Airlake Airport
Aircraft Accident/Incident Report

Lakeville, Minnesota 55044
Wednesday, June 26, 1985 13:57 CDT

NTSB Narrative Summary Released at Completion of Accident

THE ACFT WAS BEING LANDED ON A TRAILER FOR TRANSPORTATION. UPON TOUCHDOWN THE RIGHT SKID HOOKED ON THE LANDING GUIDES AND THE HELICOPTER ROLLED TO THE RIGHT SIDE. THE MAIN ROTOR BLADES STRUCK THE GROUND, THE LEFT FUEL TANK RUPTURED AND AN EXPLOSION AND FIRE ENSUED.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 6/26/1985
Event Day of the Week Wednesday
Time of Event 1357
Event Time Zone Central Daylight Time
Event City LAKEVILLE
Event State MINNESOTA
Event Country --
Zipcode of the event site 55044
Event Date Year 1985
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport AIRLAKE
Event Location Nearest Airport ID Y12
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 960
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1350 Central Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID MSP
Elevation of weather observation facility 841
Distance of event from weather observation facility (units?) 150
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 1800
Lowest Non-Ceiling Height 1800
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 19
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Unknown
Wind Speed (knots) 6
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 None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 857
NTSB Notification Source --
NTSB Notification Date Jun 26 1985 12:00AM
NTSB Notification Time 1510
Fiche Number and/or location -used to find docket information 28084
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3094G
NTSB Number CHI85LA254
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name BELL
Aircraft Model 47G-4
Aircraft Series Identifier 47G-4
Aircraft Serial Number 3361
Certified Max Gross Weight 2950
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 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Mar 28 1985 12:00AM
Airframe hours since last inspection 114
Airframe Hours 7487
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name EDWARD R. COLMER
Aircraft Owner Street Address P.O. BOX 801
Aircraft Owner City HIBBING
Aircraft Owner State MN
Aircraft Owner Country
Aircraft Owner Zipcode 55746
Operator is an individual? --
Operator Name STEVE D. NEIDERHAUSER
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1672 HICKORY
Operator City EAGEN
Operator State MN
Operator Country
Operator Zip code 55122
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 --
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
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
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 Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
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 --