What was found
AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT CHECK REVEALED BATTERY EMERGENCY POWER SUPPLY UNIT (12WL) ERROR MESSAGE. REPLACED BATTERY PER AMM 35-51-38 AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- November 10, 2016
- Submitted
- November 11, 2016
- Operation
- Air carrier
- Aircraft
- N540UW
- Make and model
- Airbus A321231
- Aircraft serial
- 4107
- Aircraft time
- 22,912 hours, 9,053 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- Faulty
- Location
- Cabin
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.