SDR UIEA2021070901499

Service difficulty report · Apu · Boeing 767328

Difficulty date: July 8, 2021
Submitted: July 12, 2021
Operation: Air carrier
Aircraft: N1499A
Make and model: Boeing 767328
Aircraft serial: 27428
System (JASC): 4940 · APU Start/Ignition System
Part: Apu
Condition: Faulted
Stage of operation: CR
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 RELIABILITY COLD START ACCOMPLISHED ON FLT LEG ONT-CVG SAT -48Â°C FL 370 START UNSUCCESSFUL ON 3 ATTEMPTS. APU FAULT MESSAGE OCCURRED DURING APU RELIABILITY COLD START(<P>ITEM# 1 - ENG SNAPSHOT INFO NOTED BY MX. SEE NEXT DISC. ITEM FOR APU COLD SOAK FAIL..</P> / <P>ITEM# 2 - PERFORMED 3 SUCCESSFUL APU STARTS ON THE GROUND. APU REMAINS OPERATIONAL, NO DEFECTS FOUND REF AMM 49-11-00. APU COLD SOAK DMI 149804 REMAINS OPEN.</P>)