What was found
AIRCRAFT WAS NOT GROUNDED. EMERGENCY POWER SUPPLY UNIT AT 14WL MIDDLE RIGHT FAILED TEST. REMOVED AND REPLACED EPSU BATTERY IAW AMM 33-51-38-401. OPERATIONAL CHECK GOOD.
- Difficulty date
- February 2, 2017
- Submitted
- February 4, 2017
- Operation
- Air carrier
- Aircraft
- N142AN
- Make and model
- Airbus A321231
- Aircraft serial
- 6711
- Aircraft time
- 5,177 hours, 1,945 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Part serial
- 779031
- Condition
- Failed
- Location
- Cabin
- 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.