# NTSB CHI74AEE30: Aero Comdr 720, N688R, Rockton, IL, October 21, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 21, 1973
- Place: Rockton, IL · ROCKTON, IL
- Location: 42.4471° N, 89.0631° W: Placed by OpenAirDocs: center of Rockton, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.4471&lon=-89.0631&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 18, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 187764
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI74AEE30
- Page: https://openairdocs.org/ntsb/CHI74AEE30

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4103  73/10/21   ROCKTON,ILL         AERO COMDR 720      CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 44, 321
        TIME - 1722                    N688R               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 130 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - WAGON WHEEL
        DEPARTURE POINT             INTENDED DESTINATION
          CHICAGO,ILL                 ROCKTON,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: WHEELS,TIRES,AXLES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        REMARKS- LEFT MAIN GEAR TIRE FAILURE
```

## Aircraft

- Registration: [N688R](https://openairdocs.org/deregistered/N688R-2013-11-12), registration cancelled 2013-11-12, S/N 720-790-11, built 1960 (OpenAirDocs)
- Reported make and model: AERO COMDR 720
- Registry model: [Aero Commander 720](https://openairdocs.org/model/aero-commander-720) (registry code 0141802) (OpenAirDocs)
- Registry engine: [Lycoming GSO&IGSO-480 series](https://openairdocs.org/engine/lycoming-gso-igso-480-series) (registry code 41529, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Wagon Wheel

## 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 19731021034559A](https://openairdocs.org/incident/19731021034559A), Oct 21, 1973: Rkwell 720RKWELL, Rockton, IL, Substantial damage. Left main gear tire failure

## Other investigations on N688R (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 CHI77FA063](https://openairdocs.org/ntsb/CHI77FA063), Aug 4, 1977: Aero Comdr 720 (N688R), Wausau, WI, destroyed, 3 fatal

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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