What was found
FLT DECK TEMP WENT FULL HOT ON CLIMBOUT. STANDBY NO HELP. TRIM AIR OFF REGAINED CONTROL. AFTER FUTHER TROUBLESHOOTING FOUND SYSTEM NEEDS TRIM AIR VALVE 643-9023 CONFLICTING WITH OTHER WORK. RPL FLT DECK TRIM AIR MODULATING VLV.
- Difficulty date
- August 4, 2011
- Submitted
- September 6, 2011
- Operation
- Air carrier
- Aircraft
- N529UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25019
- Aircraft time
- 67,446 hours, 24,955 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Modulating Valve
- Part number
- 3987865
- Part serial
- 273
- Condition
- Malfunctioned
- Location
- Ac Bay
- Stage of operation
- CL
- 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.