SDR HALA2017042100106

Service difficulty report · Idg · Boeing 76733A

Difficulty date: April 21, 2017
Submitted: April 24, 2017
Operation: Air carrier
Aircraft: N580HA
Make and model: Boeing 76733A
Aircraft serial: 28140
Aircraft time: 55,656 hours, 10,226 cycles
System (JASC): 2421 · AC Generator-Alternator
Part: Idg
Condition: Malfunctioned
Location: Lt Engine
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

"L GEN OFF" EICAS MESSAGE OCCURRED IN FLIGHT. ATTEMPTED RESET, GEN REMAINED OFFLINE. T/S REF FIM 24-20. BITE MSG GEN FOR OPEN PHASE TRIP. FOUND T3 TO N, T1, T2 OPEN ON IDG. REMOVED IDG REF AMM 24-11-01. REPLACED GEN CONTROL UNIT, MCC REQUEST. REF AMM 24-32-02. INSTALLED L IDG IAW AMM 24-11-01. OPS CHECKS GOOD. LEAK CHECKS GOOD.

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