# Accident 19730404007579A: Bell 47G, San Antonio, TX, April 4, 1973

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 4, 1973
- Place: San Antonio, TX
- Airport: Stinson
- Damage: Substantial damage
- Phase of flight: Hovering
- Location: 29.3370° N, 98.4710° W: Placed by OpenAirDocs at STINSON MUNI (SSF), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.3370&lon=-98.4710&mi=10
- Aircraft: N2772, a cancelled registration (https://openairdocs.org/deregistered/N2772-2014-09-25) (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
- Fatal injuries: 0
- Pilot flight hours: 220 total, 21 in this make and model, 38 in the last 90 days
- NTSB investigation: [NTSB FTW73DRG66](https://openairdocs.org/ntsb/FTW73DRG66) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19730404007579A

## Narrative

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

TRANSMISSION SEIZED DUE PINION GR FAILURE IN UPPER PLANETARY SYS.TAIL ROTOR DRIVE SHEARED.

## 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 FTW73DRG66](https://openairdocs.org/ntsb/FTW73DRG66), Apr 4, 1973: Bell 47G (N2772), San Antonio, TX, substantial damage

## Other reports on N2772 (1)

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

- [Accident 19761012032549A](https://openairdocs.org/incident/19761012032549A), Oct 12, 1976: Bell 47G (N2772), Kerrville, TX, Substantial damage. Operation to lay rope across canyon using reel, speed became excessive for rope to unwind.

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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