# NTSB OAK71FVW11: Hughes 269B, N9526F, Caliente, NV, September 9, 1970

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: September 9, 1970
- Place: Caliente, NV · CALIENTE, NV
- Location: 37.6150° N, 114.5119° W: Placed by OpenAirDocs: center of Caliente, NV, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6150&lon=-114.5119&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor
- Status: Completed, report October 8, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 158898
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71FVW11
- Page: https://openairdocs.org/ntsb/OAK71FVW11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4527   70/9/9  NR.CALIENTE,NEV       HUGHES 269B         CR-  0  1  1  MISCELLANEOUS             COMMERCIAL, FL.INSTR.,
        TIME - 1700                    N9526F              PX-  0  0  0  POLICE PATROL             AGE 34, 2405 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            895 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         CALIENTE,NEV                 LAS VEGAS,NEV
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY LOADED AIRCRAFT-WEIGHT-AND/OR C.G.
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      85
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          270                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- WHEN ACFT LOST ALT PLT SLOWED AIRSPEED,INCRD COLLECTIVE.APRXLY 140LBS OVR GWT FOR 8800FT DENS ALT.
```

## Aircraft

- Registration: N9526F (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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