# N421D: 1967 Cessna 421, registration cancelled 2017-05-22

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 22, 2017
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cessna 421](https://openairdocs.org/model/cessna-421) (registry code 2076010)
- Engine: [Continental GTSIO-520 series](https://openairdocs.org/engine/continental-gtsio-520-series) (registry code 17046)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE), [TCDS E7CE](https://openairdocs.org/tcds/E7CE) (OpenAirDocs)
- Serial number: 421-0045
- Year built: 1967
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: May 8, 1998
- Certificate issued: June 4, 2002
- Last registry action: June 1, 2005
- Mode S code: A4FFA1
- Owner when cancelled: [Rumachik Robert A](https://openairdocs.org/faa-owner/RUMACHIK%20ROBERT%20A)
- Location: [Castle Rock, CO](https://openairdocs.org/faa-place/CO/Castle%20Rock)
- Owner type: Individual
- Owner's area on the map: 39.3021° N, 104.8197° W: Placed by OpenAirDocs at the center of ZIP code 80104, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N421D
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=421D
- Page: https://openairdocs.org/deregistered/N421D-2017-05-22

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 421: https://openairdocs.org/model/cessna-421.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 DEN03FA025](https://openairdocs.org/ntsb/DEN03FA025), Dec 25, 2002: Cessna 421 (N421D), Akron, CO, destroyed, 2 fatal. Probable cause: The fractured connecting rods and the pilot not maintaining aircraft control following the engine failure. Factors contributing to the accident were the low altitude, the pilot not maintaining…

## 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 20021225034989A](https://openairdocs.org/incident/20021225034989A), Dec 25, 2002: Cessna 421 (N421D), Akron, CO, Destroyed, 2 fatal. (-23) The flight departed on an instrument flight rules (IFR) flight plan from centennial airport (apa) englewood, CO at 0933MST on December 25, 2002. At…

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