KENNEDY SPACE CENTER, FLA. -- The repaired Jacking, Equalization and Leveling (JEL) cylinder is attached to a crane. The crane will lift the JEL for placement in Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings.. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- Near the bottom of the repaired Jacking, Equalization and Leveling (JEL) cylinder, workers fasten the JEL to Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings.. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- Workers on Crawler Transporter No. 2 help guide a repaired Jacking, Equalization and Leveling (JEL) cylinder as it is lowered into place. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings.. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- Two workers help maneuver a repaired Jacking, Equalization and Leveling (JEL) cylinder as it is lowered into place on Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings.. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- Jacking, Equalization and Leveling (JEL) cylinders with repaired bearings are ready to be moved to Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- A crane lifts the repaired Jacking, Equalization and Leveling (JEL) cylinder to move into to Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings.. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- One of the repaired Jacking, Equalization and Leveling (JEL) cylinders is moved from the repair site for installation into Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings.. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- Supported by the overhead crane and maneuvered by several workers, a repaired Jacking, Equalization and Leveling (JEL) cylinder is lifted into position on Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings.. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- Workers accompany the repaired Jacking, Equalization and Leveling (JEL) cylinder as it is moved from the repair site for installation into Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings.. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- Workers on Crawler Transporter No. 2 help guide a repaired Jacking, Equalization and Leveling (JEL) cylinder into place. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- At the crawler parking area, one of the repaired Jacking, Equalization and Leveling (JEL) cylinders is positioned for hookup to a crane. The crane will lift the JEL for placement in Crawler Transporter No. 2. There are 16 cylinders and 32 bearings per crawler. During recent routine maintenance inspections, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks were present on 15 of the bearings. Technicians have removed and replaced 14 of the bearings on CT-2, which is being repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- After technicians removed and replaced all of the 32 bearings located in the JEL (jacking, equalization and leveling) cylinders and reinstalled the 16 cylinders on Crawler Transporter No. 2, workers take the crawler for a test run. During routine inspections, technicians found cracks in some of the bearings in the 16 JEL cylinders on the vehicle. There are 16 cylinders and 32 bearings per crawler.

KENNEDY SPACE CENTER, FLA. -- Technicians give the signal for a crane to begin lifting a jacking, equalization and leveling (JEL) cylinder and bearing on Crawler-Transporter No. 2. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- Technicians hook a crane to a jacking, equalization and leveling (JEL) cylinder and bearing on Crawler-Transporter No. 2 in preparation for its removal. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- A jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2 is lowered by a crane to a position on the ground. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler.

KENNEDY SPACE CENTER, FLA. -- A crane lowers a jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2 to a position on the ground. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- Technicians hook a crane to a jacking, equalization and leveling (JEL) cylinder and bearing on Crawler-Transporter No. 2 in preparation for its removal. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- A crane lifts a jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- The final Jacking, Equalization and Leveling (JEL) cylinder is moved to Crawler Transporter No. 2 (CT-2) for installation. During recent routine maintenance inspections, cracks were found on four bearings in two JEL cylinders. Further eddy current inspections indicated that cracks were present on 15 bearings. There are 16 cylinders and 32 bearings per crawler. CT-2 was repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

KENNEDY SPACE CENTER, FLA. -- Technicians check out a jacking, equalization and leveling (JEL) cylinders from Crawler-Transporter No. 2. During inspections, technicians removed two of the 16 JEL cylinders on the vehicle to gain access to the bearings for routine maintenance and found three of the four bearings had cracks. Of the three bearings, two had extensive damage. Further eddy current inspections indicate that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Although no cause for the cracks is known at this time, engineers are currently evaluating the situation to determine the most appropriate solution. The crawler is in the background.

