What was found
AIRCRAFT WAS NOT GROUNDED: DURING OPERATIONS TEST OF EMERGENCY LIGHTING SYSTEM. FOUND 11WL EMERGENCY POWER SUPPLY UNIT BATTERY FAULTING. REMOVED AND REPLACED 11WL EMERGENCY POWER SUPPLY UNIT BATTERY PER AMM 33-51-38.
- Difficulty date
- February 6, 2021
- Submitted
- February 8, 2021
- Operation
- Air carrier
- Aircraft
- N724UW
- Make and model
- Airbus A319112
- Aircraft serial
- 1122
- Aircraft time
- 56,957 hours, 34,272 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Faulted
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L, J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.