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Transcribe page 72 of 170
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5-18 Support mtg: ✓• COMM TEST (XPOP; Hi-PWR; GDS) ✓• UHF antenna • ORB OPS C/L (remaining coming this wk) ✓• MDAC tests (SIR-A; UHF) ✓• 10:30 mtg (method of data logging) • LG HYD ISOL VALVE -(FTO). RI wanted to put redundant Ntr in line...disapproved. We don't want to do FTO • flight rules mtgs are coming • decision made not to deloft traj for STS-2 (wanted to do it to keep out of structural limits) • CR to deploy air probes @ M=5.... data not useful until probes "calibrated" (over several flights) • PT1's R18 need to be in [[??C8S or C85??]] in all axes (aero PTI's) Cb mtg • EPDC ops. Loads 1-2 kW below estimated; FC O[[subscript]]2[[/subscript]] purity higher than spec, ∴ degradation betw FC purges not what expected. Should have auto FC purge for STS-2 (CR to correct logic) CR disapproved for STS-2 (could use R/W) OF signal conditioner cb popped: internal short B pwr sply - pwr sply being changed out. Remount O[[subscript]]2[[/subscript]] xducer (it indicated 137 psi below the pressure on 1st stage) showed low due to lack of T compensation: reads low at T-2:20, when orbiter goes on internal pwr - sees cryo. • long touchdown 3000' [[circled]]1[[/circled]] no observed effect when gear comes down (comb. of gear & ground effect cancel?) [[circled]]2[[/circled]] ~1000' due to aero (drag of orb. ~"4 counts" diff.) • ECLS - pinned H[[subscript]2[[/subscript]]O temp cntl valve to full hot (this bypasses logic ckt) → ↑ flow rate didn't work [[strikethrough]]happen[[/strikethrough]] work fast enough to heat cabin (STS-2 sol'n not determined yet)
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