# Accident 19831221062989A: Bell 47G, El Cajon, CA, December 21, 1983

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 21, 1983, 13:25 local time
- Place: El Cajon, CA
- Airport: Gillespie
- Damage: Substantial damage
- Phase of flight: Sfl Autorotation
- Operating rules: General operating rules (Part 91)
- Location: 32.7897° N, 116.9604° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=32.7897&lon=-116.9604&mi=10
- Aircraft: N4475, a cancelled registration (https://openairdocs.org/deregistered/N4475-2012-11-29) (OpenAirDocs)
- Registry model: Bell 47G (registry code 1181002, https://openairdocs.org/model/bell-47g) (OpenAirDocs)
- Registry engine: Franklin 6V4 series (registry code 27033, https://openairdocs.org/engine/franklin-6v4-series) (OpenAirDocs)
- Reported make and model: BELL 47G
- Reported engine: FRNKLN 6V4200C32
- Fatal injuries: 0
- Pilot flight hours: 2,811 total, 411 in this make and model, 200 in the last 90 days
- NTSB investigation: [NTSB LAX84LA108](https://openairdocs.org/ntsb/LAX84LA108) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19831221062989A

## Narrative

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

INSTRUCTOR INCORRECTLY USED FORWARD CYCLIC ON PRACTICE HOVER AUTOROTATION.HELICOPTER ENTERED DYNAMIC ROLL CONDITION

## 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 LAX84LA108](https://openairdocs.org/ntsb/LAX84LA108), Dec 21, 1983: Bell 47G (N4475), El Cajon, CA, substantial damage

## Other reports on N4475 (1)

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

- [Accident 19780325004589A](https://openairdocs.org/incident/19780325004589A), Mar 25, 1978: Bell 47G (N4475), Torrance, CA, Substantial damage. Scenic flt operation

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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