What was found
AIRCRAFT WAS GROUNDED: 96F IN COCKPIT - NO CHANGE AFTER 40 MINUTES FLIGHT TIME REQUIRING RETURN TO DFW, EMERGENCY DECLARED AIRCRAFT LANDED OVERWEIGHT WITHOUT INCIDENT. MAINTENANCE REPLACED LOW LIMIT VALVE IAW AMM 21-52-30.
- Difficulty date
- July 19, 2025
- Submitted
- July 21, 2025
- Operation
- Air carrier
- Aircraft
- N759AN
- Make and model
- Boeing 777223
- Aircraft serial
- 32638
- Aircraft time
- 11,620 hours, 11,633 cycles
- System (JASC)
- 2100 · Air Conditioning System
- Part
- Valve
- Condition
- Faulted
- Location
- Zone 100
- 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.