# SDR AALA202507074479

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2025
- Submitted: July 7, 2025
- Operation: Air carrier
- Aircraft: [N923US](https://openairdocs.org/aircraft/N923US), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6543
- Aircraft time: 32,872 hours, 13,362 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Wire Harness
- Part number: 800880550
- Condition: Defective
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202507074479

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: SEAT MOUNTED AISLE EMERGENCY LIGHTS DO NOT ILLUMINATE AT ROWS 24 AND 25ABC. REPLACED EMERGENCY ESCAPE PATH LIGHTING HARNESS 351WL7 FOR SEAT ROWS S4 AND 25 ABC PER AMM 33-51-18. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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