What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT (12WL) FAILED BATTERY TEST. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT (12WL) BATTERY PER AMM 33-51-38 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- April 8, 2018
- Submitted
- April 11, 2018
- Operation
- Air carrier
- Aircraft
- N708UW
- Make and model
- Airbus A319112
- Aircraft serial
- 972
- Aircraft time
- 52,440 hours, 30,390 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 321454
- 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.