KENNEDY SPACE CENTER, FLA. -- Technicians supervise a jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2 as it is lowered by a crane to a position on the ground. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- A technician steadies a jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2 as it is lowered by a crane to a position on the ground. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- Technicians closely monitor a jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2 as it lowered by a crane to a position on the ground. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- A technician holds a crane strap to steady and guide a jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2 as it is lowered by a crane to a resting position on the ground. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- Technicians remove the crane straps from a jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2 after it is lowered by a crane to a resting position on the ground. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- Technicians closely monitor a jacking, equalization and leveling (JEL) cylinder and bearing from Crawler-Transporter No. 2 as it lowered by a crane to a position on the ground. During routine maintenance inspections last week, technicians removed two of the 16 JEL cylinders on the crawler to gain access to the bearings and found three of the four bearings cracked. Further eddy current inspections indicated that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Engineers are evaluating the situation to determine the cause of the cracks and an appropriate solution to the problem.

KENNEDY SPACE CENTER, FLA. -- Perry Becker, an engineer with NASA, looks at a spacer on the bearing in one of the jacking, equalization and leveling (JEL) cylinders on Crawler-Transporter No. 2. During inspections, technicians removed two of the 16 JEL cylinders on the vehicle to gain access to the bearings for routine maintenance and found three of the four bearings had cracks. Of the three bearings, two had extensive damage. Further eddy current inspections indicate that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Although no cause for the cracks is known at this time, engineers are currently evaluating the situation to determine the most appropriate solution.

KENNEDY SPACE CENTER, FLA. -- Technicians check out a jacking, equalization and leveling (JEL) cylinders from Crawler-Transporter No. 2. During inspections, technicians removed two of the 16 JEL cylinders on the vehicle to gain access to the bearings for routine maintenance and found three of the four bearings had cracks. Of the three bearings, two had extensive damage. Further eddy current inspections indicate that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Although no cause for the cracks is known at this time, engineers are currently evaluating the situation to determine the most appropriate solution.

KENNEDY SPACE CENTER, FLA. -- A crane operator (center) talks with technicians (right) standing next to one of the jacking, equalization and leveling (JEL) cylinders from Crawler-Transporter No. 2. During inspections, technicians removed two of the 16 JEL cylinders on the vehicle to gain access to the bearings for routine maintenance and found three of the four bearings had cracks. Of the three bearings, two had extensive damage. Further eddy current inspections indicate that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Although no cause for the cracks is known at this time, engineers are currently evaluating the situation to determine the most appropriate solution.

KENNEDY SPACE CENTER, FLA. -- Perry Becker, an engineer with NASA, points to a crack in a bearing from one of the jacking, equalization and leveling (JEL) cylinders on Crawler-Transporter No. 2. During inspections, technicians removed two of the 16 JEL cylinders on the vehicle to gain access to the bearings for routine maintenance and found three of the four bearings had cracks. Of the three bearings, two had extensive damage. Further eddy current inspections indicate that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Although no cause for the cracks is known at this time, engineers are currently evaluating the situation to determine the most appropriate solution.

KENNEDY SPACE CENTER, FLA. -- Perry Becker, an engineer with NASA, looks at a bearing from one of the jacking, equalization and leveling (JEL) cylinders on Crawler-Transporter No. 2. During inspections, technicians removed two of the 16 JEL cylinders on the vehicle to gain access to the bearings for routine maintenance and found three of the four bearings had cracks. Of the three bearings, two had extensive damage. Further eddy current inspections indicate that cracks are present on 15 of the bearings. There are 16 cylinders and 32 bearings per crawler. Although no cause for the cracks is known at this time, engineers are currently evaluating the situation to determine the most appropriate solution.

KENNEDY SPACE CENTER, FLA. -- Workers help guide the final Jacking, Equalization and Leveling (JEL) cylinder into place on Crawler Transporter No. 2 (CT-2) for installation. During recent routine maintenance inspections, cracks were found on four bearings in two JEL cylinders. Further eddy current inspections indicated that cracks were present on 15 bearings. There are 16 cylinders and 32 bearings per crawler. CT-2 was repaired in order to enable Atlantis' rollout for mission STS-112, scheduled for launch no earlier than Oct. 2.

