# NTSB CHI76AC059: Boeing A75N1, N56945, Lake Geneva, WI, May 4, 1976

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: May 4, 1976
- Place: Lake Geneva, WI · LAKE GENEVA, WI
- Location: 42.5825° N, 88.4268° W: Placed by OpenAirDocs: center of Lake Geneva, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.5825&lon=-88.4268&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report July 13, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 153602
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI76AC059
- Page: https://openairdocs.org/ntsb/CHI76AC059

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2034   76/5/4    LAKE GENEVA,WI      BOEING A75N1        CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, AGE 36, 9034
        TIME - 0850                    N56945              PX-  0  0  0  PRACTICE                  TOTAL HOURS, 30 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          LYONS,WI                    HARVARD,IL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: SPIN                                              IN FLIGHT: ACROBATICS
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
         FIRE AFTER IMPACT
```

## Aircraft

- Registration: [N56945](https://openairdocs.org/deregistered/N56945-1976-07-22), registration cancelled 1976-07-22, S/N 75-3986 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing A75N1](https://openairdocs.org/model/boeing-a75n1) (registry code 1380165) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19760504020239A](https://openairdocs.org/incident/19760504020239A), May 4, 1976: Boeing A75N1, Lake Geneva, IL, Destroyed

## Other investigations on N56945 (2)

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 OAK69F0263](https://openairdocs.org/ntsb/OAK69F0263), Apr 9, 1969: Boeing A75N1 (N56945), Minden, NV, substantial damage
- [NTSB OAK67D0320](https://openairdocs.org/ntsb/OAK67D0320), May 2, 1967: Boeing A75N1 (N56945), Minden, NV, 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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