What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT 13WL FAILED OPERATIONAL TEST PRIOR TO SLIDE CHANGE. REPLACED BATTERY WITH NEW IAW AMM 33-51-38, OPS CHECK GOOD.
- Difficulty date
- May 5, 2021
- Submitted
- May 9, 2021
- Operation
- Air carrier
- Aircraft
- N199UW
- Make and model
- Airbus A321211
- Aircraft serial
- 5475
- Aircraft time
- 26,257 hours, 10,438 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Inoperative
- 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.