# NTSB CHI68A0031: Bell 47G-2, N46R, Bedford, OH, September 26, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 26, 1967
- Place: Bedford, OH · BEDFORD, OH
- Location: 41.3921° N, 81.5347° W: Placed by OpenAirDocs: center of Bedford, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.3921&lon=-81.5347&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 1, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 114561
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI68A0031
- Page: https://openairdocs.org/ntsb/CHI68A0031

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1011  67/9/26    BEDFORD,OHIO        BELL 47G-2          CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, FL.INSTR.,
        TIME - 1530                    N46R                PX-  0  0  0  DEMONSTRATION             AGE 44, 2749 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            201 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: HOVERING
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        REMARKS- TORSIONAL OVERLOAD FAILURE OF T-R DRIVESHAFT.ATTEMPTED FLT WITH KNOWN VIBRATIONS.DIDNOT AUTOROTATE
```

## Aircraft

- Registration: N46R (not matched to a registry record)
- Reported make and model: BELL 47G-2
- 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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