SDR ASAA2016102218449

Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date: October 22, 2016
Submitted: October 24, 2016
Operation: Air carrier
Aircraft: N487AS
Make and model: Boeing 737990ER
Aircraft serial: 44108
Aircraft time: 4,070 hours, 1,320 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Warning Light
Condition: False Activation
Location: Apu
Stage of operation: NR
How discovered: 9
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

APU FAULT LIGHT ILLUMINATED, FAULT CODE: 49-11019. ACFT GROUNDED. FAULT CODE 49-11019 DC POWER LOSS SHUTDOWN POWER INTERRUPTED. POWERED APU ON THEN NORMAL SHUTDOWN. CHECKED CDU APU "CURRENT STATUS" NO FAULTS FOUND. A/C OK FOR SERVICE IAW FIM 49-10 TASK 801.