# NTSB OAK76AP042: Slingsby T51, N6569C, Milpitas, CA, February 7, 1976

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: February 7, 1976
- 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: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report March 3, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 152382
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK76AP042
- Page: https://openairdocs.org/ntsb/OAK76AP042

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0159   76/2/7  NR.MILPITAS,CA        SLINGSBY T51        CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 55, 614
        TIME - 1415                    N6569C              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 3 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SKY SAILING
        DEPARTURE POINT             INTENDED DESTINATION
         MILPITAS,CA                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: SPIN                                              IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           WEATHER - DOWNDRAFT,UPDRAFTS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        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                                                      53
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           25                                                       22
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- SINGLE WHEEL SAILPLANE.
```

## Aircraft

- Registration: [N6569C](https://openairdocs.org/deregistered/N6569C-1976-04-01), registration cancelled 1976-04-01, S/N 1440 (OpenAirDocs)
- Reported make and model: SLINGSBY T51
- Registry model: [Slingsby DART T.51](https://openairdocs.org/model/slingsby-dart-t-51) (registry code 8320602) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Destroyed
- Airport: Sky Sailing

## 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 19760207002179A](https://openairdocs.org/incident/19760207002179A), Feb 7, 1976: Slnsby T51, Milpitas, CA, Destroyed. Single wheel sailplane.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.