Aircraft Accident/Incident Report

Cushing, Oklahoma 74023
Saturday, June 26, 2004 20:41 CDT

NTSB Narrative Summary Released at Completion of Accident

While maneuvering during a local sightseeing flight, the helicopter impacted power lines, crashed into a river, and came to rest 90 percent submerged in the water approximately 1,500 feet from the power lines. According to the operator, the helicopter was providing sightseeing rides for guests at a birthday party. Approximately 1 hour prior to the accident, a witness observed the accident helicopter flying reckless near his residence. According to the accident flight passengers, the helicopter departed and flew west toward a nearby river. One passenger reported, "Once we arrived [at the river], he descended to within a few feet over the riverbed and then flew up into the power lines." Another passenger, who was seated in the rear center seat and looking out the windscreen, stated he could see the river and the sun out of the windscreen. The passengers did not see the power lines; however, one observed sparks and flying debris after contact with the power lines. The passengers stated the helicopter shook violently and impacted the water. Examination of the helicopter revealed the power lines impacted the helicopter's upper wire cutter, main rotor mast, and main rotor blade pitch links. Examination of the airframe and engine revealed no anomalies that would have precluded normal operation prior to impact with the power lines. The reported sunset on the day of the accident was 3 minutes after the impact with the power lines.

NTSB Probable Cause Narrative

the pilot's inadequate in-flight planning/decision and his failure to maintain obstacle clearance. Contributing factors were low altitude flight, sun glare, and the static wires.

Event Information

Type of Event Accident
Event Date 6/26/2004
Event Day of the Week Saturday
Time of Event 2041
Event Time Zone Central Daylight Time
Event City Cushing
Event State OKLAHOMA
Event Country --
Zipcode of the event site 74023
Event Date Year 2004
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 360300N
Event Location Longitude 0984501W
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 Weather Observation Facility
Time of the weather observation 1953 Central Daylight Time
Direction of event from weather observation facility (degrees) 280
Weather Observation Facility ID SWO
Elevation of weather observation facility 989
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation CDT
Lighting Conditions Dusk
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) 26
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30.03
Density Altitude (feet) --
Intensity of Precipitation Light
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 3
Injury Total All 5
Investigating Agency NTSB
NTSB Docket Number (internal use) 17305
NTSB Notification Source FAA Operations Center
NTSB Notification Date Jun 26 2004 12:00AM
NTSB Notification Time 2230
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Feb 24 2005 9:13AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Oklahoma City, Oklahoma

Aircraft Involved

Aircraft #1

Aircraft Registration Number N27TV
NTSB Number FTW04FA167
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 206B
Aircraft Series Identifier --
Aircraft Serial Number 3764
Certified Max Gross Weight 3200
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 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 1 2004 12:00AM
Airframe hours since last inspection --
Airframe Hours 6394.5
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Interstate Helicopters, Inc.
Aircraft Owner Street Address 941 SW 22nd
Aircraft Owner City Oklahoma City
Aircraft Owner State OK
Aircraft Owner Country USA
Aircraft Owner Zipcode 73109
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 --
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) Business
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Cushing
Departure State OK
Departure Country USA
Departure Time 2015
Departure Time Zone CDT
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 Maneuvering
Report sent to ICAO? No
Evacuation occurred Yes
Date of most recent change to record --
User who most recently changed record --
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight Yes
Air Medical Flight No
Medical Flight --