# N6835D: 1961 Cougar D1-M, registration cancelled 2014-11-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 13, 2014
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cougar D1-M](https://openairdocs.org/model/cougar-d1-m) (registry code 62501C1)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: DC161C904F
- Year built: 1961
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: May 13, 1965
- Certificate issued: January 17, 1969
- Last registry action: September 19, 1992
- Mode S code: A91167
- Owner when cancelled: [Butchart Marshall G](https://openairdocs.org/faa-owner/BUTCHART%20MARSHALL%20G)
- Location: [Rockford, IL](https://openairdocs.org/faa-place/IL/Rockford)
- Owner type: Individual
- Owner's area on the map: 42.2288° N, 89.1625° W: Placed by OpenAirDocs at the center of ZIP code 61102, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N6835D
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6835D
- Page: https://openairdocs.org/deregistered/N6835D-2014-11-13

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 Cougar D1-M: https://openairdocs.org/model/cougar-d1-m.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 UNK64X1767](https://openairdocs.org/ntsb/UNK64X1767), May 14, 1964: Cougar D1M (N6835D), Michigan, ND, substantial damage

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