SDR ASAA2015031110928

Service difficulty report · Apu · Boeing 737890

Difficulty date: March 11, 2015
Submitted: March 13, 2015
Operation: Air carrier
Aircraft: N592AS
Make and model: Boeing 737890
Aircraft serial: 35190
Aircraft time: 27,329 hours, 8,474 cycles
System (JASC): 4920 · APU Core Engine
Part: Apu
Condition: Malfunctioned
Stage of operation: TX
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 WILL NOT START. NO LIGHT OFF. GOT FAULT LIGHT 3 TIMES. ACFT GROUNDED. ACCOMPLISHED FIM TASK 49-60-801, APU BITE LOG MAINTENANCE MESSAGE 49-41012, ACCOMPLISHED FIM TASK 49-40-803 INTERMITTENT FAULT. CLEARED FAULT-BITE CK OK. APU START OK, GROUND VERIFICATION, CK OK IAW FIM 49-60-801,49-40-803. NOTE HIGH WIND BLOWING DIRECTLY IN TAILPIPE & GROUND POWER DISCONNECTED DURING APU START. VISUAL INSP OF TAIL, NO FAULTS NOTED.