# NTSB CHI74FEC05: Beech TC-45J, N9231, Detroit, MI, August 4, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 4, 1973
- Place: Detroit, MI · DETROIT, MI
- Location: 42.3314° N, 83.0458° W: Placed by OpenAirDocs: center of Detroit, MI, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.3314&lon=-83.0458&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 16, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 189457
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI74FEC05
- Page: https://openairdocs.org/ntsb/CHI74FEC05

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2115   73/8/4    DETROIT,MICH        BEECH TC-45J        CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 35, 6500
        TIME - 1330                    N9231               PX-  0  0  0  FERRY                     TOTAL HOURS, 450 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - DETROIT CITY
        DEPARTURE POINT             INTENDED DESTINATION
          YPSILANTI,MICH              DETROIT,MICH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: GEAR LOCKING MECHANISM
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        REMARKS- UPPER BOLT ON R GR WALKING BEAM DRAG LEG ASSY FAILED.
```

## Aircraft

- Registration: [N9231](https://openairdocs.org/deregistered/N9231-1992-11-24), registration cancelled 1992-11-24, S/N 51039 (OpenAirDocs)
- Reported make and model: BEECH TC-45J
- Registry model: [Beech TC-45J](https://openairdocs.org/model/beech-tc-45j) (registry code 1151022) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: Detroit City

## 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 19730804031419A](https://openairdocs.org/incident/19730804031419A), Aug 4, 1973: Beech SNB5, Detroit, MI, Substantial damage. Upper bolt on r gr walking beam drag leg assy failed.

## Other investigations on N9231 (3)

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 ATL88FA007](https://openairdocs.org/ntsb/ATL88FA007), Oct 9, 1987: Beech HA-1 (N9231), Memphis, TN, substantial damage, 1 fatal
- [NTSB NYC80FA054](https://openairdocs.org/ntsb/NYC80FA054), Jul 11, 1980: Beech TC-45J (N9231), Rochester, NY, substantial damage
- [NTSB CHI79FA028](https://openairdocs.org/ntsb/CHI79FA028-137460), Feb 21, 1979: Beech TC-45J (N9231), Plain City, OH, 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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