What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY POWER SUPPLY UNIT 14WL IN PASSENGER CABIN FAULT. REPLACED POWER SUPPLY PER AMM 33-51-38-400-001-A .
- Difficulty date
- May 13, 2021
- Submitted
- May 14, 2021
- Operation
- Air carrier
- Aircraft
- N521UW
- Make and model
- Airbus A321231
- Aircraft serial
- 3944
- Aircraft time
- 39,389 hours, 14,301 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.