# Accident 19911127053719A: Aerosp SA316B, Bridgeport, CA, November 27, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: November 27, 1991, 23:21 local time
- Place: Bridgeport, CA
- Damage: Destroyed
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: Air taxi and commuter (Part 135)
- Operator: DYRA
- Location: 38.2706° N, 119.3297° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=38.2706&lon=-119.3297&mi=10
- Aircraft: N146RM, a cancelled registration (https://openairdocs.org/deregistered/N146RM-1997-10-27) (OpenAirDocs)
- Registry model: Aerospatiale SA316B ALOUETTE III (registry code 8680515, https://openairdocs.org/model/aerospatiale-sa316b-alouette-iii) (OpenAirDocs)
- Reported make and model: AEROSP SA316B
- Reported engine: TMECA ARTOUSTE3B
- People aboard: 4
- Fatal injuries: 4
- Pilot flight hours: 11,095 total, 2,163 in this make and model, 76 in the last 90 days
- NTSB investigation: [NTSB LAX92FA054](https://openairdocs.org/ntsb/LAX92FA054) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19911127053719A

## Narrative

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

EN ROUTE TAIL ROTOR DRIVE SHAFT BROKE IN TWO PLACES. MAIN ROTORS CHOPPED TAIL IN SPIN PRIOR TO INVERTED CRASH.

## 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 LAX92FA054](https://openairdocs.org/ntsb/LAX92FA054), Nov 28, 1991: Aerospatiale SA 316B (N146RM), Bridgeport, CA, destroyed, 4 fatal. Probable cause: FAILURE OF THE HELICOPTER'S TAIL ROTOR DRIVE SHAFT AND DRIVE SHAFT BEARING DUE TO UNDETERMINED REASON(S).

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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