# N4SF: 1966 Cessna U206B, registration cancelled 1981-12-18

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 18, 1981
- Status when cancelled: Valid registration
- Airframe: [Cessna U206B](https://openairdocs.org/model/cessna-u206b) (registry code 2073322)
- Data sheets: [TCDS A4CE](https://openairdocs.org/tcds/A4CE) (OpenAirDocs)
- Serial number: U2060733
- Year built: 1966
- Type of aircraft: Fixed wing single engine
- Certificate issued: July 19, 1977
- Mode S code: A4A985
- Owner when cancelled: [Hiekel M](https://openairdocs.org/faa-owner/HIEKEL%20M)
- Location: [Hooper Bay, AK](https://openairdocs.org/faa-place/AK/Hooper%20Bay)
- Owner type: Individual
- The mark today: https://openairdocs.org/aircraft/N4SF
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4SF
- Page: https://openairdocs.org/deregistered/N4SF-1981-12-18

From the FAA registry file of October 28, 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 Cessna U206B: https://openairdocs.org/model/cessna-u206b.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 ANC79DAG17](https://openairdocs.org/ntsb/ANC79DAG17), Oct 23, 1978: Cessna U206A (N4SF), Hooper Bay, AK, substantial damage

## FAA accident and incident reports (1)

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.

- [Accident 19781023040599A](https://openairdocs.org/incident/19781023040599A), Oct 23, 1978: Cessna TU206A (N4SF), Hooper Bay, AK, Substantial damage. Gusts to 30 knots.

## Other aircraft with N4SF

- [Registered now](https://openairdocs.org/aircraft/N4SF): Israel Aircraft Industries ASTRA SPX, S/N 128, built 2000

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