# SDR PNSA2014112502

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 25, 2014
- Submitted: November 28, 2014
- Operation: Air carrier
- Aircraft: N403XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 403
- Aircraft time: 39,782 hours
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: F, B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/PNSA2014112502

## Discrepancy

CARGO SMOKE LIGHT ON CWP ILLUMINATED INFLIGHT THEN CARGO, LAVATORY & AVIONICS LIGHTS ILLUMINATED ON SHUTDOWN.  PERFORMED CONTINUITY CHECKS ON SYSTEM'S WIRING, NO DEFECTS NOTED.  R & R AVIONICS & LAVATORY SMOKE DETECTORS FOR TROUBLESHOOTING OPERATIONS CHECK OK.  WEU REPLACED FOR TROUBLESHOOTING OPERATIONS CHECKED OK ALSO PERFORMED OVERWEIGHT LANDING INSPECTION.

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