What was found
AIRCRAFT WAS NOT GROUNDED. EMERGENCY POWER SUPPLY UNIT BATTERY AT 10WL FAILED TEST. REMOVED AND REPLACED EPSU BATTERY IAW AMM 33-51-38. OPERATIONAL CHECK GOOD.
- Difficulty date
- February 2, 2017
- Submitted
- February 4, 2017
- Operation
- Air carrier
- Aircraft
- N101NN
- Make and model
- Airbus A321231
- Aircraft serial
- 5834
- Aircraft time
- 10,862 hours, 2,205 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Part serial
- 775727
- 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.