# NTSB CHI72DEP17: Mooney M20, N5247B, Hayward, WI, September 28, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 28, 1971
- Place: Hayward, WI · HAYWARD, WI
- Location: 46.0066° N, 91.4897° W: Placed by OpenAirDocs: center of Hayward, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.0066&lon=-91.4897&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report April 6, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 163412
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI72DEP17
- Page: https://openairdocs.org/ntsb/CHI72DEP17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3176  71/9/28    HAYWARD,WIS         MOONEY M20          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 40, 2100
        TIME - 1422                    N5247B              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 800 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - HAYWARD
        DEPARTURE POINT             INTENDED DESTINATION
          HAYWARD,WIS                 MILWAUKEE,WIS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - RETRACTED GEAR PREMATURELY
```

## Aircraft

- Registration: [N5247B](https://openairdocs.org/deregistered/N5247B-2021-04-03), registration cancelled 2021-04-03, S/N 1110, built 1957 (OpenAirDocs)
- Reported make and model: MOONEY M20
- Registry model: [Mooney M20](https://openairdocs.org/model/mooney-m20) (registry code 5870202) (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: Hayward

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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