What was found
TRIM AIR PRSOV LEFT TRIM AIR PRESSURE RELIEF SHUT OFF VALVE (PRSOV) FAILED. REPLACED LEFT TRIM AIR PRSOV PER MM, OPS CHECK NORMAL, NO MESSAGE.
- Difficulty date
- September 18, 2012
- Submitted
- September 20, 2012
- Operation
- Air carrier
- Aircraft
- N798UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26928
- Aircraft time
- 64,968 hours, 9,299 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2120 · Air Distribution System
- Part
- Shutoff Valve
- Condition
- Failed
- Location
- Ac Bay
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.