# N59BK: 2018 BKF BACKCOUNTRY SUPERCUB, registration cancelled 2020-08-02

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 2, 2020
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [BKF BACKCOUNTRY SUPERCUB](https://openairdocs.org/model/bkf-backcountry-supercub) (registry code 056359R)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: BC21115R006
- Year built: 2018
- Type of aircraft: Fixed wing single engine
- Kit: Backcountry Super Cubs LLC BACKCOUNTRY SUPERCUB
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 31, 2018
- Certificate issued: April 25, 2017
- Last registry action: April 25, 2017
- Mode S code: A79B31
- Owner when cancelled: [Bkf Aviation Ltd](https://openairdocs.org/faa-owner/BKF%20AVIATION%20LTD)
- Location: [Boston, MA](https://openairdocs.org/faa-place/MA/Boston)
- Owner type: Corporation
- Owner's area on the map: 42.3507° N, 71.0605° W: Placed by OpenAirDocs at the center of ZIP code 02111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N59BK
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=59BK
- Page: https://openairdocs.org/deregistered/N59BK-2020-08-02

From the FAA registry file of November 4, 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 BKF BACKCOUNTRY SUPERCUB: https://openairdocs.org/model/bkf-backcountry-supercub.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 WPR19LA029](https://openairdocs.org/ntsb/WPR19LA029), Nov 19, 2018: BKF Backcountry Supercub (N59BK), Casper, WY, substantial damage. Probable cause: The seizure of two bearings in the reduction gearbox, resulting in the total loss of engine power. Contributing to the accident was a high descent rate which resulted in a hard landing.

## 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 20181119023799A](https://openairdocs.org/incident/20181119023799A), Nov 19, 2018: Bkf Aviation Ltd BACKCOUNTRY SUPERCUB (N59BK), Casper, WY, Substantial damage. Aircraft engine propeller accessary case locked up after takeoff.

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