# Accident 19900801029489A: Bell 47G3B1, Hanson, MA, August 1, 1990

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 1, 1990, 07:30 local time
- Place: Hanson, MA
- Damage: Substantial damage
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: Agricultural (Part 137)
- Operator: NNRG
- Location: 42.0650° N, 70.8498° W: Placed by OpenAirDocs: center of Hanson, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.0650&lon=-70.8498&mi=10
- Aircraft: N34691, a cancelled registration (https://openairdocs.org/deregistered/N34691-1993-07-14) (OpenAirDocs)
- Registry model: Bell 47G-3B-1 (registry code 1181028, https://openairdocs.org/model/bell-47g-3b-1) (OpenAirDocs)
- Reported make and model: BELL 47G3B1
- People aboard: 1
- Fatal injuries: 0
- NTSB investigation: [NTSB NYC90DNA04](https://openairdocs.org/ntsb/NYC90DNA04) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19900801029489A

## Narrative

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

TAIL ROTOR DRIVE SHAFT SHEARED DURING SPRAY RUN,AUTOROTATED TOO HARD LANDING IN CRANBERRY BOG.

## 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 NYC90DNA04](https://openairdocs.org/ntsb/NYC90DNA04), Aug 1, 1990: Bell 47G-3B-1 (N34691), Hanson, MA, substantial damage. Probable cause: THE PILOT'S LOSS OF CONTROL OF THE HELICOPTER DUE TO THE FAILURE OF THE TAIL ROTOR DRIVE SHAFT.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.