What was found
CID TEST FAILED FOR THE EMERGENCY POWER SUPPLY UNIT. THE AIRCRAFT WAS GROUNDED. MAINTENANCE REPLACED THE POWER SUPPLY 12WL IAW AMM 33-51-38-000, AND PERFORMED SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- November 24, 2018
- Submitted
- November 26, 2018
- Operation
- Air carrier
- Aircraft
- N197UW
- Make and model
- Airbus A321211
- Aircraft serial
- 3928
- Aircraft time
- 32,011 hours, 12,370 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Condition
- No Test
- Location
- Emergency Lights
- 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.