Aircraft Accident/Incident Report

Merlin, Oregon 97352
Thursday, May 23, 2002 15:30 PDT

NTSB Narrative Summary Released at Completion of Accident

Witnesses reported observing the helicopter traveling over the river at an altitude of about 50-100 feet above the water when it collided with an unmarked telephone line support cable. One of the witnesses reported that the engine rpm did not change until the helicopter collided with the cable. After striking the cable, the engine rpm slowed, but did not stop. The helicopter subsequently collided with the ground along the rivers edge and came to rest partially submerged along the bank. The width of the river at the accident site was approximately 75 yards wide. About 300 feet upstream of the main wreckage, two cables running perpendicular to the river were located. One of the two cables was broken and in the water. The other cable was intact, but not taut, and displayed a considerable droop. One end of the 1/8 in diameter cables was attached to a power pole near a restaurant. The other end traveled to the opposite side of the river and over upsloping terrain.

NTSB Probable Cause Narrative

Clearance from a cable running perpendicular to a river was not maintained during low level cruise flight. A cable was a factor.

Event Information

Type of Event Accident
Event Date 5/23/2002
Event Day of the Week Thursday
Time of Event 1530
Event Time Zone Pacific Daylight Time
Event City Merlin
Event State OREGON
Event Country --
Zipcode of the event site 97352
Event Date Year 2002
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 423145N
Event Location Longitude 1232900W
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1356 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 92
Weather Observation Facility ID MFR
Elevation of weather observation facility 1335
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation PDT
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) 22
Dew Point at event time (in degress fahrenheit) -2
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.04
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 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 13223
NTSB Notification Source FAA-REGIONAL OPERATIONS
NTSB Notification Date May 23 2002 12:00AM
NTSB Notification Time 1600
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 18 2003 4:34PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Hillsboro, Oregon

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2322Y
NTSB Number SEA02FA085
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Robinson
Aircraft Model R-22 Mariner
Aircraft Series Identifier --
Aircraft Serial Number 2058M
Certified Max Gross Weight 1370
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 6 2001 12:00AM
Airframe hours since last inspection 30
Airframe Hours 640
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name James E. Marks
Aircraft Owner Street Address --
Aircraft Owner City Kingman
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 86401
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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) Aerial Observation
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City Grants Pass
Departure State OR
Departure Country USA
Departure Time 1500
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Cruise
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Feb 21 2003 12:47PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --