# Accident 19790912031439A: Bell 47D1, Ardmore, OK, September 12, 1979

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 12, 1979, 11:50 local time
- Place: Ardmore, OK
- Airport: Downtown
- Damage: Substantial damage
- Phase of flight: Sfl Autorotation
- Operating rules: General operating rules (Part 91)
- Location: 34.1743° N, 97.1436° W: Placed by OpenAirDocs: center of Ardmore, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.1743&lon=-97.1436&mi=10
- Aircraft: N3575, a cancelled registration (https://openairdocs.org/deregistered/N3575-2021-03-06) (OpenAirDocs)
- Registry model: Bell 47D1 (registry code 1180802, https://openairdocs.org/model/bell-47d1) (OpenAirDocs)
- Registry engine: Franklin 6V-335 series (registry code 27039, https://openairdocs.org/engine/franklin-6v-335-series) (OpenAirDocs)
- Reported make and model: BELL 47D1
- Fatal injuries: 0
- Pilot flight hours: 6,497 total, 1,000 in this make and model, 303 in the last 90 days
- NTSB investigation: [NTSB FTW79DPJ37](https://openairdocs.org/ntsb/FTW79DPJ37) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19790912031439A

## Narrative

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

INSTRUCTOR DEMONSTRATING LOW-LEVEL AUTORATION. MADE HARD LANDING.

## 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 FTW79DPJ37](https://openairdocs.org/ntsb/FTW79DPJ37), Sep 12, 1979: Bell 47D1 (N3575), Ardmore, OK, substantial damage

## Other reports on N3575 (4)

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

- [Incident 20160521005389I](https://openairdocs.org/incident/20160521005389I), May 21, 2016: Bell 47D1 (N3575), Navarre, FL, Minor damage. While conducting a sightseeing/tour flight with two passengers over Navarre beach, Florida, the pilot stated as he started his approach to the Navarre beach…
- [Accident 19910724029759A](https://openairdocs.org/incident/19910724029759A), Jul 24, 1991: Bell 47D1 (N3575), Provencal, LA, Substantial damage. Engine quit on aerial fire burn survey. Landed on slope. Rolled over. Departed minimum fuel. Depleted by leaky sump
- [Accident 19870425021269A](https://openairdocs.org/incident/19870425021269A), Apr 25, 1987: Bell 47D1 (N3575), Ardmore, OK, Substantial damage. The helicopter landed hard causing rotor to strike tailboom. Pilot suspected engine problems and autorotated.
- [Accident 19761212037429A](https://openairdocs.org/incident/19761212037429A), Dec 12, 1976: Bell 47D1 (N3575), Vanceville, GA, Substantial damage. Settled into water drg pract hover. Student rotorcraft plt.

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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