What was found
DURING AN EMERGENCY LIGHTS TEST GIVES FAULT BATTERY EPSU (16WL) OVERWING AND BATTERY OVERTEMP, EPSU (16WL). REMOVED AND REPLACED EPSU BATTERY AT 16 WL IAW AMM 33-51-38, OPS CHECKED GOOD.
- Difficulty date
- February 18, 2026
- Submitted
- February 19, 2026
- Operation
- Air carrier
- Aircraft
- N14503
- Make and model
- Airbus A321271NX
- Aircraft serial
- 11599
- Aircraft time
- 5,855 hours, 2,173 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- AD321431
- 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.