What was found
AIRCRAFT WAS GROUNDED: EMERGENCY POWER SUPPLY UNIT (13WL) FAULTING EMERGENCY POWER SUPPLY UNIT OR EMERGENCY POWER SUPPLY UNIT BATTERY. OPEN
- Difficulty date
- December 20, 2022
- Submitted
- December 22, 2022
- Operation
- Air carrier
- Aircraft
- N534UW
- Make and model
- Airbus A321231
- Aircraft serial
- 3989
- Aircraft time
- 45,410 hours, 16,838 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- Faulted
- 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.