What was found
L DUCT PRESS FLUX. L DUCT PRESS CYCLING DURING DESCENT. VALVE LOCKED CLOSED. WORK WITH CH1548. 1 EA RELAY 562-1833 SHPD AOM D0403. REPLACED PRSOV PER MM. ACP ENGINE RUN, OPS CHECK NORMAL.
- Difficulty date
- March 20, 2011
- Submitted
- March 24, 2011
- Operation
- Air carrier
- Aircraft
- N648UA
- Make and model
- Boeing 767322
- Aircraft serial
- 25285
- Aircraft time
- 78,777 hours, 12,690 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 7732887810
- Part serial
- 26
- Condition
- Faulty
- Location
- Bleed Air Sy
- Stage of operation
- DE
- 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.