Kalispell City Airport
Aircraft Accident/Incident Report

Kalispell, Montana 59901
Monday, February 20, 2012 10:30 MST

NTSB Narrative Summary Released at Completion of Accident

The flight instructor reported that the helicopter experienced a loss of engine power after the student initiated a practice autorotation about 650 feet above ground level. The flight instructor then assumed control of the helicopter for an emergency landing. However, the helicopter touched down short of the runway, became airborne again, rotated 180 degrees to the left, and landed on the taxiway with the main rotor spinning down. During the postaccident examination, the engine started and ran with no evidence of preaccident mechanical malfunctions or failures that would have precluded normal operation. The cause of the reported loss of engine power could not be duplicated.

NTSB Probable Cause Narrative

A total loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.

Event Information

Type of Event Accident
Event Date 2/20/2012
Event Day of the Week Monday
Time of Event 1030
Event Time Zone Mountain Standard Time
Event City Kalispell
Event State MONTANA
Event Country --
Zipcode of the event site 59901
Event Date Year 2012
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 481838N
Event Location Longitude 1141522W
Event Location Airport Kalispell City Airport
Event Location Nearest Airport ID S27
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1055 Mountain Standard Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID GPI
Elevation of weather observation facility 2977
Distance of event from weather observation facility (units?) 8
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 2800
Lowest Non-Ceiling Height 2400
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 0
Dew Point at event time (in degress fahrenheit) -3
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.87
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 30880
NTSB Notification Source Aircraft Operator
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 27 2012 8:57PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N51727
NTSB Number WPR12LA111
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ENSTROM
Aircraft Model F28
Aircraft Series Identifier C
Aircraft Serial Number 393
Certified Max Gross Weight 2200
Aircraft Category Helicopter
Aircraft Registration Class --
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 Annual
Date of Last Inspection Feb 10 2012 12:00AM
Airframe hours since last inspection 5
Airframe Hours 1483
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name MRR Spraying LLC
Aircraft Owner Street Address --
Aircraft Owner City Shelby
Aircraft Owner State MT
Aircraft Owner Country USA
Aircraft Owner Zipcode 59474
Operator is an individual? Yes
Operator Name James R. Pierce
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Bigfork
Operator State MT
Operator Country USA
Operator Zip code 59911
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
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 No
Departure Airport Code S27
Departure City Kalispell
Departure State MT
Departure Country USA
Departure Time 940
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code S27
Destination City Kalispell
Destination State MT
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 27 2012 8:52PM
User who most recently changed record stam
Since inspection or accident Last Inspection
Event Location Runway Number and Location 13
Runway Length 3600
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --