# Incident 19840731066319I: Bell 47G5A, Yuma, AZ, July 31, 1984

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 31, 1984, 23:30 local time
- Place: Yuma, AZ
- Damage: Minor damage
- Phase of flight: Pwr Off Run Land (Autorotation
- Operating rules: Agricultural (Part 137)
- Location: 32.7253° N, 114.6244° W: Placed by OpenAirDocs: center of Yuma, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.7253&lon=-114.6244&mi=10
- Aircraft: N7990J, a cancelled registration (https://openairdocs.org/deregistered/N7990J-2014-11-19) (OpenAirDocs)
- Registry model: Bell 47G-5A (registry code 1181034, https://openairdocs.org/model/bell-47g-5a) (OpenAirDocs)
- Registry engine: Lycoming VO-435 series (registry code 41525, https://openairdocs.org/engine/lycoming-vo-435-series) (OpenAirDocs)
- Reported make and model: BELL 47G5A
- Reported engine: LYC VO435B1A
- Fatal injuries: 0
- Pilot flight hours: 5,665 total, 2,959 in this make and model, 175 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19840731066319I

## Narrative

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

ENGINE LOST POWER DUE TO A STUCK VALVE. HARD LANDING IN COTTON FIELD CAUSED MAIN ROTORS TO CHOP OFF THE TAILBOOM.

## Other reports on N7990J (1)

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

- [Accident 19800911042459A](https://openairdocs.org/incident/19800911042459A), Sep 11, 1980: Bell 47G5A (N7990J), Yuma, AZ, Destroyed. Lost rotor RPM on night spray run. Struck tree on emergency landing. Found rotor transmission bearing failure.

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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