Aircraft Accident/Incident Report

Buhl, Idaho 83316
Thursday, May 25, 2000 8:45 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that while en route to a field for the aerial application, he was distracted by a radio call from another pilot. The pilot looked down at a map to verify a field location, and when he looked back up, he did not see the power lines that he knew were along his flight path and had flown over on previous flights. After colliding with those power lines, the helicopter pitched nearly straight up, leveled slightly, then fell to the ground in a tail low attitude. A post-crash fire consumed the helicopter. The pilot reported that there were water drops on the windshield, which was dirty, and the sky was overcast, reducing his visibility substantially.

NTSB Probable Cause Narrative

The pilot's inadequate visual lookout, and his failure to maintain adequate clearance from the power lines. The pilot's diverted attention, a dirty windshield, power lines, and light rain were factors.

Event Information

Type of Event Accident
Event Date 5/25/2000
Event Day of the Week Thursday
Time of Event 845
Event Time Zone Mountain Daylight Time
Event City BUHL
Event State IDAHO
Event Country --
Zipcode of the event site 83316
Event Date Year 2000
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
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 753 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 100
Weather Observation Facility ID TWF
Elevation of weather observation facility 4151
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 8000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 230
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Light
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 --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 772
NTSB Notification Source SHERIFF'S DEPT
NTSB Notification Date May 25 2000 12:00AM
NTSB Notification Time 918
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record May 11 2001 4:06AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2253A
NTSB Number SEA00LA092
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Sikorsky
Aircraft Model S-58
Aircraft Series Identifier S-58
Aircraft Serial Number 148809
Certified Max Gross Weight 14000
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 15 2000 12:00AM
Airframe hours since last inspection 16
Airframe Hours 5582
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name THOMAS HELICOPTERS
Aircraft Owner Street Address 1553 SOUTH 1800 EAST
Aircraft Owner City GOODING
Aircraft Owner State ID
Aircraft Owner Country
Aircraft Owner Zipcode 83330
Operator is an individual? --
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 GBNG
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 Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City BUHL
Departure State ID
Departure Country
Departure Time 840
Departure Time Zone MDT
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 --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 11 2001 4:06AM
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 --