What was found
APU FAILED TO START FL34, APU FAULT LIGHT WITH 1000 EGT SPIKE. GROUNDED - YES. REMOVED AND REPLACED APU FUEL CONTROL UNIT IAW B737-800 AMM 49-31-11.
- Difficulty date
- January 18, 2023
- Submitted
- January 23, 2023
- Operation
- Air carrier
- Aircraft
- N563AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35180
- Aircraft time
- 58,326 hours, 17,169 cycles
- System (JASC)
- 4930 · APU Engine Fuel and Control
- Part
- Fuel Control
- Part number
- 4419215
- Part serial
- CUC12784
- Condition
- Faulted
- Location
- Apu
- Part time
- 8,567 hours, 14,059 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.