What was found
AIRCRAFT IN BASE MAINTENANCE: DURING OPERATIONAL TEST OF THE CABIN EMERGENCY LIGHTING EMERGENCY POWER SUPPLY UNIT 13WL BATTERY FAULT DISPLAYED. REPLACED BATTERY AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- November 4, 2024
- Submitted
- November 8, 2024
- Operation
- Air carrier
- Aircraft
- N561UW
- Make and model
- Airbus A321231
- Aircraft serial
- 5317
- Aircraft time
- 38,411 hours, 15,634 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- No Test
- Location
- Zone 200 - Fuse
- 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.