# NTSB MKC78FER77: Cassutt 3-M, N71MM, Cloquet, MN, July 25, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 25, 1978
- 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: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 9, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 140345
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC78FER77
- Page: https://openairdocs.org/ntsb/MKC78FER77

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3821  78/7/25    CLOQUET,MN          CASSUTT 3-M         CR-  0  0  1  MISCELLANEOUS             PRIVATE, AGE 44, 703
        TIME - 1800                    N71MM               PX-  0  0  0  TEST                      TOTAL HOURS, 0 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - CARLTON COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          CLOQUET,MN                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: DITCHES                                   LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           POWERPLANT - ENGINE STRUCTURE: PISTON,PISTON RINGS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
```

## Aircraft

- Registration: [N71MM](https://openairdocs.org/aircraft/N71MM), registered now, S/N 1978-001, built 1978 (OpenAirDocs)
- Reported make and model: CASSUTT 3-M
- Registry model: [Melanson CASSUTT III M](https://openairdocs.org/model/melanson-cassutt-iii-m) (registry code 1970349) (OpenAirDocs)
- Registry engine: [Continental O-200 series](https://openairdocs.org/engine/continental-o-200-series) (registry code 17402, 4 cycle) (OpenAirDocs)
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Carlton County

## 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 19780725038519A](https://openairdocs.org/incident/19780725038519A), Jul 25, 1978: Kinner SPORTSTERK, Cloquet, MN, Substantial damage

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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