Aircraft Accident/Incident Report

Montrose, Colorado 81401
Tuesady, August 19, 1997 16:45 MDT

NTSB Narrative Summary Released at Completion of Accident

The commercial-rated student pilot was practicing power recovery autorotations with a flight instructor (CFI) monitoring. The rotor rpm was allowed to deteriorate, which resulted in a hard landing. The main rotor blades flexed downward and severed the tail boom from the helicopter. Density altitude at the time was 11,300 feet.

NTSB Probable Cause Narrative

failure of the flight instructor (CFI) to properly supervise the flight and ensure that adequate rotor rpm was maintainted during the autorotation/landing. The high density altitude was a related factor.

Event Information

Type of Event Accident
Event Date 8/19/1997
Event Day of the Week Tuesday
Time of Event 1645
Event Time Zone Mountain Daylight Time
Event City MONTROSE
Event State COLORADO
Event Country --
Zipcode of the event site 81401
Event Date Year 1997
Event Date Month 8
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 1653 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID MTJ
Elevation of weather observation facility 6400
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation MDT
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) 10
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 11300
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 575
NTSB Notification Source --
NTSB Notification Date Aug 19 1997 12:00AM
NTSB Notification Time 1728
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:29PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2243W
NTSB Number FTW97LA319
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 Bell
Aircraft Model 47G-3B-2
Aircraft Series Identifier 47G-3B-2
Aircraft Serial Number 6755
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 Aug 14 1997 12:00AM
Airframe hours since last inspection 3
Airframe Hours 7931
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name HIGH COUNTRY HELICOPTERS, INC.
Aircraft Owner Street Address 1360 AIRPORT RD.
Aircraft Owner City MONTROSE
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 81401
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 HCXA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation External Load
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 MTJ
Departure City
Departure State
Departure Country
Departure Time 1600
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 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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --