What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT BATTERY SHOW FAULT ON EMERGENCY POWER SUPPLY UNIT 10WL. REMOVED AND REPLACED EMERGENCY LIGHTING BATTERY AT EMERGENCY POWER SUPPLY UNIT 10WL PER AMM 33-51-38.
- Difficulty date
- December 19, 2021
- Submitted
- December 21, 2021
- Operation
- Air carrier
- Aircraft
- N991AU
- Make and model
- Airbus A321231
- Aircraft serial
- 7131
- Aircraft time
- 15,781 hours, 6,030 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- Faulty
- Location
- Zone 200 - Fuse
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.