# NTSB OAK74FVG09: Hughes 269, N8759F, Sloughhouse, CA, September 9, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 9, 1973
- Place: Sloughhouse, CA · SLOUGHHOUSE, CA
- Location: 38.4957° N, 121.1938° W: Placed by OpenAirDocs: center of Sloughhouse, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.4957&lon=-121.1938&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 25, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 188662
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74FVG09
- Page: https://openairdocs.org/ntsb/OAK74FVG09

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2635   73/9/9    SLOUGHHOUSE,CALIF   HUGHES 269          CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 0935                    N8759F              PX-  0  0  0  DUAL                      AGE 45, 2769 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            1983 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - RANCHO MURIETA
        DEPARTURE POINT             INTENDED DESTINATION
          FAIR OAKS,CALIF             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: HOVERING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           DUAL STUDENT - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           DUAL STUDENT - IMPROPER OPERATION OF FLIGHT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - GROUND RESONANCE
        FACTOR(S)
           DUAL STUDENT - LACK OF FAMILIARITY WITH AIRCRAFT
           DUAL STUDENT - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        REMARKS- STDNT PLT CLSD THROTTLE,BOTTOMED COLLECTIVE ATMTNG TO INCRS RPM.RESONANCE POST-IMPACT.
```

## Aircraft

- Registration: [N8759F](https://openairdocs.org/deregistered/N8759F-2014-10-01), registration cancelled 2014-10-01, S/N 0083 (OpenAirDocs)
- Reported make and model: HUGHES 269
- Registry model: [Hughes 269A](https://openairdocs.org/model/hughes-269a) (registry code 4470402) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed
- Airport: Rancho Murieta

## 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 19730909027889A](https://openairdocs.org/incident/19730909027889A), Sep 9, 1973: Hughes 269A, Sloughhouse, CA, Substantial damage. Stdnt plt clsd throttle,bottomed collective atmtng to incrs RPM.resonance post-impact.

## Other investigations on N8759F (2)

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 OAK71FVM50](https://openairdocs.org/ntsb/OAK71FVM50), Apr 19, 1971: Hughes 269A (N8759F), San Jose, CA, substantial damage
- [NTSB NYC69F0117](https://openairdocs.org/ntsb/NYC69F0117), Aug 3, 1968: Hughes 269A (N8759F), N.Tonawanda, NY, substantial damage

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.

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