What was found
ON TAKE OFF BOTH BLEED DUCT PRESS INDICATORS FLUCTUATED. AFTER 5 MIN, BOTH STABILIZED WITH 10PSI SPLIT. ACCOMPLISHED PNEUMATIC HEALTH CHECK ON NR 1 AND 2 ENG PRSOV'S, BOTH FAILED HEALTH CHECK PER MM. REPLACED NR 1 ENG AND 2 ENG PRSOV.
- Difficulty date
- September 4, 2010
- Submitted
- September 8, 2010
- Operation
- Air carrier
- Aircraft
- N672UA
- Make and model
- Boeing 767322
- Aircraft serial
- 30027
- Aircraft time
- 39,181 hours, 10,325 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 7732887810
- Part serial
- 89041183
- Condition
- Faulty
- Location
- Bleed System
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.