# NTSB DEN69F0148: Hughes 269B, N9365F, Tremonton, UT, November 23, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 23, 1968
- Place: Tremonton, UT · TREMONTON, UT
- Location: 41.7170° N, 112.1873° W: Placed by OpenAirDocs: center of Tremonton, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.7170&lon=-112.1873&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 4, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 107380
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN69F0148
- Page: https://openairdocs.org/ntsb/DEN69F0148

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4249  68/11/23   TREMONTON,UT        HUGHES 269B         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 19, 184
        TIME - 1420                    N9365F              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 139 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: MAIN ROTOR DRIVE SHAFT
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: SUBSTANDARD QUALITY CONTROL
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- AIRWORTHINESS DIRECTIVE 68-20-3 NOT COMPLIED WITH DUE TO IMPROPER P/N ON DRIVE SHAFT.
```

## Aircraft

- Registration: N9365F (not matched to a registry record)
- Reported make and model: HUGHES 269B
- Category: Helicopter
- Engines: reciprocating
- Damage: 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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