What was found
AIRCRAFT WAS GROUNDED: DURING ACCOMPLISHMENT OF EPSU SYSTEM TEST ON P/S CHECK, HAD EPSU UNIT FAULT EMER R. T/S IAW TSM 33-51-00-810-801-A. EPSU BITE OF 12WL CONFIRMED UNIT FAULT. MAINTENANCE REPLACED EPSU 12WL IAW AMM 33-51-38.
- Difficulty date
- October 23, 2025
- Submitted
- October 23, 2025
- Operation
- Air carrier
- Aircraft
- N124US
- Make and model
- Airbus A320214
- Aircraft serial
- 1314
- Aircraft time
- 70,368 hours, 35,723 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 32146210
- Part serial
- 012133
- Condition
- Inoperative
- Location
- Zone 200
- Part time
- 46,631 hours, 18,408 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.