What was found
APU MAINT LIGHT ILLUMINATES INTERMITENTLY. GROUNDED - YES. PERFORMED APU BITE TEST PER FIM 49-60 TASK 801 NO FAULT FOUND APU MAINT LIGHT IS OFF SEAMC DAN NOTIFIED.
- Difficulty date
- July 10, 2023
- Submitted
- July 12, 2023
- Operation
- Air carrier
- Aircraft
- N478AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44105
- Aircraft time
- 29,544 hours, 9,309 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- Stage of operation
- NR
- 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.