What was found
SPLIT DUCTS AT 30000 RT 10 PSI HIGHER THAN LEFT AT CRUISE THRUST SMALLER SPLIT AT IDLE THRUST. NR 2 HIGH STAGE VALVE WEAK. REPLACED NR 2 HIGH STAGE VALVE. OPS CHECK ON GROUND RUN NORMAL.
- Difficulty date
- September 16, 2008
- Submitted
- October 7, 2008
- Operation
- Air carrier
- Aircraft
- N552UA
- Make and model
- Boeing 757222
- Aircraft serial
- 26641
- Aircraft time
- 63,604 hours, 18,315 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Valve
- Part number
- 2790598101
- Condition
- Faulty
- Location
- Nr 2
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- W
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.