What was found
APU FAILED TO START. TWO ATTEMPTS. NO EGT RISE AND FAULT LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED APU ECU REF B737-800 AMM 49-61-12 OPS CHECK GOOD.
- Difficulty date
- January 3, 2022
- Submitted
- January 27, 2022
- Operation
- Air carrier
- Aircraft
- N596AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35688
- Aircraft time
- 49,328 hours, 14,692 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- None
- Condition
- None
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.