What was found
AIRCRAFT WAS GROUNDED: EMERGENCY POWER SUPPLY UNIT 12WL FAILED CIDS TEST. MAINTENANCE REPLACED BATTERY FOR EMERGENCY POWER SUPPLY UNIT 12WL PER AMM 33-51-38.
- Difficulty date
- August 3, 2026
- Submitted
- August 6, 2026
- Operation
- Air carrier
- Aircraft
- N980UY
- Make and model
- Airbus A321231
- Aircraft serial
- 5795
- Aircraft time
- 40,180 hours, 16,327 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.