What was found
AIRCRAFT NOT GROUNDED. EMERGENCY POWER SUPPLY UNIT AT 11WL FAILED TEST. REMOVED AND REPLACED EPSU BATTERY IAW AMM 33-51-38. OPERATIONAL CHECK GOOD.
- Difficulty date
- January 13, 2017
- Submitted
- January 17, 2017
- Operation
- Air carrier
- Aircraft
- N144AN
- Make and model
- Airbus A321231
- Aircraft serial
- 6723
- Aircraft time
- 4,946 hours, 1,850 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- 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.