What was found
CSS APU FAILED START AT FL380, FL380, FL310 - FAULT LIGHT. GROUNDED - YES. REMOVED & REPLACED APU LUBE MODULE REF B737-800 AMM 49-91-11.
- Difficulty date
- September 12, 2022
- Submitted
- September 26, 2022
- Operation
- Air carrier
- Aircraft
- N558AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35177
- Aircraft time
- 58,326 hours, 17,068 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Lubrication Unit
- Part number
- 41310203
- Part serial
- 7263
- Condition
- Faulty
- Location
- Apu
- Part time
- 9,367 hours, 16,831 cycles
- Stage of operation
- CR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.