# SDR AALA202609110306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2026
- Submitted: September 11, 2026
- Operation: Air carrier
- Aircraft: [N906AA](https://openairdocs.org/aircraft/N906AA), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7651
- Aircraft time: 28,306 hours, 11,356 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Cids
- Condition: Fault Message
- 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/AALA202609110306

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING ACCOMPLISHING OF EMERGENCY LIGHT TEST CIDS1 SHOWS FAULT EPSU(10WL)FWD L/ DEU-B(300RH1). THEN CIDS 1 INOPERATIVE.

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