Idaho Falls Regional Airport
Aircraft Accident/Incident Report

Idaho Falls, Idaho 83405
Thursday, February 3, 2005 12:30 MST

NTSB Narrative Summary Released at Completion of Accident

The flight instructor reported that he and his student were performing touch and go landings on runway 35. On the second landing, the airplane touched down smoothly, and the flight instructor was "critiquing" the student's landing, when the student "unexpectedly added full power causing the plane to jerk to the left." The flight instructor reduced power and applied the brakes. He was unable to prevent the airplane from exiting the runway. When the nose wheel entered the "foot and a half deep snow" beside the runway, the airplane nosed over and came to rest inverted. The outboard left wing, the vertical stabilizer, and the wing struts sustained structural damage.

NTSB Probable Cause Narrative

The student pilot's failure to maintain directional control and the instructor's inadequate supervision of the flight. A contributing factor was the deep snow beside the runway.

Event Information

Type of Event Accident
Event Date 2/3/2005
Event Day of the Week Thursday
Time of Event 1230
Event Time Zone Mountain Standard Time
Event City Idaho Falls
Event State IDAHO
Event Country --
Zipcode of the event site 83405
Event Date Year 2005
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 433052N
Event Location Longitude 1120413W
Event Location Airport Idaho Falls Regional
Event Location Nearest Airport ID IDA
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 --
Weather Briefing Completeness --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) -2
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 350
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
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 Docket Number (internal use) 17638
NTSB Notification Source FAA ROC
NTSB Notification Date Feb 3 2005 12:00AM
NTSB Notification Time 1230
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 28 2005 2:59PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Salt Lake City, UT

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5204K
NTSB Number SEA05CA043
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 --
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 172N
Aircraft Series Identifier --
Aircraft Serial Number 17274009
Certified Max Gross Weight --
Aircraft Category Airplane
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 --
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Teton Leasing LLC
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country --
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name Avcenter, Inc.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Pocatello
Operator State ID
Operator Country USA
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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 Yes
Departure Airport Code IDA
Departure City Idaho Falls
Departure State ID
Departure Country USA
Departure Time 1215
Departure Time Zone MST
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 - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record --
User who most recently changed record --
Since inspection or accident --
Event Location Runway Number and Location 35
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --