SDR HALA2009122900609

Service difficulty report · Gcu · Boeing 7673G5

Difficulty date: December 29, 2009
Submitted: December 31, 2009
Operation: Air carrier
Aircraft: N584HA
Make and model: Boeing 7673G5
Aircraft serial: 24258
Aircraft time: 90,174 hours, 17,365 cycles
System (JASC): 2410 · Alternator-Generator Drive
Part: Gcu
Part number: 734284F
Part serial: 4285
Condition: Failed
Location: Left
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

ETOPS SIGNIFICANT SYS - LT GENERATOR FAILED/RESET/FAILED. BITE BPCU FAULT MSG, DP TRIP GEN/FDR, DP TRIP MAIN BUS/OVERLAP ZONE. CHK IAW FIM 24-20-00/101 & WDM 24-21-11. ALL CHECKED GOOD. REMOVED AND REPLACED LT GCU AS A PRECAUTION. OPS CHK NML. OK FOR SERVICE. RAN ENG OPS CHK, NML.

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