# NTSB OAK68A0050: Bell 47J-2A, N8501F, Hanalei, HI, December 13, 1967

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: December 13, 1967
- Place: Hanalei, HI · HANALEI, HI
- Location: 22.2038° N, 159.4977° W: Placed by OpenAirDocs: center of Hanalei, HI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=22.2038&lon=-159.4977&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal, 1 minor
- Status: Completed, report June 4, 1968
- Report: Brief approved by the director
- Safety recommendations: Yes
- NTSB case key (mKey): 79420
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK68A0050
- Page: https://openairdocs.org/ntsb/OAK68A0050

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1121  67/12/13   HANALEI,HAWAII      BELL 47J-2A         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 23, 2200
        TIME - 1736                    N8501F              PX-  2  0  0  AIR TAXI-PASSG            TOTAL HOURS, 13 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - HANALEI PLANTATON
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      LANDING: FINAL APPROACH
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: TAIL ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: SUBSTANDARD QUALITY CONTROL
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
         FIRE AFTER IMPACT
        REMARKS- MANUFACTURING DEFECT,LACK OF BONDING MATERIAL BETWEEN SHELL AND GRIP.
```

## Aircraft

- Registration: N8501F (not matched to a registry record)
- Reported make and model: BELL 47J-2A
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed
- Airport: Hanalei Plantaton

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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