What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTING SYSTEM FAILED OPERATIONAL TEST. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT 14WL PER AMM 33-51-38 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-00.
- Difficulty date
- December 2, 2022
- Submitted
- December 5, 2022
- Operation
- Air carrier
- Aircraft
- N993AN
- Make and model
- Airbus A321231
- Aircraft serial
- 7188
- Aircraft time
- 17,892 hours, 6,939 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 32146210
- Part serial
- 152273
- 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.