Hector International Airport
Aircraft Accident/Incident Report

Fargo, North Dakota 58107
Thursday, April 21, 1994 15:02 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT REPORTED HE WAS DEMONSTRATING AUTOROTATIONS TO TOUCHDOWN TO AN FAA INSPECTOR AS PART OF A CHECK RIDE FOR A HELICOPTER FLIGHT INSTRUCTOR CERTIFICATE. DURING THE TURN FROM BASE TO FINAL, THE PILOT SAID HE INADVERTENTLY RAISED THE COLLECTIVE PREMATURELY AND ALLOWED THE MAIN ROTOR SPEED TO DECAY. THE HELICOPTER SUBSEQUENTLY LANDED HARD AND RECEIVED SUBSTANTIAL DAMAGE. THE FAA INSPECTOR ABOARD KNEW THAT THE HELICOPTER WAS GOING TO LAND SHORT OF THE INTENDED TOUCHDOWN SITE. HE SAID THAT HE NORMALLY RESTS HIS HAND ON THE COLLECTIVE DURING PRACTICE AUTOROTATIONS, BUT DID NOT DO SO IN THIS INSTANCE.

NTSB Probable Cause Narrative

the pilot in command's improper autorotation technique. A factor associated with the accident is the FAA Inspector's delayed remedial action.

Event Information

Type of Event Accident
Event Date 4/21/1994
Event Day of the Week Thursday
Time of Event 1502
Event Time Zone Central Daylight Time
Event City FARGO
Event State NORTH DAKOTA
Event Country --
Zipcode of the event site 58107
Event Date Year 1994
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport HECTOR INTERNATIONAL
Event Location Nearest Airport ID FAR
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 900
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1520 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID FAR
Elevation of weather observation facility 900
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
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) 15
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) -8
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1190
NTSB Notification Source --
NTSB Notification Date Apr 21 1994 12:00AM
NTSB Notification Time 1640
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 11:00AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3623Y
NTSB Number CHI94LA138
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name SCHWEIZER
Aircraft Model 269C
Aircraft Series Identifier 269C
Aircraft Serial Number 51601
Certified Max Gross Weight 2050
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 Dec 15 1993 12:00AM
Airframe hours since last inspection 30
Airframe Hours 195
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name QUEST AVIATION
Aircraft Owner Street Address P.O. BOX 2140
Aircraft Owner City ABERDEEN
Aircraft Owner State SD
Aircraft Owner Country
Aircraft Owner Zipcode 57402
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1330
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 Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 13
Runway Length 4199
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --