SDR UIEA2021051401132

Service difficulty report · Apu · Boeing 767375

Difficulty date: May 14, 2021
Submitted: May 17, 2021
Operation: Air carrier
Aircraft: N649GT
Make and model: Boeing 767375
Aircraft serial: 25864
Aircraft time: 92,908 hours, 23,751 cycles
System (JASC): 4940 · APU Start/Ignition System
Part: Apu
Condition: Faulted
Stage of operation: CR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

APU FAULT- NO START @ FL 380- 3 ATTEMPTS- RPMS STOPPED @ 25- THEN FAULT MSG. COLD SOAK START UNSUCCESSFUL.(<P>NOTED BY MX, PERFORMED ECU BITE IAW B767 FIM 49-11 FT 958, MINI FLAGS "OK". LRU FAULTS LAST ATTEMPT "NORMAL STOP" 2,3,4 "NO LIGHT OFF", RESET CLEARED, NORMAL START. </P>)