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fires 2 down jets, but both are on right (not 1L & 1R). Fires F4D not F4D F2D F3D this results in (1) Uncommanded yaw & (2) fail-off message when in 4RJD-ON configuration. Fix: deselect F2D...F3D is the next one in the priority table in SW, so it’s fixed. (3) EECOM (EGIL?) claims that the new software & new fuel cells (?) correct the auto purge problem of STS-1... & should allow auto purges on STS-2. Note: for auto purge, just put heater switches to GPC, & initiate purge (it does thermal management automatically) (4) Fire/Smoke Detect/Suppress Test works in this load EGIl (5) new capability: tie main buses through the PL bus. We tried this, but the procedure didn’t work in the sim..... ask EGIL’s about procedure IMU procedures(6) IMU problems (1) ∠ Δx,Δy,Δz > allowed for torquing without consultation. (2) Also, numbers of ~ 100° on IMU 1 & IMU 2. Reasons: (2) had uplinked √6 REFSMMAT, but missed IMU/IMU alignment [always IMU 1&2 to 3] (1) string 3 had been dropped for ~5 min... during that time IMU 3 wasn't getting pulse torquing (small Δ).
Transcription Notes:
IMV = Inter Module Ventilation
IMU = Inertial Measurement Unit (sensor assembly with gyroscopes and accelerometers)
I think this document is referring to IMU