What was found
AIRCRAFT WAS NOT GROUNDED: PERFORMED EMERGENCY POWER SUPPLY UNIT TEST AND MESSAGE "BAT/EPSU (14WL) MID RIGHT FAILED". REMOVED AND REPLACED THE BATTERY OF THE EMERGENCY POWER SUPPLY UNIT PER AMM 33-51-38.
- Difficulty date
- May 16, 2024
- Submitted
- May 17, 2024
- Operation
- Air carrier
- Aircraft
- N152AA
- Make and model
- Airbus A321231
- Aircraft serial
- 6887
- Aircraft time
- 25,421 hours, 10,061 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- UNKNOWN
- Condition
- No Test
- 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.