What was found
APU BITE INOPERATIVE, NO INTERFACE BETWEEN APU AND ECU. ACFT GROUNDED. ACCOMPLISHED FIM 49-65, TASK 801 FAULT ISOLATION PROCEDURES A THRU F. BITE RESTORED. ACCOMPLISH APU BITE 49-60-801.
- Difficulty date
- April 11, 2015
- Submitted
- April 13, 2015
- Operation
- Air carrier
- Aircraft
- N593AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35107
- Aircraft time
- 27,078 hours, 8,359 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Apu
- Condition
- Faulted
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.