# SDR S2YA04046

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2004
- Submitted: February 4, 2005
- Operation: Air carrier
- Aircraft: [N85SK](https://openairdocs.org/aircraft/N85SK), registered now
- Make and model: Beech 1900D
- Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (OpenAirDocs)
- Aircraft serial: UE85
- Engine: Pwa PT6A67D
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Annunciator
- Condition: False Activation
- Location: Air Stair
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/S2YA04046

## Discrepancy

SHORTLY AFTER TAKEOFF, THE CREW NOTICED AN AIR STAIR DOOR ANNUNCIATOR ILLUMINATED.  THE CREW PERFORMED AN AIR-TURN-BACK.  THE DOOR WAS FOUND TO BE SECURE.  AFTER MX CONSULTATION, THE ANNUNCIATOR WAS MEL`D AND THE AC RETURNED TO SERVICE.  MX CLEANED AND INSPECTED THE DOOR SWITCHES.  WITH NO FURTHER DISCREPANCIES, THE MEL WAS CLEARED AND THE AC WAS RETURNED TO SERVICE. (K)

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