What was found
APU STARTED AND RAN NORMALLY FOR 3 MINUTES THEN QUIT AGAIN. CHIP DET AND OIL FILTER CHECKS GOOD. REPLACED APU PER AMM.
- Difficulty date
- July 4, 2011
- Submitted
- July 29, 2011
- Operation
- Air carrier
- Aircraft
- N550UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25398
- Aircraft time
- 74,214 hours, 21,521 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Apu
- Part serial
- 60111331
- Condition
- Faulty
- 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.