What was found
FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL380. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED - YES. REMOVED AND REPLACED FUEL CONTROL UNIT PER B737-900 AMM 49-31-11 OPS CHECK OK NO LEAKS NOTED.
- Difficulty date
- April 5, 2020
- Submitted
- April 7, 2020
- Operation
- Air carrier
- Aircraft
- N467AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36362
- Aircraft time
- 22,832 hours, 7,442 cycles
- System (JASC)
- 4930 · APU Engine Fuel and Control
- Part
- Fcu
- Part number
- 4419215
- Part serial
- CUC12784
- Condition
- Faulty
- Location
- Apu
- Part time
- 7,295 hours, 12,283 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.