# SDR AALA202609093427

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2026
- Submitted: September 9, 2026
- Operation: Air carrier
- Aircraft: [N426AN](https://openairdocs.org/aircraft/N426AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 10195
- Aircraft time: 21,776 hours, 5,863 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 132405
- Condition: Failed
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202609093427

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED THAT THE OVERHEAD EMERGENCY EXIT LIGHTS AT 3L AND 3R ILLUMINATED WHILE ALL OTHERS ARE OFF - MAINTENANCE NOTED WHILE TROUBLESHOOTING THIS ISSUE THAT THE  OVERHEAD EMERGENCY LIGHTS AT ROWS 29 AND 37 ALONG WITH THE EMERGENCY LIGHTS AT THE AFT GALLEY SERVICE DOORS 4L AND 4R ALSO STAYED ILLUMINATED - MAINTENANCE REPLACED EMERGENCY POWER SUPPLY 13WL AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-38 WITH NO ISSUES NOTED

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