What was found
AIRCRAFT WAS GROUNDED: ON TAKEOFF, RECEIVED LEFT AND RIGHT BACKUP GENERATOR FAULTS. UNABLE TO RESET. DECLARED AN EMERGENCY, RETURNED TO LHR, LANDING SAFELY. REPLACED BACKUP GENERATOR FREQUENCY CONVERTER PER AMM 24-25-09.
- Difficulty date
- December 22, 2021
- Submitted
- December 23, 2021
- Operation
- Air carrier
- Aircraft
- N784AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29588
- Aircraft time
- 83,386 hours, 10,218 cycles
- System (JASC)
- 2420 · AC Generation System
- Part
- Converter
- Part number
- 757183G
- Condition
- Fault Message
- Location
- Zone 100 - Fuse
- Stage of operation
- TO
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.