# NTSB CHI79FEP06: Grumman AA1-A, N9424L, Milwaukee, WI, November 7, 1978

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: November 7, 1978
- Place: Milwaukee, WI · MILWAUKEE, WI
- Location: 43.0389° N, 87.9065° W: Placed by OpenAirDocs: center of Milwaukee, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.0389&lon=-87.9065&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report February 9, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 138382
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI79FEP06
- Page: https://openairdocs.org/ntsb/CHI79FEP06

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3727   78/11/7   MILWAUKEE,WI        GRUMMAN AA1-A       CR-  0  1  0  NONCOMMERCIAL             STUDENT, AGE 57, 67 TOTAL
        TIME - 1706                    N9424L              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 45 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - GENERAL MITCHELL
        DEPARTURE POINT             INTENDED DESTINATION
          MILWAUKEE,WI                MILWAUKEE,WI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - POORLY PLANNED APPROACH
         FIRE AFTER IMPACT
        REMARKS- CONTROLLERS STATED PLT APPEARED CONFUSED IN PATTERN SO CLEARED TO LAND ANY RWY.
```

## Aircraft

- Registration: [N9424L](https://openairdocs.org/deregistered/N9424L-1982-04-08), registration cancelled 1982-04-08, S/N AA1A-0224 (OpenAirDocs)
- Reported make and model: GRUMMAN AA1-A
- Registry model: [American AA-1A](https://openairdocs.org/model/american-aa-1a) (registry code 0630710) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: General Mitchell

## 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 19781107040649A](https://openairdocs.org/incident/19781107040649A), Nov 7, 1978: Gulstm AA1/, Milwaukee,Wi, WI, Substantial damage. Controllers stated plt appeared confused in pattern so cleared to lad any rwy.

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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