# SDR CALA2026092419777

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2026
- Submitted: September 24, 2026
- Operation: Air carrier
- Aircraft: [N54570](https://openairdocs.org/aircraft/N54570), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 13047
- Aircraft time: 1,793 hours, 681 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Switch
- Condition: Intermittent
- 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/CALA2026092419777

## Discrepancy

NO SMOKING AND EMERGENCY EXIT SIGNS NOT WORKING PROPERLY IN AUTO.   COMPLIED WITH DDP COMPLIED WITH DDP DM WORK WITH MEL LP 3349297.  SUSPECT ISSUES RELATED.  PERFORMED OPS TEST FOR EMERGENCY LIGHTS IAW AMM 33-51-00-710-804-A. FOUND NO SMOKING SWITCH 190RH INTERMITTENT.  REMOVED AND REPLACED THE NO SMOKING SIGN TOGGLE SWITCH IAW ASM 33-51-00. OPS CHKD GOOD MEL PLACARD REMOVED.

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