What was found
AIRCRAFT WAS NOT GROUNDED: UNABLE TO CONTROL TEMPERATURE IN FLIGHT DECK. TEMP CONTINUED TO,DROP TO 50 F. REQURING A RETURN TO LAX. MAINTENANCE EPLACED FLIGHT DECK TRIM AIR PRESSURE AND REGULATING SHUT OFF VALVE IAW AMM 21-62-01.
- Difficulty date
- May 13, 2025
- Submitted
- May 15, 2025
- Operation
- Air carrier
- Aircraft
- N726AN
- Make and model
- Boeing 777323ER
- Aircraft serial
- 31550
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Shutoff Valve
- Condition
- Inoperative
- Location
- Zone 100 - Fuse
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.