# NTSB CHI70DDJ26: Cessna 180, N4930A, Lone Rock, WI, June 28, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 28, 1970
- Place: Lone Rock, WI · LONE ROCK, WI
- Location: 43.1857° N, 90.2013° W: Placed by OpenAirDocs: center of Lone Rock, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.1857&lon=-90.2013&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 22, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 120339
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI70DDJ26
- Page: https://openairdocs.org/ntsb/CHI70DDJ26

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2768  70/6/28    LONE ROCK,WIS       CESSNA 180          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 52, 3255
        TIME - 1122                    N4930A              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - TRI-COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          FRANKFORT,ILL               LONE ROCK,WIS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
                                                                    LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND ALTITUDE
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
           WEATHER - DOWNDRAFT,UPDRAFTS
        FACTOR(S)
           PILOT IN COMMAND - MISUSED OR FAILED TO USE FLAPS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          SCATTERED                                                 10000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      78
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          190                                                       12
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      VFR
        REMARKS- WIND GUSTING 20K. LOW AIRSPEED FULL FLAP APCH.
```

## Aircraft

- Registration: [N4930A](https://openairdocs.org/aircraft/N4930A), registered now, S/N 32327, built 1956 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180](https://openairdocs.org/model/cessna-180) (registry code 2072602) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Tri-County

## Other investigations on N4930A (1)

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 UNK65X1199](https://openairdocs.org/ntsb/UNK65X1199), Dec 31, 1964: Cessna 180 (N4930A), Rice Lake, 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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