# N21977: 1939 Rearwin 9000-KR, registration cancelled 2016-09-07

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 7, 2016
- Status when cancelled: Third renewal notice
- Airframe: [Rearwin 9000-KR](https://openairdocs.org/model/rearwin-9000-kr) (registry code 2371402)
- Engine: [Ken Royce 90-5 series](https://openairdocs.org/engine/ken-royce-90-5-series) (registry code 37002)
- Data sheets: [TCDS A-591](https://openairdocs.org/tcds/A-591) (OpenAirDocs)
- Serial number: 646-D
- Year built: 1939
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: January 24, 1972
- Certificate issued: March 19, 1990
- Last registry action: March 29, 1999
- Mode S code: A1DE5E
- Owner when cancelled: [Southwest Assets Inc](https://openairdocs.org/faa-owner/SOUTHWEST%20ASSETS%20INC)
- Location: [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City)
- Owner type: Corporation
- Owner's area on the map: 35.5813° N, 97.5737° W: Placed by OpenAirDocs at the center of ZIP code 73120, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N21977
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21977
- Page: https://openairdocs.org/deregistered/N21977-2016-09-07

From the FAA registry file of October 29, 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 Rearwin 9000-KR: https://openairdocs.org/model/rearwin-9000-kr.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 FTW80FRJ05](https://openairdocs.org/ntsb/FTW80FRJ05), Oct 21, 1979: Rearwin 9000KR (N21977), Jacksonville, TX, 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 19791021033659A](https://openairdocs.org/incident/19791021033659A), Oct 21, 1979: Comwth REWN9000KR (N21977), Jacksonville, TX, Substantial damage. Pilot made downwind takeoff. Engine failed to develop full power. Hit tree off end rwy. Found broken exhaust spring

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