Notes-RF09

AO2

02:17 Big spike in CO2, dip in O2, presumably from engines firing to turn us around.
02:19 Big spike again in CO2, dip in O2.  Again, from engines at a guess.
03:50ish O2 reportedly climbs just before we start to descend, suggesting an artefact.  LOOK INTO
07:13 Switched to manual control to get MBL

MEDUSA

Lack of a maintenance day has really set MEDUSA back: 
Unable to test Pressures at flask to determine whether PBypass is representative of Pflask. 
Unable to determine optimal setpoints.
Able, however, to replace synflex in and out of Flask Pos 22.  This has solved the leak we saw before, as evidenced in leak check procedures 1-2.
Extra time was given before flight--started on airplane around 13:00 local--but this was still not enough time to do all that was needed, esp. as flight departure was brought back an additional 15 mins to 16:15 local, 02:15 Zulu.

01:38  General Note:  Because of lost maintenance day (not known until the night before), flasks were switched out this morning.  As a result, an overnight leak check was not possible.  The standard leak check procedure has been/is being run at the moment, as we had 2 extra hours before the standard Pre-Flight time.
02:22 Taxing in moderate rain.  We experienced light to moderate rain for several hours before flight.
02:50 Told we will have to stay at 41K for an hour at beginning of flight to ensure we have enough fuel to get back to Tahiti in the event of an emergency.
03:25 Britt comes online.
04:03:55 Started Prepurge
04:07 Stopped prepurge since traps were plugging.
05:16 Changed second trap out. 
06:38 Changed third trap out!!!! Onto last trap now.