What was found
DURING CABIN EMERGENCY LIGHTING SYS CHECK, SYSTEM OK LIGHT NEVER CAME ON. EPSU UNIT L MESSAGE FOUND AFT LH EPSU UNIT TO BE FAULTY. REPLACED BATTERY PACK AND REPERFORMED CABIN EMERGENCY LIGHT SYSTEM CHECK AT PTP. SYS TEST OK.
- Difficulty date
- May 1, 2026
- Submitted
- May 5, 2026
- Operation
- Air carrier
- Aircraft
- N484UA
- Make and model
- Airbus A320232
- Aircraft serial
- 1609
- Aircraft time
- 69,651 hours, 30,761 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- 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.