# NTSB OAK73FJA11: Hughes 269C, N9678F, Honolulu, HI, January 1, 1973

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: January 1, 1973
- Place: Honolulu, HI · HONOLULU, HI
- Location: 21.3069° N, 157.8583° W: Placed by OpenAirDocs: center of Honolulu, HI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=21.3069&lon=-157.8583&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report April 6, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 169711
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK73FJA11
- Page: https://openairdocs.org/ntsb/OAK73FJA11

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0153   73/1/1    HONOLULU,HAWAII     HUGHES 269C         CR-  0  2  0  MISCELLANEOUS             COMMERCIAL, AGE 43, 6827
        TIME - 0105                    N9678F              PX-  0  0  0  POLICE PATROL             TOTAL HOURS, 1413 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - HONOLULU INTL
        DEPARTURE POINT             INTENDED DESTINATION
          HONOLULU,HAWAII             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: MAIN ROTOR                      TAKEOFF: VERTICAL
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: MAIN ROTOR PULLEYS,BELTS
           MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - CHAFED
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- BELT DRIVE IDLER PULLEY FAILED,BEARINGS SEIZED. TOO LOW FOR EFFECTIVE AUTOROTATION.
```

## Aircraft

- Registration: [N9678F](https://openairdocs.org/deregistered/N9678F-1973-06-27), registration cancelled 1973-06-27, S/N 310107, built 1971 (OpenAirDocs)
- Reported make and model: HUGHES 269C
- Registry model: [Hughes 269C](https://openairdocs.org/model/hughes-269c) (registry code 4470504) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Honolulu Intl

## 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 19730101000459A](https://openairdocs.org/incident/19730101000459A), Jan 1, 1973: Hughes 269C, Honolulu, HI, Substantial damage. Belt drive idler pulley failed,bearings seized. Too low for effective autorotation.

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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