- Difficulty date
- February 4, 2005
- Submitted
- February 19, 2005
- Operation
- Air carrier
- Aircraft
- N748AL
- Make and model
- Boeing 73776N
- Aircraft serial
- 30050
- Part
- Apu
- Part number
- 38007021
- Part serial
- P5010
- Condition
- Defective
- Location
- Apu Bay
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- E
- Precautionary procedure
- E
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 446, HNL-LAS: APU EGT SPIKE 660 DEGREES THEN FLUCTUATING AT CRUISE; FLT ATTENDANT REPORTED LOW RUMBLING SOUND; APU CPS FREQ BLANK; AMPS=0, VOLTS=1. SHUTDOWN APU; FLIGHT ATTENDANT REPORTED RUMBLING SOUND STOPPED. DIVERTED TO OAK, UNEVENTFUL LANDING. REPLACED APU PER 737-700 MM 49-11-00-4 AND TASK 49-11-00-400-802. NO FAULTS NOTED. AIRCRAFT RETURNED TO SERVICE. NO VIBRATION NOTED ON SUBSEQUENT FLIGHT VERIFICATION.