# N550T: Cessna 421, registration cancelled 1974-02-19

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 19, 1974
- Status when cancelled: Valid registration
- Airframe: [Cessna 421](https://openairdocs.org/model/cessna-421) (registry code 2076010)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE) (OpenAirDocs)
- Serial number: 4210038
- Type of aircraft: Fixed wing multi engine
- Certificate issued: July 12, 1973
- Mode S code: A70114
- Owner when cancelled: [Combs Gates Indianapolis Inc](https://openairdocs.org/faa-owner/COMBS%20GATES%20INDIANAPOLIS%20INC)
- Location: [Indianapolis, IN](https://openairdocs.org/faa-place/IN/Indianapolis)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N550T
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=550T
- Page: https://openairdocs.org/deregistered/N550T-1974-02-19

From the FAA registry file of November 5, 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 CHI74AC042](https://openairdocs.org/ntsb/CHI74AC042), Nov 14, 1973: Cessna 421 (N550T), Plymouth, IN, destroyed, 5 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 19731114041109A](https://openairdocs.org/incident/19731114041109A), Nov 14, 1973: Cessna 421 (N550T), Plymouth, IN, Destroyed, 4 fatal. Dscndd blo mda.

## Other aircraft with N550T

- [Registered now](https://openairdocs.org/aircraft/N550T): Cessna 525B, S/N 525B0226, built 2008

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