What was found
APU WITH A FAILED CSS ATTEMPTS WITH FAULT CODE 49-31016. ACFT GROUNDED. REMOVED AND REPLACED THE APU FUEL CONTROL UNIT IAW AMM 49-31-11. OPS & LEAK CHECKED NORMAL.
- Difficulty date
- February 1, 2018
- Submitted
- February 5, 2018
- Operation
- Air carrier
- Aircraft
- N593AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35107
- Aircraft time
- 37,527 hours, 11,446 cycles
- System (JASC)
- 4930 · APU Engine Fuel and Control
- Part
- Fcu
- Part number
- 4419215
- Part serial
- CUC13072
- Condition
- Faulted
- Location
- Apu
- Part time
- 8,650 hours, 16,668 cycles
- 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.