Service difficulty report · Generator · Boeing 777224

Difficulty date
July 15, 2026
Submitted
July 20, 2026
Operation
Air carrier
Aircraft
N78003
Make and model
Boeing 777224
Aircraft serial
27579
Aircraft time
127,054 hours, 13,203 cycles
Part
Generator
Part number
1701768
Part serial
2680
Condition
Faulted
Location
Nr 2
Part time
30,838 hours, 3,395 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 BACKUP GEN R EICAS STATUS RIGHT BACKUP GENERATOR OFF DUE TO A PROTECTIVE TRIP. DB BACKUP CONVERTER R&R E2 BUG IAW AMM 24-25-01. SECOND QUALIFIED MECHANIC WITNESSED NEW BUG SHAFT PACKING REPLACED. C/W IDT INSPECTION OF BUG FEEDER CABLE INSTALLATION IAW AMM 24-25-01 AND GMM 09-10-05 E2 BUG OPS AND LEAK CHECK STILL REQUIRED. POWERPLANT TEST 2, 5 AND 6 REQUIRED IAW AMM 24-25-01. CORRECTION ONLY POWERPLANT TEST 2 AND 5 REQUIRED FOR BUG ON E2. OPS & LEAK CHECK GOOD.