What was found
AIRCRAFT WAS NOT GROUNDED: CIDS 1 FAILED EMERGENCY POWER SUPPLY UNIT SYSTEM. REPLACED L1 EMERGENCY POWER SUPPLY UNIT BATTERY.
- Difficulty date
- March 30, 2024
- Submitted
- April 1, 2024
- Operation
- Air carrier
- Aircraft
- N521UW
- Make and model
- Airbus A321231
- Aircraft serial
- 3944
- Aircraft time
- 48,050 hours, 18,194 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- UNKNOWN
- Condition
- Failed
- Location
- Emergency Lights
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.