What was found
AIRCRAFT WAS NOT GROUNDED: EMERGENCY POWER SUPPLY UNIT 17WL FAILED SYSTEM TEST. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT 17WL PER AMM 33-51-38 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.
- Difficulty date
- July 18, 2026
- Submitted
- July 21, 2026
- Operation
- Air carrier
- Aircraft
- N450AN
- Make and model
- Airbus A321253NX
- Aircraft serial
- 10810
- Aircraft time
- 17,071 hours, 4,642 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Power Supply
- Part number
- 32146210
- Part serial
- 178617
- Condition
- No Test
- Location
- Zone 200
- Part time
- 17,065 hours, 4,641 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.