# NTSB UNK64X1604: Cessna 210, N9668T, Harsens Is, MI, May 3, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 3, 1964
- Place: Harsens Is, MI · HARSENS IS, MI
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report September 17, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 183838
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X1604
- Page: https://openairdocs.org/ntsb/UNK64X1604

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1156   64/5/3    HARSENS IS MICH     CESSNA 210          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 42, 324
        TIME - 1530                    N9668T              PX-  0  0  2  BUSINESS                  TOTAL HOURS, 164 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - MEHL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
           MISCELLANEOUS ACTS,CONDITIONS - LANDED IN CONSTRUCTION AREA
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
```

## Aircraft

- Registration: [N9668T](https://openairdocs.org/aircraft/N9668T), registered now, S/N 57468, built 1960 (OpenAirDocs)
- Reported make and model: CESSNA 210
- Registry model: [Cessna 210](https://openairdocs.org/model/cessna-210) (registry code 2073402) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mehl

## Other investigations on N9668T (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 LAX93LA116](https://openairdocs.org/ntsb/LAX93LA116), Feb 12, 1993: Cessna 210 (N9668T), Fullerton, CA, substantial damage. Probable cause: THE PILOT'S FAILURE TO FOLLOW THE CHECKLIST. A FACTOR RELATING TO THIS ACCIDENT WAS THE MISADJUSTMENT OF THE LANDING GEAR LOCKING MECHANISM WHICH CAUSED INTERMITTENT OPERATION.

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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