# NTSB LAX70FUG45: Claplane FC-1, N74P, Ontario, CA, June 12, 1970

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 12, 1970
- Place: Ontario, CA · ONTARIO, CA
- Location: 34.0633° N, 117.6509° W: Placed by OpenAirDocs: center of Ontario, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.0633&lon=-117.6509&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 30, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 118457
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX70FUG45
- Page: https://openairdocs.org/ntsb/LAX70FUG45

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2545  70/6/12    ONTARIO,CALIF       CLAPLANE FC-1       CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 42, 523
        TIME - 1347                    N74P                PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 488 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - ONTARIO INTL
        DEPARTURE POINT             INTENDED DESTINATION
          CORONA,CALIF                ONTARIO,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            LANDING: ROLL
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
        PROBABLE CAUSE(S)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: RUDDER AND RUDDER TAB CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - POOR WELD
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: OTHER
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          SCATTERED                                                 2500
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     RIGHT QUARTERING HEAD WIND 023-067 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           66                                                      310
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           19                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- R RUDDER CABLE ATTACH BRACKET FAILED AT WELD. QUARTERING X-WIND GUSTING TO 19K. ACFT TURNED OVER.
```

## Aircraft

- Registration: [N74P](https://openairdocs.org/aircraft/N74P), registered now, S/N L-7, built 1958 (OpenAirDocs)
- Reported make and model: CLAPLANE FC-1
- Registry model: [Clayplane FC-1](https://openairdocs.org/model/clayplane-fc-1) (registry code 05601E7) (OpenAirDocs)
- Registry engine: [Continental C85 series](https://openairdocs.org/engine/continental-c85-series) (registry code 17008, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Ontario Intl

## Other investigations on N74P (1)

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 UNK64X1667](https://openairdocs.org/ntsb/UNK64X1667), May 8, 1964: Miniplane (N74P), Yucca Valley, CA, 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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