What was found
AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK FOUND EMERGENCY POWER SUPPLY UNIT BATTERY (15WL) FAULT. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY (15WL) PER AM/M 33-51-38.
- Difficulty date
- February 21, 2021
- Submitted
- February 23, 2021
- Operation
- Air carrier
- Aircraft
- N141NN
- Make and model
- Airbus A321231
- Aircraft serial
- 6656
- Aircraft time
- 17,515 hours, 6,494 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- Faulted
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.