What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY BATTERY IN OFAR FAILED FUNCTIONAL TEST. MAINTENANCE REPLACED EPSU IAW AMM 33-29-12.
- Difficulty date
- March 16, 2025
- Submitted
- March 17, 2025
- Operation
- Air carrier
- Aircraft
- N720AN
- Make and model
- Boeing 777323ER
- Aircraft serial
- 33522
- Aircraft time
- 47,605 hours, 5,515 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- D71702001
- Part serial
- 195211
- Condition
- No Test
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.