What was found
(AIRCRAFT NOT GROUNDED) DURING EPSU TEST BAT/EPSU(13WL) AFT L FAULT. / FOLLOWING TSM 33-51-00-810-857-A, REMOVED AND REPLACED 13WL EPSU BATTERY IAW AMM 33-51-38-000-002-A AND AMM 33-51-38-400-002-A. OPS CHECK SATISFACTORY."
- Difficulty date
- August 26, 2026
- Submitted
- August 26, 2026
- Operation
- Air carrier
- Aircraft
- N286NV
- Make and model
- Airbus A320214
- Aircraft serial
- 4447
- Aircraft time
- 47,424 hours, 30,053 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Epsu
- Part number
- 321431
- Part serial
- 963692
- Condition
- Faulted
- 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.