What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT SYSTEM TEST FOUND BATTERY AT 11WL FAILED. REMOVED AND REPLACED 11WL BATTERY PER AMM 33-51-38.
- Difficulty date
- February 20, 2021
- Submitted
- February 22, 2021
- Operation
- Air carrier
- Aircraft
- N926UW
- Make and model
- Airbus A321231
- Aircraft serial
- 6618
- Aircraft time
- 18,972 hours, 7,380 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Failed
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.