What was found
LEFT DUCT PRESSURE FLUCTUATES BETWEEN 25 TO 40 PSI ON DESCENT. FOUND PRSOV FAILED HEALTH CHECK. REPLACED PRSOV, OPS CHECKS GOOD.
- Difficulty date
- November 2, 2009
- Submitted
- November 30, 2009
- Operation
- Air carrier
- Aircraft
- N666UA
- Make and model
- Boeing 767322
- Aircraft serial
- 29238
- Aircraft time
- 40,169 hours, 11,089 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 7732887810
- Condition
- Failed
- Stage of operation
- DE
- 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.