What was found
FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL 340. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED AT FL 340. GROUNDED - YES. ON DEFERRAL.
- Difficulty date
- October 29, 2023
- Submitted
- November 2, 2023
- Operation
- Air carrier
- Aircraft
- N494AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41729
- Aircraft time
- 28,575 hours, 8,701 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- 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.