What was found
APU OVERSPEED LT ILLUMINATED DURING APU START APU FAILED TO START LT WENT OUT AFTER 5 MINUTES. GROUNDED - YES. STARTED APU, NO DEFECTS NOTED. NO HISTORY WITHIN 30 DAYS. BITE APU. FAULT CODE 49-31014. A/C OK FOR SERVICE.
- Difficulty date
- October 8, 2018
- Submitted
- October 10, 2018
- Operation
- Air carrier
- Aircraft
- N468AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41735
- Aircraft time
- 17,093 hours, 5,693 cycles
- System (JASC)
- 4960 · APU Controls
- Part
- Unknown
- Condition
- Malfunctioned
- Location
- Apu
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.