20110620 Maintenance Day before Flight 20110623 Maintenance day before flight Purged LP for 2 hours Performed Leak Check 2.b. and still a leak of ~100 torr/hr between SA248 and SP248 20110625 Day of flight 21:20-30 AO2O2 creeps down a lot (~90 per meg) (i.e. looks on screen to be going up) just before takeoff. CO2 appears not to change. which may have to do with door being opened and closed a lot Or may have to do with fitting between DS SA248 and inlet filter which should probably be properly strain relieved. 22:07:00-08:00 Leak test on AO2 inlet. 22:08:00-09:00 Leak test on MEDUSA inlet. No obvious change/leak observed by 00:04 Something clearly wrong with AO2 O2. Lots of spikes (particularly with clouds) and wandering of cals.