What was found
AIRCRAFT WAS NOT GROUNDED: DURING TESTING OF THE EMERGENCY LIGHTS SYSTEM, EMERGENCY POWER SUPPLY UNIT 10WL BATTERY FAULT OCCURRED. REPLACED BATTERY AND ACCOMPLISHED A SATISFACTORY BITE / OPERATIONAL CHECK PER AMM 33-51-38.
- Difficulty date
- August 6, 2022
- Submitted
- August 10, 2022
- Operation
- Air carrier
- Aircraft
- N416AN
- Make and model
- Airbus A321253NX
- Aircraft serial
- 9466
- Aircraft time
- 6,949 hours, 1,885 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- None
- Location
- Zone 200 - Fuse
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.