What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT 12WL BATTERY FAILED BITE TEST. MAINTENANCE REPALCED THE BATTERY FOR EMERGENCY POWER SUPPLY UNIT 12WL PER AMM 33-51-38 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- August 11, 2023
- Submitted
- August 14, 2023
- Operation
- Air carrier
- Aircraft
- N174US
- Make and model
- Airbus A320*
- Aircraft serial
- 1492
- Aircraft time
- 72,541 hours, 27,860 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- AD321431
- Condition
- No Test
- Location
- Zone 200 - Fuse
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.