What was found
EMER LIGHT TEST FAILED. ESPU BATTERY EMER L AND EPSU BATTERY AFT L MESSAGES DISPLAYED. REPLACED EPSU BATTERIES AT 11WL AND 13WL. EMERGENCY LIGHTS OPS CHECK GOOD, NO FAULTS ON CIDS.
- Difficulty date
- July 7, 2025
- Submitted
- July 8, 2025
- Operation
- Air carrier
- Aircraft
- N432UA
- Make and model
- Airbus A320232
- Aircraft serial
- 587
- Aircraft time
- 85,721 hours, 34,132 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- AD321431
- 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.