What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT MID RIGHT FAULTED DURING EMERGENCY LIGHTS BUILT IN TEST EQUIPMENT CHECK. REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY (14WL) PER AMM 33-51-38.
- Difficulty date
- February 1, 2024
- Submitted
- February 3, 2024
- Operation
- Air carrier
- Aircraft
- N162UW
- Make and model
- Airbus A321211
- Aircraft serial
- 1412
- Aircraft time
- 73,372 hours, 28,162 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- AD321431
- Condition
- Faulty
- Location
- Emergency Lights
- 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.