Edward F Knapp Airport
Aircraft Accident/Incident Report

Berlin, Vermont 05641
Friday, June 5, 2009 12:10 EDT

NTSB Narrative Summary Released at Completion of Accident

The experimental amateur-built helicopter was approaching an airport when witnesses heard a “pop noise” and saw it nose down, “straight into the ground.” The main wreckage was located about 360 feet from a treeline. There were no skid marks and no evidence of tree impact. The majority of the helicopter was consumed in a postcrash fire, which precluded a thorough examination. Debris from the aircraft was located about 1/2-mile from the accident site, on what would have been a left base to the runway. Additional items, including cabin door plexiglass material and a piece of horizontal stabilizer fin, extended aft of the impact site about 320 feet. The main rotor system was collapsed downward, and the swashplate assembly and flight control system were destroyed. The main rotor blades exhibited fire damage, and appeared to have “very little” impact damage, with no notable damage to the leading edges. The tail boom was melted from the fuselage attach point to 2 to 3 feet forward of the tail rotor gearbox, which was rotated without binding. The tail rotor blades were broken near their bases, and one blade was impaled in the ground. A postmortem examination of the pilot, who was also the builder, did not reveal any preaccident medical anomalies.

NTSB Probable Cause Narrative

A loss of control in flight for undetermined reasons.

Event Information

Type of Event Accident
Event Date 6/5/2009
Event Day of the Week Friday
Time of Event 1210
Event Time Zone Eastern Daylight Time
Event City Berlin
Event State VERMONT
Event Country --
Zipcode of the event site 05641
Event Date Year 2009
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 441212N
Event Location Longitude 0723344W
Event Location Airport Edward F Knapp
Event Location Nearest Airport ID MPV
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1551 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 170
Weather Observation Facility ID MPV
Elevation of weather observation facility 1165
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.05
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 26881
NTSB Notification Source FAA New England ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 15 2010 2:10PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N162RY
NTSB Number ERA09LA323
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name YORK RONALD J
Aircraft Model ROTORWAY 162F
Aircraft Series Identifier --
Aircraft Serial Number 6673
Certified Max Gross Weight 1500
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 1
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Jan 2 2009 12:00AM
Airframe hours since last inspection --
Airframe Hours 147
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name YORK RONALD J
Aircraft Owner Street Address --
Aircraft Owner City BARRE
Aircraft Owner State VT
Aircraft Owner Country USA
Aircraft Owner Zipcode 05641-9618
Operator is an individual? Yes
Operator Name YORK RONALD J
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Barre
Operator State VT
Operator Country USA
Operator Zip code 05641
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code MPV
Departure City Berlin
Departure State VT
Departure Country USA
Departure Time --
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code MPV
Destination City Berlin
Destination State VT
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 4 2010 10:13AM
User who most recently changed record kenj
Since inspection or accident Last Inspection
Event Location Runway Number and Location 17
Runway Length 5002
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --