# NTSB CHI75FEP37: Aeronca 11AC, N9428E, Waupaca, WI, January 2, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 2, 1975
- Place: Waupaca, WI · WAUPACA, WI
- Location: 44.3500° N, 89.0700° W: Placed by OpenAirDocs: center of Waupaca, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.3500&lon=-89.0700&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 7, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 146962
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75FEP37
- Page: https://openairdocs.org/ntsb/CHI75FEP37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0061   75/1/2    WAUPACA,WI          AERONCA 11AC        CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N9428E              PX-  0  0  0  DUAL                      AGE 39, 535 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            0 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - WAUPACA MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          WAUPACA,WI                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           COLLIDED WITH: SNOWBANK                                  TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           DUAL STUDENT - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
           DUAL STUDENT - FAILURE TO RELINQUISH CONTROL
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: SNOW WINDROWS
```

## Aircraft

- Registration: [N9428E](https://openairdocs.org/aircraft/N9428E), registered now, S/N 11AC-1066, built 1946 (OpenAirDocs)
- Reported make and model: AERONCA 11AC
- Registry model: [Aeronca 11AC](https://openairdocs.org/model/aeronca-11ac) (registry code 0191102) (OpenAirDocs)
- Registry engine: [Continental A&C65 series](https://openairdocs.org/engine/continental-a-c65-series) (registry code 17003, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Waupaca Muni

## 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 19750102000259A](https://openairdocs.org/incident/19750102000259A), Jan 2, 1975: Blanca 11AC, Waupaca, WI, 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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