# N421H: 1973 Cessna 421B, registration cancelled 2013-09-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 13, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cessna 421B](https://openairdocs.org/model/cessna-421b) (registry code 2076014)
- Engine: [Continental GTSIO-520-C](https://openairdocs.org/engine/continental-gtsio-520-c) (registry code 17035)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE), [TCDS E7CE](https://openairdocs.org/tcds/E7CE) (OpenAirDocs)
- Serial number: 421B0516
- Year built: 1973
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: November 20, 1987
- Last registry action: January 20, 2009
- Mode S code: A50005
- Owner when cancelled: [Shanks Ronnie Ray](https://openairdocs.org/faa-owner/SHANKS%20RONNIE%20RAY)
- Location: [Webber Falls, OK](https://openairdocs.org/faa-place/OK/Webber%20Falls)
- Owner type: Individual
- Owner's area on the map: 35.4767° N, 95.1669° W: Placed by OpenAirDocs at the center of ZIP code 74470, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N421H
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=421H
- Page: https://openairdocs.org/deregistered/N421H-2013-09-13

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 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 FTW91FA027](https://openairdocs.org/ntsb/FTW91FA027), Jan 6, 1991: Cessna 421B (N421H), Muskogee, OK, destroyed, 6 fatal. Probable cause: THE PILOT'S FAILURE TO MAINTAIN CONTROL OF THE AIRCRAFT, DUE TO SPATIAL DISORIENTATION. FACTORS RELATED TO THE ACCIDENT WERE: DARKNESS, ADVERSE WEATHER CONDITIONS, AND THE PILOT'S PHYSICAL IMPAIRMENT…

## 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 19910106000179A](https://openairdocs.org/incident/19910106000179A), Jan 6, 1991: Cessna 421 (N421H), Muskogee, OK, Destroyed, 6 fatal. Crashed shortly after takeoff in IMC on a IFR flight plan.

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