CAPE CANAVERAL, Fla. – Preparations are underway to begin removing the jacking, equalizing and leveling, or JEL, hydraulic cylinders from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Preparations are underway to begin removing the jacking, equalizing and leveling, or JEL, hydraulic cylinders from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – One of the jacking, equalizing and leveling, or JEL, hydraulic cylinders is lifted away from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Ground support equipment technicians prepare one of the jacking, equalizing and leveling, or JEL, hydraulic cylinders for removal from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Ground support equipment technicians assist as a crane is used to move a new jacking, equalizing and leveling, or JEL, hydraulic cylinder closer for installation on crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. New JEL hydraulic cylinders will be installed on CT-1 to test them for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – One of the jacking, equalizing and leveling, or JEL, hydraulic cylinders has been removed from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Ground support equipment technicians monitor the progress as a forklift is used to carry a new jacking, equalizing and leveling, or JEL, hydraulic cylinder for installation on crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. New JEL hydraulic cylinders will be installed on CT-1 to test them for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Ground support equipment technicians assist as a crane is used to move a new jacking, equalizing and leveling, or JEL, hydraulic cylinder closer for installation on crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. New JEL hydraulic cylinders will be installed on CT-1 to test them for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Ground support equipment technicians monitor the progress as a crane is used to lift and move a new jacking, equalizing and leveling, or JEL, hydraulic cylinder for installation on crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. New JEL hydraulic cylinders will be installed on CT-1 to test them for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Ground support equipment technicians monitor the progress as one of the jacking, equalizing and leveling, or JEL, hydraulic cylinders is lifted from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Ground support equipment technicians assist as one of the jacking, equalizing and leveling, or JEL, hydraulic cylinders is lowered to the ground after it was removed from crawler-transporter 1. The work is being performed at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – A forklift is used to carry a new jacking, equalizing and leveling, or JEL, hydraulic cylinder for installation on crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. New JEL hydraulic cylinders will be installed on CT-1 to test them for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Ground support equipment technicians prepare to remove the jacking, equalizing and leveling, or JEL, hydraulic cylinders from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Ground support equipment technicians monitor the progress as a crane is used to lift a new jacking, equalizing and leveling, or JEL, hydraulic cylinder for installation on crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. New JEL hydraulic cylinders will be installed on CT-1 to test them for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Ground support equipment technicians assist as a crane moves a new jacking, equalizing and leveling, or JEL, hydraulic cylinder close for installation on crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. New JEL hydraulic cylinders will be installed on CT-1 to test them for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Ground support equipment technicians review procedures before removing jacking, equalizing and leveling, or JEL, hydraulic cylinders from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Ground support equipment technicians prepare one of the jacking, equalizing and leveling, or JEL, hydraulic cylinders for removal from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Ground support equipment technicians assist as a crane moves a new jacking, equalizing and leveling, or JEL, hydraulic cylinder close for installation on crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. New JEL hydraulic cylinders will be installed on CT-1 to test them for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. – Ground support equipment technicians monitor the progress as one of the jacking, equalizing and leveling, or JEL, hydraulic cylinders is lowered to the ground after it was removed from crawler-transporter 1. The work is being performed at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – Preparations are underway to begin removing the jacking, equalizing and leveling, or JEL, hydraulic cylinders from crawler-transporter 1 at the crawler transporter maintenance facility at NASA’s Kennedy Space Center in Florida. Sixteen new JEL hydraulic cylinders will be installed on CT-1 to increase load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade CT-1 as part of its general maintenance. CT-1 could be available to carry commercial launch vehicles to the launch pad. The crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. -- Crawler-transporter 1 continues its trek on the crawlerway to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and will be tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

Crawler-transport 2 (CT-2) moves slowly along the crawlerway on its way back to the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

Crawler-transporter 2 (CT-2) moves slowly along the crawlerway toward the Vehicle Assembly Building (in the background) at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

A full view of crawler-transporter 2 (CT-2) as it moves slowly along the crawlerway on its way back to the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

Crawler-transporter 2 (CT-2) moves slowly along the crawlerway on its way back to the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

Crawler-transporter 2 (CT-2) moves slowly along the crawlerway on its way back to the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

A ground support technician checks the new hydraulic cylinders on crawler-transporter 2 (CT-2) as the vehicle moves slowly along the crawlerway toward the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

