# NTSB UNK64X0626: Hughes 269A, N8831F, White Oaks, NC, February 20, 1964

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: February 20, 1964
- Place: White Oaks, NC · WHITE OAKS, NC
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed
- Report: Brief approved by the director
- NTSB case key (mKey): 185798
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X0626
- Page: https://openairdocs.org/ntsb/UNK64X0626

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0228  64/2/20    WHITE OAKS NC       HUGHES 269A         CR-  0  0  2  COMMERCIAL                COMMERCIAL, AGE 32, 2624
        TIME - 1000                    N8831F              PX-  0  0  0  OTHER                     TOTAL HOURS, 300 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      IN FLIGHT: LOW PASS
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: AUTOROTATIVE DESCENT
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: CLUTCH ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- IDLER PULLEY CLUTCH BEARING FAILED RESULTING IN SUDDEN LOSS OF POWER TO MAIN ROTOR SYSTEM.
```

## Aircraft

- Registration: [N8831F](https://openairdocs.org/deregistered/N8831F-1965-05-26), registration cancelled 1965-05-26, S/N 0176 (OpenAirDocs)
- Reported make and model: HUGHES 269A
- Registry model: [Hughes 269A](https://openairdocs.org/model/hughes-269a) (registry code 4470402) (OpenAirDocs)
- 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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