What was found
AIRCRAFT WAS GROUNDED: APU GENERATOR OFFLINE EICAS AND SWITCH NON NORMAL CHECKLIST COMPLETED UNSUCCESSFULLY. AIRCRAFT DIVERTED TO LHR LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED APU GENERATOR IAW AMM 24-21-01-400-801.
- Difficulty date
- September 22, 2025
- Submitted
- September 26, 2025
- Operation
- Air carrier
- Aircraft
- N793AN
- Make and model
- Boeing 777223
- Aircraft serial
- 30255
- Aircraft time
- 94,911 hours, 12,374 cycles
- System (JASC)
- 2421 · AC Generator-Alternator
- Part
- Generator
- Part number
- 756589A
- Part serial
- 0324
- Condition
- Shutdown
- Location
- Zone 100
- Part time
- 63,733 hours, 10,062 cycles
- Stage of operation
- CR
- 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.