What was found
AIRCRAFT WAS NOT GROUNDED: DURING EMERGENCY POWER SUPPLY UNIT SYSTEM TEST FAILED 11WL EMERGENCY BATTERY. REMOVED AND REPLACED 11WL EMERGENCY BATTERY PER AMM 33-51-38.
- Difficulty date
- July 24, 2021
- Submitted
- July 26, 2021
- Operation
- Air carrier
- Aircraft
- N152AA
- Make and model
- Airbus A321231
- Aircraft serial
- 6887
- Aircraft time
- 16,993 hours, 6,547 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- No Test
- 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.