What was found
AIRCRAFT WAS NOT GROUNDED: WHILE PS CHECK WAS PERFORMED, BATTERY AND EMERGENCY POWER SUPPLY UNIT AFT LEFT 13WL SYSTEM TEST FAILED. REMOVED AND REPLACED BATTERY SUPPLY (13WL) AFT LEFT PER AMM 33-51-38.
- Difficulty date
- June 19, 2021
- Submitted
- June 21, 2021
- Operation
- Air carrier
- Aircraft
- N112AN
- Make and model
- Airbus A321231
- Aircraft serial
- 5991
- Aircraft time
- 23,482 hours, 4,766 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Failed
- Location
- Emergency Lights
- 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.