# NTSB CHI73IC086: Hamilton TC45J, N9321, Ypsilanti, MI, May 4, 1973

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: May 4, 1973
- Place: Ypsilanti, MI · YPSILANTI, MI
- Location: 42.2444° N, 83.6212° W: Placed by OpenAirDocs: center of Ypsilanti, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.2444&lon=-83.6212&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 8, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 189852
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73IC086
- Page: https://openairdocs.org/ntsb/CHI73IC086

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0013   73/5/4    YPSILANTI,MICH      HAMILTON TC45J      CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 35, 5800
        TIME - 2113                    N9321               PX-  0  0  1  AIR TAXI-CARGO            TOTAL HOURS, 71 IN TYPE,
                                       DAMAGE-MINOR        OT-  0  0  0                            INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - WILLOW RUN
        DEPARTURE POINT             INTENDED DESTINATION
          LOUISVILLE,KY               YPSILANTI,MICH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - CHECKLIST-FAILED TO USE
           AIRFRAME - LANDING GEAR: LANDING GEAR WARNING AND INDICATING COMPONENTS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- HAMILTON VOLPAR CONVERSION. GR WARNING INDS INOP,KNOWN TO PLT.
```

## Aircraft

- Registration: N9321 (not matched to a registry record)
- Reported make and model: HAMILTON TC45J
- Category: Airplane
- Engines: turbo prop
- Damage: Minor damage
- Airport: Willow Run

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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