What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT (13WL) TEST FAILED, AFT LEFT DISPLAYED. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY (13WL) PER AMM 33-51-38.
- Difficulty date
- September 15, 2024
- Submitted
- September 16, 2024
- Operation
- Air carrier
- Aircraft
- N924US
- Make and model
- Airbus A321231
- Aircraft serial
- 6569
- Aircraft time
- 30,849 hours, 12,544 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- 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.