Aircraft Accident/Incident Report

Benson, Arizona 85602
Thursday, July 2, 1987 14:00 MST

NTSB Narrative Summary Released at Completion of Accident

A BELL HELICOPTER 206L-3 COLLIDED WITH WIRES WHILE MANEUVERING OVER AN UNDERGROUND TELEPHONE CABLE. THE PLT INDICATED THAT HE HAD JUST COMPLETED A 360 DEG RIGHT TURN AT THE REQUEST OF THE PAX AND WAS APRX 185 DEG THROUGH THE SECOND TURN WHEN HE STRUCK A UNMARKED SINGLE STRAND POWER CABLE. THE PLT NOTICED A BRIGHT ELECTRICAL FLASH IN THE AREA OF THE ACFTS WINDSHIELD CENTER POST. HE IMMEDIATELY ENTERED AUTOROTATION AT APRX 80 FT AGL AND 60 KTS INDICATED AIRSPEED. THE TERRAIN BELOW THE ACFT WAS A VEGETATED DRY FLAT SANDY WASH. THE HELO LANDING HARD COLLAPSING THE SKID TYPE LANDING GEAR AND THEN ROLLED OVER ON ITS RIGHT SIDE. THE PLT ALSO STATED THAT HE DID NOT SEE THE WIRES PRIOR TO THE COLLISION. THE WIRES WERE STRUNG ACROSS THE WASH WITH THE POLES MASKED BY CANYON WALLS ON EACH SIDE OF THE WASH. THE PLT DID NOT GIVE ANY INDICATION OF MECHANICAL FAILURE OR MALFUNCTION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 7/2/1987
Event Day of the Week Thursday
Time of Event 1400
Event Time Zone Mountain Standard Time
Event City BENSON
Event State ARIZONA
Event Country --
Zipcode of the event site 85602
Event Date Year 1987
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID NONE
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1505 Mountain Standard Time
Direction of event from weather observation facility (degrees) 96
Weather Observation Facility ID TUS
Elevation of weather observation facility 2641
Distance of event from weather observation facility (units?) 35
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 50
Air Temperature at event time (in degrees celsius) 40
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 5
Injury Total None --
Injury Total Serious 1
Injury Total All 6
Investigating Agency NTSB
NTSB Docket Number (internal use) 2199
NTSB Notification Source --
NTSB Notification Date Jul 2 1987 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information 35760
Date of most recent change to record Dec 13 2000 2:36PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2123X
NTSB Number LAX87LA255
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 206L-3
Aircraft Series Identifier 206L-3
Aircraft Serial Number 51003
Certified Max Gross Weight 4250
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 7
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jul 1 1987 12:00AM
Airframe hours since last inspection 3
Airframe Hours 1485
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name AIR SERVICES INTERNATIONAL
Aircraft Owner Street Address 7300 E EVAN DRIVE
Aircraft Owner City SCOTTSDALE
Aircraft Owner State AZ
Aircraft Owner Country
Aircraft Owner Zipcode 85260
Operator is an individual? --
Operator Name AIR SERVICES INTERNATIONAL
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 7300 E. EVAN ROAD
Operator City SCOTTSDALE
Operator State AZ
Operator Country
Operator Zip code 85260
Operator Code
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code P33
Departure City WILLCOX
Departure State AZ
Departure Country
Departure Time 1330
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code TUS
Destination City TUCSON
Destination State AZ
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --