What was found
SHIP 3957 -PRES- CABIN ALTITUDE WARNING AT FL200 WITH RIGHT PACK ON MEL. FLIGHT CREW COMMENCED DECENT TO 10K FT PER QRH. CORRECTIVE ACTION: REPLACED LEFT PACK FLOW CONTROL VALVE AND RIGHT PACK TRIM AIR VALVE. ALL OPS CHECK GOOD.
- Difficulty date
- December 5, 2024
- Submitted
- December 9, 2024
- Operation
- Air carrier
- Aircraft
- N957DZ
- Make and model
- Boeing 7379GPER
- Aircraft serial
- 38748
- Aircraft time
- 26,107 hours, 16,150 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Control Valve
- Part number
- 3966081
- Part serial
- 7385
- Condition
- Inoperative
- Location
- Nr 1 A/C Pack
- Part time
- 26,091 hours, 16,131 cycles
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.