# NTSB OAK74DVA65: Schweizer SGS126, N7753S, Del Piedra, CA, May 12, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 12, 1974
- Place: Del Piedra, CA · DEL PIEDRA, CA
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 11, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 124419
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74DVA65
- Page: https://openairdocs.org/ntsb/OAK74DVA65

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1102  74/5/12    DEL PIEDRA,CALIF    SCHWEIZER SGS126    CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 56, 496
        TIME - 1425                    N7753S              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 9 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - WONDER VALLEY
        DEPARTURE POINT             INTENDED DESTINATION
          DEL PIEDRA,CALIF            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE,SPEED,ALTITUDE OR CLEARANCE
           WEATHER - DOWNDRAFT,UPDRAFTS
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        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                                                      80
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          320                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- ENCNTRD HEAVY SINK RATE ON DOWNWIND.IMMEDIATELY HEADED FOR RWY.HIT TREES 300 YDS SHORT.
```

## Aircraft

- Registration: [N7753S](https://openairdocs.org/deregistered/N7753S-2017-02-04), registration cancelled 2017-02-04, S/N 453, built 1969 (OpenAirDocs)
- Reported make and model: SCHWEIZER SGS126
- Registry model: [Schweizer SGS 1-26D](https://openairdocs.org/model/schweizer-sgs-1-26d) (registry code 8050122) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Wonder Valley

## 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 19740512010449A](https://openairdocs.org/incident/19740512010449A), May 12, 1974: Scwzer SGS126D, Del Piedra, CA, Substantial damage. Encntrd heavy sink rate on downwind. Immediately headed for rwy. Hit trees 300 yds short.

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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