# NTSB LAX71FUG97: Fournier RF-4D, N7726, Chino, CA, June 26, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 26, 1971
- Place: Chino, CA · CHINO, CA
- Location: 33.9763° N, 117.6745° W: Placed by OpenAirDocs: center of Chino, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.9763&lon=-117.6745&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 3, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161709
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX71FUG97
- Page: https://openairdocs.org/ntsb/LAX71FUG97

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2498  71/6/26    CHINO,CALIF         FOURNIER RF-4D      CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 36, 300
        TIME - 2010                    N7726               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 0 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - CHINO
        DEPARTURE POINT             INTENDED DESTINATION
          CHINO,CALIF                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        REMARKS- PWRD SAILPLANE,RETRACTABLE WHEEL.HIT RWY HARD AFTR APPLYING SPOILER.1ST FLT.BRIEFED BY OWNERS.
```

## Aircraft

- Registration: N7726 (not matched to a registry record)
- Reported make and model: FOURNIER RF-4D
- Category: Glider, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Chino

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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