Pilot Ashby exchanges the LiOH canisters on the middeck of Columbia

[54] ISO: 100 Aprt: F4 Shut: 60 Lens: 35 Exps: P Prog: Po ExpC: -1.3 Metr: Mtrx Fl s: Norm D md: S F md: S F ar: Spot Dist: 2.0m