What was found
APU SHUT DOWN ON START, ATTEMPTED 2 STARTS, BOTH FAILED WITH FAULT INDICATION. [07-20-07] REPLACED APU SURGE CONTROL VALVE PER MM 49-53-01-401. ACCOMPLISHED MAIN ENG START PER JRH. OP CHECKS SATISFACTORY.
- Difficulty date
- June 20, 2007
- Submitted
- June 22, 2007
- Operation
- Air carrier
- Aircraft
- N646UA
- Make and model
- Boeing 767322
- Aircraft serial
- 25283
- Aircraft time
- 66,957 hours, 10,980 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 4920 · APU Core Engine
- Part
- Control Valve
- Condition
- Malfunctioned
- Location
- Apu
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.