What was found
AIRCRAFT WAS NOT GROUNDED: DURING EMERGENCY POWER SUPPLY UNIT SYSTEM TEST, FOUND MESSAGE "BATTERY/ EMERGENCY POWER SUPPLY UNIT (10 WL) FORWARD LEFT". REMOVED AND REPLACED BATTERY OF EMERGENCY POWER SUPPLY UNIT 10WL PER AMM 33-51-38.
- Difficulty date
- May 1, 2021
- Submitted
- May 3, 2021
- Operation
- Air carrier
- Aircraft
- N9002U
- Make and model
- Airbus A319115
- Aircraft serial
- 5698
- Aircraft time
- 20,691 hours, 9,850 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, J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.