What was found
ENG DUCT PRESSURES SPLIT DURING CRUISE WITH ISOL VALVE CLOSED & BLEED SWITCH SELECTED ON. RECORD DUCT PRESSURES. LT DUCT PRESS 40 PSI RT DUCT PRESS 30 PSI. REPLACED NR 1 ENGINE HIGH PRESSURE SHUTOFF VALVE.
- Difficulty date
- August 6, 2009
- Submitted
- August 10, 2009
- Operation
- Air carrier
- Aircraft
- N543UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25698
- Aircraft time
- 67,924 hours, 19,719 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 32144882
- Part serial
- 243
- Condition
- Faulty
- Location
- Nr 1 Engine
- Stage of operation
- CR
- 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.