# Accident 19791001040389A: Hynes B2B, Guymon, OK, October 1, 1979

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: October 1, 1979, 17:00 local time
- Place: Guymon, OK
- Damage: Substantial damage
- Phase of flight: To Vertical (Helicopter Only)
- Operating rules: General operating rules (Part 91)
- Location: 36.6901° N, 101.4770° W: Placed by OpenAirDocs: center of Guymon, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.6901&lon=-101.4770&mi=10
- Aircraft: N2191U, registered now (https://openairdocs.org/aircraft/N2191U) (OpenAirDocs)
- Registry model: Brantly B-2B (registry code 1440506, https://openairdocs.org/model/brantly-b-2b) (OpenAirDocs)
- Registry engine: Lycoming O&VO-360 series (registry code 41514, https://openairdocs.org/engine/lycoming-o-vo-360-series) (OpenAirDocs)
- Reported make and model: HYNES B2B
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 527 total, 64 in this make and model, 124 in the last 90 days
- NTSB investigation: [NTSB FTW80DPJ01](https://openairdocs.org/ntsb/FTW80DPJ01) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19791001040389A

## Narrative

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

TAIL ROTOR SHAFT COUPLING BROKE ON INITIAL CLIMB FROM HOVER. HELICOPTER ROLLED OVER ON EMERGENCY 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 FTW80DPJ01](https://openairdocs.org/ntsb/FTW80DPJ01), Oct 1, 1979: Brantly B-2B (N2191U), Guymon, OK, substantial damage

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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