What was found
APU INOPERATIVE. ACFT GROUNDED. RAN APU SEVERAL TIMES LOADED APU AND MONITORED APU OPERATION, GROUND FUNCTIONAL CHECKS NORMAL. ACFT APU FAULT HISTORY ADDED AS FOLLOWS: 49-41012, 49-31016, & 49-41010. MAINTENANCE HISTORY WAS 49-52284.
- Difficulty date
- January 24, 2016
- Submitted
- January 26, 2016
- Operation
- Air carrier
- Aircraft
- N583AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35681
- Aircraft time
- 32,531 hours, 9,619 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Apu
- Condition
- Inoperative
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.