What was found
LEFT DUCT PRESSURE FLUCTUATED 20 PSI DURING DESCENT WITH POWER JUST ABOVE IDLE. REPLACED HPSOV. TESTED AND NO LEAK DETECTED.
- Difficulty date
- February 5, 2009
- Submitted
- February 9, 2009
- Operation
- Air carrier
- Aircraft
- N596UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28749
- Aircraft time
- 43,628 hours, 12,087 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Condition
- Fluctuates
- 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.