Aircraft Accident/Incident Report

Deer Island, Oregon 97054
Tuesady, August 7, 2012 7:15 PDT

NTSB Narrative Summary Released at Completion of Accident

On August 7, 2012, about 0715 Pacific daylight time, a Hiller UH-12D turbine helicopter, N47035, landed hard in a clear-cut forest area on Deer Island, Oregon. The helicopter was owned by Western Helicopter Services, Inc., and operated under contract to the United States Forest Service (USFS), under the provisions of 14 Code of Federal Regulations Part 137 as an aerial application flight. The pilot received minor injuries, and the helicopter sustained substantial damage to the fuselage, main rotor blades, transmission, and tail boom, which separated during the accident sequence. Visual meteorological conditions prevailed for the flight, and no flight plan had been filed. The flight departed from a heliport on private property about 0715, on the morning of the accident. The pilot reported that he started spraying a herbicide about 0625, and had made six runs with 100 gallons of the herbicide before refueling. He stopped to refuel with 35 gallons of Jet A fuel, and took off about 0715, with the seventh load of the day. He was making a right turn for the next pass when he felt the helicopter shudder. The pilot stated that the helicopter did not “feel right,” and shortly thereafter, he heard a loud “bang!” The helicopter began to shake and he had little to no flight control. The pilot stated that the helicopter was about 45 feet above ground level (agl), and the helicopter was skidding to the right. After the helicopter touched down, it rolled onto it’s right side; the pilot shut down the engine, and turned off the battery master switch.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/7/2012
Event Day of the Week Tuesday
Time of Event 715
Event Time Zone Pacific Daylight Time
Event City Deer Island
Event State OREGON
Event Country --
Zipcode of the event site 97054
Event Date Year 2012
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 455504N
Event Location Longitude 1225114W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height 2000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Thin Overcast
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 275
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 2
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) --
NTSB Notification Source Western Helicopter Services, I
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 21 2012 2:57PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N47035
NTSB Number WPR12LA347
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name HILLER
Aircraft Model UH-12D
Aircraft Series Identifier --
Aircraft Serial Number 1074
Certified Max Gross Weight --
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 22 2012 12:00AM
Airframe hours since last inspection 53
Airframe Hours 18069
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name WESTERN HELICOPTER SERVICES INC
Aircraft Owner Street Address --
Aircraft Owner City NEWBERG
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97132-0369
Operator is an individual? No
Operator Name WESTERN HELICOPTER SERVICES INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City NEWBERG
Operator State OR
Operator Country USA
Operator Zip code 97132-0369
Operator Code --
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Deer Island
Departure State OR
Departure Country USA
Departure Time 715
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Deer Island
Destination State OR
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 21 2012 2:42PM
User who most recently changed record coos
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --