What was found
FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL340. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- September 18, 2023
- Submitted
- September 22, 2023
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 27,510 hours, 8,622 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- 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.