What was found
EPSU SYSTEM TEST FAULT 10WL FWD L. EPSU 10WL SELF TEST SHOWS BATTERY FAULT. REMOVED AND REPLACED EPSU BATTERY IAW AMM 33-51-00-710-812-A. NEW BATTERY TESTED OK, OK FOR SERVICE.
- Difficulty date
- July 26, 2026
- Submitted
- July 27, 2026
- Operation
- Air carrier
- Aircraft
- N14512
- Make and model
- Airbus A321271NX
- Aircraft serial
- 11953
- Aircraft time
- 6,123 hours, 2,210 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- AD321431
- Condition
- Faulted
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.