SDR CALA2011051300363

Service difficulty report · Apu · Boeing 777224

Difficulty date: May 13, 2011
Submitted: May 13, 2011
Operation: Air carrier
Aircraft: N78003
Make and model: Boeing 777224
Aircraft serial: 27579
Aircraft time: 61,033 hours, 6,481 cycles
System (JASC): 4920 · APU Core Engine
Part: Apu
Part number: 25491190001
Part serial: 1278
Condition: Failed
Location: Tail
Part time: 22,321 hours, 4,196 cycles
Stage of operation: TX
How discovered: O
Nature of condition: K, A
Precautionary procedure: E

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

What was found

APU AUTO-SHUTDOWN DURING ENGINE START WITH AN ASSOCIATED APU TAILPIPE FIRE. TAIL PIPE FIRE EXTINGUISHED, INSPECTED APU FOR ANY EXTERNAL DAMAGE, NONE NOTED. CONFIRMED APU HAS INTERNAL DAMAGE, WILL APU HAS INTERNAL DAMAGE, WILL REQUIRE APU CHANGE. DO NOT START APU. OK TO CONTINUE AS PER MEL, APU INOP.