What was found
TRIM AIR PRSOV R RIGHT TRIM AIR PRESSURE RELIEF SHUTOFF VALVE (PRSOV) FAILED. (STATUS - LOCKED IN CLOSED POS). REPLACED VALVE, PASSED TEST ON MAT.
- Difficulty date
- August 21, 2011
- Submitted
- September 16, 2011
- Operation
- Air carrier
- Aircraft
- N778UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26940
- Aircraft time
- 62,133 hours, 11,089 cycles
- Engine
- Pwa PW4077
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Shutoff Valve
- Part number
- 8102294
- Part serial
- 102
- Condition
- Failed
- Location
- Ac Bay
- Stage of operation
- NR
- 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.