Service difficulty report · Idg · Boeing 777300ER

Difficulty date
September 22, 2024
Submitted
September 25, 2024
Operation
Air carrier
Aircraft
N2251U
Make and model
Boeing 777300ER
Aircraft serial
66591
Aircraft time
19,909 hours, 2,393 cycles
Part
Idg
Part number
767146A
Part serial
AAAG004315
Condition
Faulty
Location
Nr 2
Part time
19,909 hours, 2,393 cycles
Stage of operation
CL
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

ELEC GEN OFF R EICAS ADVISORY RIGHT GENERATOR CONTROL BREAKER (GCB) OPEN OR GENERATOR CONTROL SWITCH OFF, AND ENGINE NOT SHUT DOWN. FIM TASK REF : FIM TASK REFERENCE NOT FOUND CMC MSG# 2431562 FLIGHT STATUS: L INTERMITTENCE CODE: M PH: CLIMB NARRATIVE: GENERATOR CONTROL UNIT (R) CMC MSG# 2431632 FLIGHT STATUS: I INTERMITTENCE CODE: M PH: CLIMB GENERATOR CONTROL UNIT (R) REFER LOG 9331368 R IDG REPLACED AND TEST NORMAL RII PERFORMED. RESULT NORMAL ELEC GEN SYS R EICAS STATUS IDG HAS DISCONNECTED OR A PROTECTIVE TRIP OF THE GENERATOR CONTR OL BREAKER HAS OCCURRED OR A PROTECTIVE TRIP OF THE BTB HAS OCCU RRED. FIM TASK REF : FIM TASK REFERENCE NOT FOUND CMC MSG# 2431632. REPLACED RIGHT ENGINE IDG IAW AMM 24-11-01-400-801-001 REV 101. ENGINE RUN TEST NORMAL.

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