SDR UALA2011080804099

Service difficulty report · Unknown · Boeing 767322

Difficulty date: August 5, 2011
Submitted: September 6, 2011
Operation: Air carrier
Aircraft: N667UA
Make and model: Boeing 767322
Aircraft serial: 29239
Aircraft time: 46,799 hours, 12,762 cycles
Engine: Pwa PW4056
System (JASC): 2400 · Electrical Power System
Part: Unknown
Condition: Malfunctioned
Location: Electrical Sys
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: D

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

What was found

DURING PUSHBACK FROM GATE, ALL ELECTRIC POWER DROPPED OFF PROG TEXT: - ITEM ROLLED FORWARD. FOUND APU HAD SHUT DOWN DURING ENG START SEQ, CREW STATED THEY SHUTDOWN PACKS THEN WENT TO ENG START. CHKD APU ECU-REV FLOW FAULT, REF FIM49-11-00 PG141, BLK3, CKD APU SURGE VLV CONNECTIONS ALL OK, APU STARTED NORMAL WITH SHIPS' LOAD, STARTED NR 2 ENG, NORMAL START. NO FAULTS ON BPCU FOR ANY GEN.