What was found
AIRCRAFT WAS NOT GROUNDED: AFT LEFT EMERGENCY POWER SUPPLY UNIT FAILED SYSTEM TEST. REPLACED AFT EMERGENCY POWER SUPPLY UNIT BATTERY AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-38.
- Difficulty date
- November 8, 2024
- Submitted
- November 8, 2024
- Operation
- Air carrier
- Aircraft
- N454AL
- Make and model
- Airbus A321253NX
- Aircraft serial
- 10785
- Aircraft time
- 10,807 hours, 2,889 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- No Test
- Location
- Zone 200
- 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.