# SDR SIMA991611

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N209AT](https://openairdocs.org/aircraft/N209AT), registered now
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Aircraft serial: 0209
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Switch
- Part number: EO326
- Condition: Out Of Adjust
- Location: Cargo Door
- Stage of operation: CL
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA991611

## Discrepancy

BOS - FLT 4963 - FORWARD CARGO DOOR WARNING CAME ON AFTER TAKEOFF.  DECLARED EMERGENCY.  RETURNED TO FIELD.  ADJUSTED DOOR PROXIMITY SWITCH AND PERFORMED OPERATIONAL CHECK WITH NO FURTHER DISCREPANCIES NOTED.  (M)

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