What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY POWER SUPPLY UNIT 12WL BATTERY FAILED TEST - REPLACED EMERGENCY POWER SUPPLY UNIT 12WL BATTERY AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK WITH NO ISSUES NOTED
- Difficulty date
- October 1, 2026
- Submitted
- October 6, 2026
- Operation
- Air carrier
- Aircraft
- N450AN
- Make and model
- Airbus A321253NX
- Aircraft serial
- 10810
- Aircraft time
- 17,846 hours, 4,859 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- AD321431
- 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.