# NTSB CHI79DEP02: Thorp T-18, N493TK, Middleton, WI, October 6, 1978

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: October 6, 1978
- Place: Middleton, WI · MIDDLETON, WI
- Location: 43.1070° N, 89.5063° W: Placed by OpenAirDocs: center of Middleton, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.1070&lon=-89.5063&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report January 30, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 139204
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI79DEP02
- Page: https://openairdocs.org/ntsb/CHI79DEP02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3614   78/10/6   MIDDLETON,WI        THORP T-18          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 64, 755
        TIME - 1515                    N493TK              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 126 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - MOREY
        DEPARTURE POINT             INTENDED DESTINATION
          COLUMBUS,NE                 MIDDLETON,WI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: OBJECT                                    LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                      5000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     HEAD WIND 338-022 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          320                                                       15
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      VFR
        REMARKS- WINGTIP COLLIDED WITH SOD ON SIDE OF R/W.WIND GUSTING TO 30KTS.
```

## Aircraft

- Registration: [N493TK](https://openairdocs.org/deregistered/N493TK-2015-04-24), registration cancelled 2015-04-24, S/N 493, built 1977 (OpenAirDocs)
- Reported make and model: THORP T-18
- Registry model: [Gautier THORP T-18](https://openairdocs.org/model/gautier-thorp-t-18) (registry code 8951062) (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: Destroyed
- Airport: Morey

## 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 19781006033959A](https://openairdocs.org/incident/19781006033959A), Oct 6, 1978: Kinner SPORTSTERK, Middleton, WI, Substantial damage. Wingtip collided with sod on side of r/w.wind gusting to 30KTS.

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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