What was found
PRESS/DE- DUE TO LOSS OF BOTH PACKS CAUSING PRESSURIZATION LOSS AND OXYGEN MASKS DEPLOYED. REPLACED RT FLOW CONTROL CARD.
- Difficulty date
- December 22, 2025
- Submitted
- December 24, 2025
- Operation
- Air carrier
- Aircraft
- N699DL
- Make and model
- Boeing 757232
- Aircraft serial
- 29970
- Aircraft time
- 82,993 hours, 32,253 cycles
- System (JASC)
- 2197 · Air Conditioning System Wiring
- Part
- Circuit Board
- Part number
- 285T009311
- Part serial
- D01176
- Condition
- Failed
- Location
- Zone 100
- Part time
- 79,177 hours, 30,877 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- G, B
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.