# NTSB CHI71AC062: Cessna 172K, N46654, Sussex, WI, March 9, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 9, 1971
- Place: Sussex, WI · SUSSEX, WI
- Location: 43.1349° N, 88.2260° W: Placed by OpenAirDocs: center of Sussex, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.1349&lon=-88.2260&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report November 4, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 160203
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71AC062
- Page: https://openairdocs.org/ntsb/CHI71AC062

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0310   71/3/9    SUSSEX,WIS          CESSNA 172H         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 58, 490
        TIME - 1505                    N8031L              PX-  0  0  1  BUSINESS                  TOTAL HOURS, 343 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  2                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - WAUKESHA
        DEPARTURE POINT             INTENDED DESTINATION
          MILWAUKEE,WIS               OWATONNA,MINN
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - BY LOCAL CONTROL               CONTROLLED/UNCONTROLLED AIRPORT - CONTROLLED AIRPORT
          CONTROL ZONE/AREA - YES                                  CONVERGENCE ANGLE-DEGREES -  26
          HORIZONTAL COLLISION ANGLE-DEGREES -   10                EVASIVE ACTION TAKEN - UNKNOWN/NOT REPORTED
          ANTI-COLLISION LIGHTS - OPERATING
        REMARKS- ADVISORIES GIVEN WHILE BOTH ACFT AT TIMMERMAN AR.T.COLLISION OCCURRED ABT 9MI W OF ARPT.
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0310   71/3/9    SUSSEX,WIS          CESSNA 172K         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1505                    N46654              PX-  0  0  0  DUAL                      AGE 44, 3400 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  2                            1300 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - WAUKESHA
        DEPARTURE POINT             INTENDED DESTINATION
          WAUKEGAN,ILL                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - BY LOCAL CONTROL               CONTROLLED/UNCONTROLLED AIRPORT - CONTROLLED AIRPORT
          CONTROL ZONE/AREA - YES                                  CONVERGENCE ANGLE-DEGREES -  144
          HORIZONTAL COLLISION ANGLE-DEGREES -   10                EVASIVE ACTION TAKEN - UNKNOWN/NOT REPORTED
          ANTI-COLLISION LIGHTS - OPERATING
        REMARKS- STUDENT FLYING UNDER THE HOOD.BOTH ACFT LANDED WITHOUT FURTHER DMG. TFC ADVY ACKD.
```

## Aircraft 1

- Registration: [N46654](https://openairdocs.org/aircraft/N46654), registered now, S/N 17257412, built 1968 (OpenAirDocs)
- Reported make and model: CESSNA 172K
- Registry model: [Cessna 172K](https://openairdocs.org/model/cessna-172k) (registry code 2072430) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Waukesha

## Aircraft 2

- Registration: [N8031L](https://openairdocs.org/deregistered/N8031L-2024-08-10), registration cancelled 2024-08-10, S/N 17256231, built 1967 (OpenAirDocs)
- Reported make and model: CESSNA 172H
- Registry model: [Cessna 172H](https://openairdocs.org/model/cessna-172h) (registry code 2072424) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Waukesha

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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