What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT 10WL FAULT MESSAGE DISPLAYED DURING SYSTEM TEST. REPLACED EMERGENCY POWER SUPPLY UNIT 10WL AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-13.
- Difficulty date
- June 12, 2024
- Submitted
- June 12, 2024
- Operation
- Air carrier
- Aircraft
- N977UY
- Make and model
- Airbus A321231
- Aircraft serial
- 5409
- Aircraft time
- 36,108 hours, 14,808 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 32146210
- Part serial
- 141202
- Condition
- No Test
- Location
- Emergency Lights
- Part time
- 36,108 hours, 14,808 cycles
- 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.