What was found
LT ENG BLEED VALVE STUCK CLOSED ON GROUND. BITE TEST OF AIR SUPPLY MODULE FAULTS "PRSOV". REPLACED PRSOV FAILED HEALTH CHECK. REPLACED PRSOV. RAN NR 1 ENG PRSOV, OPERATES NORMAL.
- Difficulty date
- August 13, 2011
- Submitted
- September 9, 2011
- Operation
- Air carrier
- Aircraft
- N663UA
- Make and model
- Boeing 767322
- Aircraft serial
- 27160
- Aircraft time
- 78,964 hours, 12,806 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 7732887810
- Part serial
- 124
- Condition
- Failed
- Location
- Bleed Air Sys
- Stage of operation
- IN
- 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.