# N956SM: Dehavilland DHC-6 TWIN OTTER, registration cancelled 1971-01-28

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 28, 1971
- Status when cancelled: Valid registration
- Airframe: [Dehavilland DHC-6 TWIN OTTER](https://openairdocs.org/model/dehavilland-dhc-6-twin-otter) (registry code 2802606)
- Serial number: 203
- Type of aircraft: Fixed wing multi engine
- Certificate issued: April 29, 1970
- Mode S code: AD4C8D
- Owner when cancelled: [Goldenwest Airlines Inc](https://openairdocs.org/faa-owner/GOLDENWEST%20AIRLINES%20INC)
- Location: [Long Beach, CA](https://openairdocs.org/faa-place/CA/Long%20Beach)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N956SM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=956SM
- Page: https://openairdocs.org/deregistered/N956SM-1971-01-28

From the FAA registry file of October 31, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Dehavilland DHC-6 TWIN OTTER: https://openairdocs.org/model/dehavilland-dhc-6-twin-otter.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI71AC031](https://openairdocs.org/ntsb/CHI71AC031), Nov 9, 1970: Dehavilland DHC-6 (N956SM), Lacrosse, WI, destroyed

## Other aircraft with N956SM

- [Registered now](https://openairdocs.org/aircraft/N956SM): Cessna 182S, S/N 18280783, built 2000

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