# NTSB UNK64X3435: Bell 47D1, N4253A, Lucasville, OH, August 16, 1964

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: August 16, 1964
- Place: Lucasville, OH · LUCASVILLE, OH
- Location: 38.8740° N, 82.9903° W: Placed by OpenAirDocs: center of Lucasville, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8740&lon=-82.9903&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 2 uninjured
- Status: Completed, report January 15, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 182699
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X3435
- Page: https://openairdocs.org/ntsb/UNK64X3435

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0723  64/8/16    LUCASVILLE OHIO     BELL 47D1           CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1750                    N4253A              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  AGE 54, 4000 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            200 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: NORMAL CRUISE
           ROLL OVER                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: TAIL ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL)
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
        REMARKS- DETERIATION OF WOOD AT SHANK END OF TAIL ROTOR BLADES CAUSED FAILURE
```

## Aircraft

- Registration: N4253A (not matched to a registry record)
- Reported make and model: BELL 47D1
- Category: Helicopter
- Engines: reciprocating
- Damage: 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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