What was found
AIRCRAFT WAS NOT GROUNDED: FOUND EMERGENCY POWER SUPPLY UNIT (14WL) FAULT DURING CABIN INTERCOMMUNICATION DATA SYSTEM TEST. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT (14WL) BATTERY PER AMM 33-51-38.
- Difficulty date
- August 30, 2021
- Submitted
- August 31, 2021
- Operation
- Air carrier
- Aircraft
- N194UW
- Make and model
- Airbus A321211
- Aircraft serial
- 3629
- Aircraft time
- 42,167 hours, 16,477 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Faulted
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.