# Accident 19740909043559A: Bell 47J2A, Ripon, CA, September 9, 1974

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 9, 1974
- Place: Ripon, CA
- Damage: Destroyed
- Phase of flight: Low Level Operations
- Location: 37.7420° N, 121.1304° W: Placed by OpenAirDocs: center of Ripon, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7420&lon=-121.1304&mi=10
- Aircraft: N3072G, a cancelled registration (https://openairdocs.org/deregistered/N3072G-1975-03-26) (OpenAirDocs)
- Registry model: Bell 47J-2A (registry code 1181106, https://openairdocs.org/model/bell-47j-2a) (OpenAirDocs)
- Reported make and model: BELL 47J2A
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 4,700 total, 124 in this make and model, 75 in the last 90 days
- NTSB investigation: [NTSB OAK75AP011](https://openairdocs.org/ntsb/OAK75AP011) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19740909043559A

## Narrative

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

TAIL ROTOR DRIVE SPLINED COUPLING FAILED.ACFT SPUN TO R AT LOW ALT.

## 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 OAK75AP011](https://openairdocs.org/ntsb/OAK75AP011), Sep 9, 1974: Bell 47J-2A (N3072G), Ripon, CA, destroyed, 2 fatal

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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