SDR ASAA2017061721115

Service difficulty report · Apu · Boeing 737890

Difficulty date: June 17, 2017
Submitted: June 19, 2017
Operation: Air carrier
Aircraft: N529AS
Make and model: Boeing 737890
Aircraft serial: 35198
Aircraft time: 28,156 hours, 8,408 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Apu
Condition: Malfunctioned
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

APU INOPERATIVE. ACFT GROUNDED. PERFORMED BITE AND FOUND FAULTS 49-41011, 49-11019, 49-11021 AND 49-61223. PERFORMED FIM 49-40, TASK 802, 49-10, TASK 801, 49-10, TASK 802, AND 49-60, TASK 812. ALL CHECKED GOOD. AFTER STARTING APU IAW FIM TASKS AND RECHECKING BITE, NO FAULTS INDICATED.