What was found
APU WILL NOT START. APU HAS HISTORY OF 'APU CONTROL' EICAS MSG WITH NO FAULTS FOUND AND PREVIOUS PARTS REPLACED STARTER, I-O CARD, AND RELAY K49002. NO HELP. REPLACED APU.
- Difficulty date
- August 4, 2009
- Submitted
- August 5, 2009
- Operation
- Air carrier
- Aircraft
- N787UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26939
- Aircraft time
- 53,890 hours, 8,129 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 4920 · APU Core Engine
- Part
- Apu
- Part number
- 388005501
- Part serial
- P1149331
- Condition
- Malfunctioned
- Location
- Apu Bay
- 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.