SDR ASAA2015040911300

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: April 9, 2015
Submitted: April 13, 2015
Operation: Air carrier
Aircraft: N560AS
Make and model: Boeing 737890
Aircraft serial: 35179
Aircraft time: 33,128 hours, 10,069 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Warning Light
Condition: Illuminated
Location: Apu
Stage of operation: TX
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

AFTER LANDING, APU FAULT LIGHT ILLUMINATED ON FIRST ATTEMPT, AFTER 5 MINUTES, FAULT LIGHT EXTINGUISHED AND APU STARTED ON SECOND ATTEMPT. ACFT GROUNDED. PERFORMED APU BITE PROCEDURE FOUND FAULT CODE 49-41011 FIM NO FLAME SHUTDOWN. PERFORMED APU START, START WAS NORMAL. NO HISTORY FOR 30 DAYS. REF 49-61-00, FIM 49-40 TASK 802. PERFORMED FIM TASK 49-40, TASK 802. NO FAULTS FOUND, APU CK'S NORMAL.