# N421SD: 1973 Cessna 421B, registration cancelled 2005-03-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 21, 2005
- Status when cancelled: Triennial form not returned
- Airframe: [Cessna 421B](https://openairdocs.org/model/cessna-421b) (registry code 2076014)
- Engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE), [TCDS E5CE](https://openairdocs.org/tcds/E5CE) (OpenAirDocs)
- Serial number: 421B0386
- Year built: 1973
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: May 30, 1973
- Certificate issued: May 11, 1993
- Last registry action: December 16, 2003
- Mode S code: A500EA
- Owner when cancelled: [Georgia Cumberland Con Of Seventh D](https://openairdocs.org/faa-owner/GEORGIA%20CUMBERLAND%20CON%20OF%20SEVENTH%20D)
- Location: [Calhoun, GA](https://openairdocs.org/faa-place/GA/Calhoun)
- Owner type: Corporation
- Owner's area on the map: 34.4998° N, 84.9332° W: Placed by OpenAirDocs: center of Calhoun, GA, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N421SD
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=421SD
- Page: https://openairdocs.org/deregistered/N421SD-2005-03-21

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 421B: https://openairdocs.org/model/cessna-421b.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 ATL05FA032](https://openairdocs.org/ntsb/ATL05FA032), Dec 2, 2004: Cessna 421B (N421SD), Apison, TN, destroyed, 5 fatal. Probable cause: The pilot's improper identification of a partial loss of engine power on initial takeoff climb resulting in a collision with trees and the ground. A factor was a partial failure of the left engine…

## 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 20041202034429A](https://openairdocs.org/incident/20041202034429A), Dec 2, 2004: Cessna 421B (N421SD), Apison, TN, Destroyed, 5 fatal. (-23) On December 2, 2004 at 1324 east a Cessna 421B, was departing on runway 03 at collegedale municipal airport. The aircraft altitude was between 200 to 300…

## Other aircraft with N421SD

- [Registered now](https://openairdocs.org/aircraft/N421SD): Karim Kanfoudi SLING TSI, S/N 422SK
- [Cancelled 2017-10-31](https://openairdocs.org/deregistered/N421SD-2017-10-31): Cessna 421B, S/N 421B0127, built 1971. Registration expired, pending cancellation. Owner: [S And D Aviation LLC](https://openairdocs.org/faa-owner/S%20AND%20D%20AVIATION%20LLC), [Columbus, MS](https://openairdocs.org/faa-place/MS/Columbus)

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