What was found
AIRCRAFT WAS NOT GROUNDED: FAULT MESSAGE FOR EMERGENCY POWER SUPPLY UNIT 14WL DISPLAYED DURING SYSTEM TEST. REPLACED EMERGENCY POWER SUPPLY UNIT 14WL AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-38.
- Difficulty date
- January 9, 2026
- Submitted
- January 9, 2026
- Operation
- Air carrier
- Aircraft
- N174US
- Make and model
- Airbus A321211
- Aircraft serial
- 1492
- Aircraft time
- 79,024 hours, 30,757 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 32145510
- Part serial
- 2283
- Condition
- No Test
- Location
- Zone 200
- Part time
- 65,730 hours, 25,181 cycles
- 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.