What was found
AIRCRAFT IN BASE MAINTENANCE: INOPERATIVE EMERGENCY POWER SUPPLY UNIT 12WL BATTERY IN PASSENGER CABIN. REPLACED OF THE BATTERY OF THE EMERGENCY POWER SUPPLY UNIT 12WL PER AMM 33-51-38-400-002-A.
- Difficulty date
- March 28, 2021
- Submitted
- March 29, 2021
- Operation
- Air carrier
- Aircraft
- N921US
- Make and model
- Airbus A321231
- Aircraft serial
- 6523
- Aircraft time
- 18,424 hours, 7,099 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Inoperative
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.