# N6641B: 1958 Cessna 310B, registration cancelled 2015-05-04

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 4, 2015
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cessna 310B](https://openairdocs.org/model/cessna-310b) (registry code 2074208)
- Engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026)
- Data sheets: [TCDS 3A10](https://openairdocs.org/tcds/3A10) (OpenAirDocs)
- Serial number: 35741
- Year built: 1958
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: July 15, 1958
- Certificate issued: January 2, 1991
- Last registry action: February 17, 2009
- Mode S code: A8C592
- Owners when cancelled: [Duff J W DBA](https://openairdocs.org/faa-owner/DUFF%20J%20W%20DBA), [J W Duff Aircraft Co](https://openairdocs.org/faa-owner/J%20W%20DUFF%20AIRCRAFT%20CO)
- Location: [Denver, CO](https://openairdocs.org/faa-place/CO/Denver)
- Owner type: Individual
- Owner's area on the map: 39.7614° N, 104.9167° W: Placed by OpenAirDocs at the center of ZIP code 80207, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N6641B
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6641B
- Page: https://openairdocs.org/deregistered/N6641B-2015-05-04

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 Cessna 310B: https://openairdocs.org/model/cessna-310b.md

## NTSB investigations (2)

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 DEN90LA098](https://openairdocs.org/ntsb/DEN90LA098), Apr 21, 1990: Cessna 310B (N6641B), Elizabeth, CO, substantial damage. Probable cause: THE PILOT'S ATTEMPT TO TAKEOFF WITH A KNOWN DEFICIENCY AND THE PARTIAL FAILURE OF THE PROPELLER FEATHERING SYSTEM.
- [NTSB LAX74FUA06](https://openairdocs.org/ntsb/LAX74FUA06), Aug 31, 1973: Cessna 310B (N6641B), Torrance, CA, minor damage, 1 fatal

## 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 19730831029329A](https://openairdocs.org/incident/19730831029329A), Aug 31, 1973: Cessna 310B (N6641B), Torrance, CA, Minor damage. Left acft with 1 eng runng to pull-start otr. Mixt rich,mags on,brakes off,unchocked.

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