Service difficulty report · Idg · Boeing 777222

Difficulty date
June 25, 2023
Submitted
June 26, 2023
Operation
Air carrier
Aircraft
N792UA
Make and model
Boeing 777222
Aircraft serial
26934
Aircraft time
104,063 hours, 13,875 cycles
Part
Idg
Part number
764939A
Part serial
A0310
Condition
Unknown
Location
Right Eng
Part time
715,577 hours, 702,536 cycles
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

ELEC GEN SYS R EICAS STATUS IDG HAS DISCONNECTED OR A PROTECTIVE TRIP OF THE GENERATOR CONTROL BREAKER HAS OCCURRED OR A PROTECTIVE TRIP OF THE BTB HAS OCCURRED. REPLACED IDG REF AMM24-11-01. ENGINE RUN ACCOMPLISHED AND ALL INDICATION NORMAL. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1146648 SN OFF 0310 ACCOMPLISHED IDT INSPECTION PER GMM 09-10-05 OF IDG FEEDER CABLE TERMINAL BLOCK, VERIFIED CORRECT STACKING AND TORQUE OF NUTS AND COVER INSTALLATION PER AMM 24-11-01-400-801. INSPECTION SATISFACTORY, OK TO CONTINUE INSTA GENERATOR, IDG OFF 25-2411-9-0002 0310 ON 25-2411-9-0002 0330