# NTSB OAK75FVM22: Sud Avn SA341G, N90704, San Jose, CA, February 15, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: February 15, 1975
- Place: San Jose, CA · SAN JOSE, CA
- Location: 37.3394° N, 121.8950° W: Placed by OpenAirDocs: center of San Jose, CA, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.3394&lon=-121.8950&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 3 uninjured
- Status: Completed, report April 2, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 147982
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK75FVM22
- Page: https://openairdocs.org/ntsb/OAK75FVM22

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0315  75/2/15    SAN JOSE,CA         SUD AVN SA341G      CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1806                    N90704              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  AGE 26, 2797 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            72 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - SAN JOSE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          SAN JOSE,CA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR DRIVE SHAFT ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - CHAFED
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- TRANS COWLING RUBBED AGAINST T/R INCLINE SHAFT,RESULTING IN EVENTUAL FATIGUE FAILURE OF SHAFT.
```

## Aircraft

- Registration: [N90704](https://openairdocs.org/deregistered/N90704-1977-11-28), registration cancelled 1977-11-28, S/N 1134 (OpenAirDocs)
- Reported make and model: SUD AVN SA341G
- Registry model: [S N I A S SA341G](https://openairdocs.org/model/s-n-i-a-s-sa341g) (registry code 868016A) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Substantial damage
- Airport: San Jose Muni

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19750215003429A](https://openairdocs.org/incident/19750215003429A), Feb 15, 1975: Aerosp SA341G, San Jose, CA, Substantial damage. Trans cowling rubbed against t/r incline shaft,resulting in eventual fatigue failure of shaft.

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.

---
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.