SDR ASAA2014112609779

Service difficulty report · Apu · Boeing 737890

Difficulty date: November 26, 2014
Submitted: December 2, 2014
Operation: Air carrier
Aircraft: N531AS
Make and model: Boeing 737890
Aircraft serial: 35199
Aircraft time: 17,862 hours, 5,436 cycles
System (JASC): 4920 · APU Core Engine
Part: Apu
Condition: Malfunctioned
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FIRST START AT FL 360 = FAULT LIGHT ILLUMINATED, EXTINGUISHED IN 30 SECONDS. SECOND START AT FL 360, FAULT LIGHT ILLUMINATED, EXTINGUISHED IN 5 + MINUTES. ACFT GROUNDED. FAULT HISTORY LOGGED MAINT MESSAGE 49-31016 OVERTEMP SHUTDOWN 2 CYCLES. COMPLETED FIM TASK 49-30, TASK 803. NO DEFECTS NOTED, NO FAULTS CURRENT STATUS. APU STARTS AND OPS CHECKED NORMAL AT GATE.