What was found
AIRCRAFT WAS GROUNDED: BAT/EPSU (15WL) MID L FAULT DISPLAYED DURING SYSTEM TEST. MAINTENANCE REPLACED THE BATTERY FOR EMERGENCY POWER SUPPLY UNIT 15WL PER AMM 33-51-38 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- July 11, 2026
- Submitted
- July 15, 2026
- Operation
- Air carrier
- Aircraft
- N956XV
- Make and model
- Airbus A321253N
- Aircraft serial
- 8126
- Aircraft time
- 24,484 hours, 7,080 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.