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NTSB Preliminary Report: Hillsboro, OR

 

Location:

Hillsboro, OR

Accident Number:

WPR20LA119

Date & Time:

04/06/2020, 1410 PDT

Registration:

N725GT

Aircraft:

Robinson R44

Injuries:

1 None

Flight Conducted Under:

Part 91: General Aviation - Personal

 

On April 6, 2020, about 1410 Pacific daylight time, a Robinson R44 Raven II helicopter, N725GT, was substantially damaged following a forced landing at Portland-Hillsboro Airport (HIO), Portland, Oregon. The pilot was not injured. The helicopter was registered to and operated by the Horizons Unlimited Air Inc. as a Title 14 Code of Federal Regulations Part 91 flight. Visual meteorological conditions prevailed, and no flight plan was filed for the local flight destined for Warren, Oregon.

The pilot reported that, during takeoff, about 30 to 40 ft above ground level, he heard a loud "bang", followed by the low rotor RPM. In response, he lowered the collective and performed an autorotation on the paved taxiway. As a result of the hard impact, the skids spread, and the tailboom received substantial damage.

Initial examination of the engine revealed that the fuel servo induction air inlet duct was partially collapsed. The inner rubberized fabric liner of the duct had partially delaminated and separated from the outer rubberized fabric, obstructing the interior volume of the duct. The duct was retained, and the helicopter was secured for further examination.

Aircraft and Owner/Operator Information

Aircraft Make:

Robinson

Registration:

N725GT

Model/Series:

R44 II

Aircraft Category:

Helicopter

Amateur Built:

No

 

 

Operator:

Horizons Unlimited Air Inc

Operating Certificate(s) Held:

None

 

Meteorological Information and Flight Plan

Conditions at Accident Site:

Visual Conditions

Condition of Light:

Day

Observation Facility, Elevation:

KHIO, 204 ft msl

Observation Time:

1400 PDT

Distance from Accident Site:

0 Nautical Miles

Temperature/Dew Point:

18°C / 6°C

Lowest Cloud Condition:

Clear

Wind Speed/Gusts, Direction:

4 knots / , 270°

Lowest Ceiling:

None

Visibility

10 Miles

Altimeter Setting:

29.96 inches Hg

Type of Flight Plan Filed:

None

Departure Point:

Hillsboro, OR (HIO)

Destination:

Warren, OR

 

Wreckage and Impact Information

Crew Injuries:

1 None

Aircraft Damage:

Substantial

Passenger Injuries:

N/A

Aircraft Fire:

None

Ground Injuries:

N/A

Aircraft Explosion:

None

Total Injuries:

1 None

Latitude, Longitude:

45.542222, -122.950833 (est)

 

Administrative Information

Investigator In Charge (IIC):

Maja Smith

Additional Participating Persons:

Timothy Gunther; FSDO; Hillsboro, OR

Thom Webster; Robinson Helicopter Company; Torrance, CA

Steve Boyce; Aero Air, LLC

Note:

The NTSB did not travel to the scene of this accident.





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