# NTSB OAK72DXQ01: Slingsby T-51, N281V, Portola, CA, July 3, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: July 3, 1971
- Place: Portola, CA · PORTOLA, CA
- Location: 39.8208° N, 120.4743° W: Placed by OpenAirDocs: center of Portola, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.8208&lon=-120.4743&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 6, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162548
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK72DXQ01
- Page: https://openairdocs.org/ntsb/OAK72DXQ01

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2523   71/7/3    PORTOLA,CALIF       SLINGSBY T-51       CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 46, 647
        TIME - 1430                    N281V               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 233 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TRUCKEE,CALIF               RAVENSDALE,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: OTHER
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
           AIRFRAME - WINGS: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        REMARKS- ENCNTRD STRONG LIFT,ENTRD CLOUD.LOST CTL DRG ATMTD RCVRY,SPOILERS NOT USED.WING SEPD.PLT PRCHTD.
```

## Aircraft

- Registration: N281V (not matched to a registry record)
- Reported make and model: SLINGSBY T-51
- Category: Glider
- Engines: none
- Damage: Destroyed

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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