# N56AT: 1977 Arctic S-1B2, registration cancelled 2022-05-09

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 9, 2022
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Arctic S-1B2](https://openairdocs.org/model/arctic-s-1b2) (registry code 0790208)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS A-754](https://openairdocs.org/tcds/A-754), [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: 1007
- Year built: 1977
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: December 13, 1977
- Certificate issued: January 21, 2016
- Last registry action: August 28, 2018
- Mode S code: A724A3
- Owner when cancelled: [Clark Gordon G](https://openairdocs.org/faa-owner/CLARK%20GORDON%20G)
- Location: [Fairbanks, AK](https://openairdocs.org/faa-place/AK/Fairbanks)
- Owner type: Individual
- Owner's area on the map: 65.1550° N, 146.2526° W: Placed by OpenAirDocs at the center of ZIP code 99707, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N56AT
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=56AT
- Page: https://openairdocs.org/deregistered/N56AT-2022-05-09

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 Arctic S-1B2: https://openairdocs.org/model/arctic-s-1b2.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 ANC80FAD02](https://openairdocs.org/ntsb/ANC80FAD02), Dec 11, 1979: Interstate S1B2 (N56AT), Sitka, AK, substantial damage

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 19861027073359I](https://openairdocs.org/incident/19861027073359I), Oct 27, 1986: Arctic S1B2 (N56AT), Girdwood, AK, Minor damage. Aircraft nosed over after striking a depression on a short frozen gravel bar.
- [Accident 19791211034099A](https://openairdocs.org/incident/19791211034099A), Dec 11, 1979: Arctic S1B2 (N56AT), Sitka, AK, Substantial damage. Tried water takeoff with ice on aircraft. Left wing stalled on liftoff. Left float wing hit water.

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