CAPE CANAVERAL, Fla. -- Crawler-transporter 1 approaches the slope on the crawlerway leading up to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and will undergo a leveling and turning test as the crawler travels along the slope to the top of the pad. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Crawler-transporter 1 approaches the top of Launch Pad 39A after traveling along the crawlerway at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and are undergoing a leveling and turning test as the crawler travels along the slope to the top of the pad. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Crawler-transporter 1 continues its trek from the crawler transporter maintenance facility to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and are being tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. -- Crawler-transporter 1 continues its trek up the slope on the crawlerway leading up to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and are undergoing a leveling and turning test as the crawler travels along the slope to the top of the pad. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- Crawler-transporter 1 begins its trek from the crawler transporter maintenance facility to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and are being tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. -- Ground support equipment technicians monitor the progress as crawler-transporter 1 begins its trek to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and are being tested for increased load carrying capacity and reliability. The Vehicle Assembly Building is visible in the background. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. -- A driver works the controls inside the cab on crawler-transporter 1 as it makes the trek on the crawlerway to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1. They will be tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

Brad Lawarre, a crawler engineer and driver on the Test and Operations Support Contract, monitors the progress from one of the crawler-transporter 2 (CT-2) cabs as the vehicle moves slowly along the crawlerway toward the Vehicle Assembly Building at NASA's Kennedy Space Center Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

CAPE CANAVERAL, Fla. -- Crawler-transporter 1 continues its trek along the crawlerway to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and are being tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. -- Ground support equipment technicians monitor the progress as crawler-transporter 1 continues its trek along the crawlerway to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and are being tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. -- A driver works the controls inside the cab on crawler-transporter 1 as it makes the trek to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1. They are being tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Daniel Casper

CAPE CANAVERAL, Fla. -- A truck sprays water along the crawlerway to reduce dust ahead of crawler-transporter 1 as it continues its trek to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and will be tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Jim Grossmann

CAPE CANAVERAL, Fla. -- A truck sprays water along the crawlerway to reduce dust ahead of crawler-transporter 1 as it begins its trek to Launch Pad 39A at NASA’s Kennedy Space Center in Florida. New jacking, equalizing and leveling, or JEL, hydraulic cylinders were installed on CT-1 and are being tested for increased load carrying capacity and reliability. The Ground Systems Development and Operations Program at Kennedy continues to upgrade the crawler-transporter as part of its general maintenance. CT-1 could be available to carry a variety of launch vehicles to the launch pad. Two crawler-transporters were used to carry the mobile launcher platform and space shuttle to Launch Complex 39 for space shuttle launches for 30 years. Photo credit: NASA/Daniel Casper

Ground support technicians check out the treads on crawler-transporter 2 (CT-2) as the vehicle moves slowly along the crawlerway toward the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

A ground support technician checks the giant treads on crawler-transporter 2 (CT-2) as the vehicle moves slowly along the crawlerway toward the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

Crawler-transporter 2 (CT-2) moves slowly along the crawlerway on its way back to the Vehicle Assembly Building (in view in the background) at NASA's Kennedy Space Center in Florida. Water sprayed by a truck in front to reduce dust creates a small rainbow. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

Ground support technicians walks alongside crawler-transporter 2 (CT-2) as the vehicle moves slowly along the crawlerway toward the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

A ground support technician walks alongside crawler-transporter 2 (CT-2) as the vehicle moves slowly along the crawlerway toward the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.

A ground support technician walks alongside crawler-transporter 2 (CT-2) as the vehicle moves slowly along the crawlerway toward the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. The crawler took a trip to the Pad A/B split to test upgrades recently completed that will allow the giant vehicle to handle the load of the agency's Space Launch System rocket and Orion spacecraft atop the mobile launcher. The Ground Systems Development and Operations Program oversaw upgrades to the 50-year-old CT-2. New generators, gear assemblies, jacking, equalizing and leveling (JEL) hydraulic cylinders, roller bearings and brakes were installed, and other components were upgraded to prepare for Exploration Mission 1.