What was found
APU FAILED TO START. FAULT LIGHT ILLUMINATED AND EICAS MSG APU FAULT DISPLAYED. APU HAD OVER 6,000 CYCLES AND WAS REPLACED.
- Difficulty date
- April 30, 2008
- Submitted
- May 2, 2008
- Operation
- Air carrier
- Aircraft
- N544UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25322
- Aircraft time
- 62,350 hours, 18,016 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Apu
- Part number
- MR49112
- Condition
- Unknown
- 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.