# Accident 19770420007379A: Cessna 210K, Ronkonkoma, NY, April 20, 1977

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 20, 1977
- Place: Ronkonkoma, NY
- Airport: Islip Macarthur
- Damage: Substantial damage
- Phase of flight: Final Approach
- Location: 40.8035° N, 73.1245° W: Placed by OpenAirDocs: center of Ronkonkoma, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.8035&lon=-73.1245&mi=10
- Aircraft: N9420M, registered now (https://openairdocs.org/aircraft/N9420M) (OpenAirDocs)
- Registry model: Cessna 210K (registry code 2073446, https://openairdocs.org/model/cessna-210k) (OpenAirDocs)
- Registry engine: Continental IO-520 series (registry code 17032, https://openairdocs.org/engine/continental-io-520-series) (OpenAirDocs)
- Reported make and model: CESSNA 210K
- Fatal injuries: 0
- Pilot flight hours: 2,094 total, 141 in this make and model, 36 in the last 90 days
- NTSB investigation: [NTSB NYC77FHJ15](https://openairdocs.org/ntsb/NYC77FHJ15) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19770420007379A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

NOSE GR PREV DMG DRG GND ACDT.PLT SECURED ENG ONFINAL,ENTERED HI SINK RATE,UN CK.

## The NTSB's investigation of this event (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 NYC77FHJ15](https://openairdocs.org/ntsb/NYC77FHJ15), Apr 20, 1977: Cessna 210K (N9420M), Ronkonkoma, NY, substantial damage

## Other reports on N9420M (3)

Matched to the same aircraft by N-number and date.

- [Accident 20260901012499A](https://openairdocs.org/incident/20260901012499A), Sep 1, 2026: Cessna 210K (N9420M), Dawson Springs, KY, Substantial damage. Pilot reported after departing airport (2I0), while climbing through 4500 feet he heard a loud bang, the engine started running rough and begin to shake, lost…
- [Incident 19780707042719I](https://openairdocs.org/incident/19780707042719I), Jul 7, 1978: Cessna 210K (N9420M), Santa Monica, CA. Pilot being directed to parking spot by spouse. Who got into the propeller during shut down. Aircraft not moving.
- [Accident 19730927029819A](https://openairdocs.org/incident/19730927029819A), Sep 27, 1973: Cessna 210K (N9420M), Gerlach, NV, Substantial damage

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. For accidents, the NTSB's own investigation is the fuller record.

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