# N421HC: 1971 Cessna 421B, registration cancelled 2014-10-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 6, 2014
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cessna 421B](https://openairdocs.org/model/cessna-421b) (registry code 2076014)
- Engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE), [TCDS E8CE](https://openairdocs.org/tcds/E8CE) (OpenAirDocs)
- Serial number: 421B-0116
- Year built: 1971
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: March 27, 1971
- Certificate issued: January 7, 1985
- Last registry action: February 5, 1988
- Mode S code: A50008
- Owner when cancelled: [Grihalva John Martin](https://openairdocs.org/faa-owner/GRIHALVA%20JOHN%20MARTIN)
- Location: [Las Vegas, NV](https://openairdocs.org/faa-place/NV/Las%20Vegas)
- Owner type: Individual
- Owner's area on the map: 36.1316° N, 115.1699° W: Placed by OpenAirDocs at the center of ZIP code 89109, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N421HC
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=421HC
- Page: https://openairdocs.org/deregistered/N421HC-2014-10-06

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 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 FTW79IA103](https://openairdocs.org/ntsb/FTW79IA103), Aug 30, 1979: Cessna 421B (N421HC), Friendswood, TX, incident, minor damage

## FAA accident and incident reports (2)

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.

- [Incident 19850404026769I](https://openairdocs.org/incident/19850404026769I), Apr 4, 1985: Cessna 421B (N421HC), Fresno, CA, Minor damage. Runway closed and marked with yellow x. aircraft landed and taxied over plywood x picking up a nail in tire.
- [Incident 19790830033379I](https://openairdocs.org/incident/19790830033379I), Aug 30, 1979: Cessna 421B (N421HC), Friendswood, TX, Minor damage. Experienced engine fire on takeoff, landed safely. Found improperly installed oil cooler leaking on exhaust.

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