# NTSB CHI79DEP50: Cessna 172H, N80921, Boulder Jct, WI, June 7, 1979

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 7, 1979
- Place: Boulder Jct, WI · BOULDER JCT, WI
- Location: 46.1148° N, 89.6544° W: Placed by OpenAirDocs: center of Boulder Junction, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.1148&lon=-89.6544&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report December 21, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135464
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI79DEP50
- Page: https://openairdocs.org/ntsb/CHI79DEP50

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2690   79/6/7    BOULDER JCT,WI      CESSNA 172H         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 48, 314
        TIME - 0930                    N80921              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 107 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BOULDER JCT SPB
        DEPARTURE POINT             INTENDED DESTINATION
          BOULDER JCT,WI              MADISON,WI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLISION WITH GROUND/WATER: CONTROLLED                  TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           POWERPLANT - ENGINE STRUCTURE: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MISSING
           POWERPLANT - FUEL SYSTEM: CARBURETOR
           MISCELLANEOUS ACTS,CONDITIONS - LOOSE,PART/FITTING
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- SEAPLANE BASE.ENGINE INTAKE SEAL MISSING ON #6 CYL.PRIMARY VENTURI LOOSE.
```

## Aircraft

- Registration: [N80921](https://openairdocs.org/aircraft/N80921), registered now, S/N 17266803, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA 172H
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Boulder Jct Spb

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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