What was found
DURING HEAVY MAINTENANCE: DON'T PASS TEST EMERGENCY LIGHT FAULT EPSU 10WL; REMOVED AND REPLACED EPSU FIN 10WL IAW AMM 33-51-38-000-001-A, AMM 33-51-38-400-001-A TOOL USED MILLIOHMETER P/N 97F92003500000 S/N G0002 DUE DATE JUN-19-2026.
- Difficulty date
- December 23, 2025
- Submitted
- December 23, 2025
- Operation
- Air carrier
- Aircraft
- N2039J
- Make and model
- Airbus A321271NX
- Aircraft serial
- 09016
- Aircraft time
- 92,559 hours, 34,592 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- No Test
- Location
- Zone 200
- 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.