# NTSB OAK72DVD02: Schweizer SGS233, N5707S, Milpitas, CA, July 3, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 3, 1971
- Place: Milpitas, CA · MILPITAS, CA
- Location: 37.4331° N, 121.8909° W: Placed by OpenAirDocs: center of Milpitas, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.4331&lon=-121.8909&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 7, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162503
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK72DVD02
- Page: https://openairdocs.org/ntsb/OAK72DVD02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2573   71/7/3    MILPITAS,CALIF      SCHWEIZER SGS233    CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 40, 20 TOTAL
        TIME - 1620                    N5707S              PX-  0  0  0  SOLO                      HOURS, 2 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - FREMONT
        DEPARTURE POINT             INTENDED DESTINATION
          MILPITAS,CALIF              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           COLLIDED WITH: OBJECT                                    LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - NOT ALIGNED WITH RUNWAY/INTENDED LANDING AREA
        REMARKS- RIGHT OF CNTRLN,SLIPPED,OVERCORRECTED.HIT CONSTRUCTION EQPT,STEEP BANK,ABT 200FT LEFT OF RWY.
```

## Aircraft

- Registration: [N5707S](https://openairdocs.org/deregistered/N5707S-2018-01-25), registration cancelled 2018-01-25, S/N 54, built 1967 (OpenAirDocs)
- Reported make and model: SCHWEIZER SGS233
- Registry model: [Schweizer SGS 2-33](https://openairdocs.org/model/schweizer-sgs-2-33) (registry code 8051604) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Fremont

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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