SDR ASAA2015122914552

Service difficulty report · Apu · Boeing 737890

Difficulty date: December 29, 2015
Submitted: December 31, 2015
Operation: Air carrier
Aircraft: N586AS
Make and model: Boeing 737890
Aircraft serial: 35189
Aircraft time: 31,694 hours, 9,743 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Apu
Condition: Faulted
Stage of operation: NR
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.

What was found

FAULT LIGHT ON APU ATTEMPTED START IAW QRH FAULT LIGHT EXITING. LESS THAN 5 MINUTES ATTEMPTED ANOTHER START, ANOTHER NO START, WITH FAULT LIGHT. ACFT GROUNDED. PERFORMED FIM APU BITE CHECK, IAW MM 49-60-801. FAULT CODE 49-41011 DISPLAYED NO FLAME SHUTDOWN, PERFORMED FIM 49-40, TASK 802. FAULT RESET. APU, OPS CHECK GOOD.