# NTSB MKC77FER34: Schweizer SGU2, N2717Z, Cloquet, MN, April 17, 1977

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: April 17, 1977
- Place: Cloquet, MN · CLOQUET, MN
- Location: 46.7216° N, 92.4594° W: Placed by OpenAirDocs: center of Cloquet, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.7216&lon=-92.4594&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report July 15, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157958
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC77FER34
- Page: https://openairdocs.org/ntsb/MKC77FER34

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1140  77/4/17    CLOQUET,MN          SCHWEIZER SGU2      CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 52, 139
        TIME - 1630                    N2717Z              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 4 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - CLOQUER,MN
        DEPARTURE POINT             INTENDED DESTINATION
          CLOQUET,MN                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL
        REMARKS- GLIDER ENTERED A SERIES OF PITCH OSCILLATIONS DURING TOW. GLIDER RELEASED AND CRASHED INTO GROUND
```

## Aircraft

- Registration: [N2717Z](https://openairdocs.org/aircraft/N2717Z), registered now, S/N 170, built 1964 (OpenAirDocs)
- Reported make and model: SCHWEIZER SGU2
- Registry model: [Schweizer SGU 2-22EK](https://openairdocs.org/model/schweizer-sgu-2-22ek) (registry code 8050614) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Cloquer,Mn

## 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 19770417009529A](https://openairdocs.org/incident/19770417009529A), Apr 17, 1977: Scwzer SGU222EK, Cloquet, MN, Substantial damage. Glider entered a series of pitch oscillations during tow. Glider released and crashed into ground

## Other investigations on N2717Z (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 MIA95LA225](https://openairdocs.org/ntsb/MIA95LA225), Sep 17, 1995: Schweizer SGU-2-22K (N2717Z), Picayune, MS, destroyed. Probable cause: The pilot-in-command's disregard of a weather forecast and flight into known adverse weather condition (thunderstorm). The thunderstorm, and associated wind gusts, were factors.

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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