# NTSB SEA05CA043: Cessna 172N, N5204K, Idaho Falls, ID, February 3, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: February 3, 2005, 12:30 local (19:30 UTC) - Place: Idaho Falls, ID - Coordinates: 43.514446, -112.070274 - Nearby events: https://openairdocs.org/map.md?lat=43.5144&lon=-112.0703&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report April 28, 2005 - Report: Approved by Office Director - Parties: Salt Lake City, UT - NTSB case key (mKey): 60949 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA05CA043 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/60949/pdf - Page: https://openairdocs.org/ntsb/SEA05CA043 ## Probable cause 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. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - roll - directional control - not maintained, dual student - supervision - inadequate, pilot in command(cfi) (cause) - On ground/water encounter with terrain/water, landing - roll - terrain condition - snow covered (contributing factor) - Nose over, landing - roll ## Analysis 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. ## Factual narrative On February 3, 2005, at 1230 mountain standard time, a Cessna 172N, N5204K, sustained substantial damage when it nosed over following a loss of directional control during the landing roll at Idaho Falls Regional Airport, Idaho Falls, Idaho. The student pilot and the flight instructor were not injured. The airplane was registered to Teton Leasing LLC of Pocatello, Idaho, and operated by Avcenter, Inc. of Pocatello. Visual meteorological conditions prevailed and no flight plan was filed for the 14 CFR Part 91 local instructional flight. The flight originated at Idaho Falls at 1215. According to a written statement provided by the flight instructor, 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. ## Aircraft - Registration: [N5204K](https://openairdocs.org/deregistered/N5204K-2014-09-03), registration cancelled 2014-09-03, S/N 17274009, built 1980 (OpenAirDocs) - Reported make and model: Cessna 172N - Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17274009 - Engines: Lycoming O-320-H2AD reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Avcenter, Inc. - Registered owner: Teton Leasing LLC - Airworthiness certificate: Standard, Normal - Departed: IDA, Idaho Falls, ID - Airport: IDA, Idaho Falls Regional, runway 35 ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 24; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1; flight hours: 243 total, 90 in this make and model, 11 in the last 90 days - Student pilot; age 43; injuries: none; student; medical: class 3; flight hours: 10 total, 10 in this make and model, 5 in the last 90 days, 5 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 350° at 7 knots - Visibility: 10 statute miles - Temperature: 28 °F ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20050203001159A](https://openairdocs.org/incident/20050203001159A), Feb 3, 2005: Cessna 172N, Idaho Falls, ID, Substantial damage. (-23) On February 3, 2005 at 1240 MST a Cessna 172N, N5204K, s/n 17274009, ran off the left side of rwy 35 at Idaho Falls airport, (ida) and flipped over,… ## Other investigations on N5204K (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB WPR12LA306](https://openairdocs.org/ntsb/WPR12LA306), Jul 16, 2012: Cessna 172N (N5204K), Rockford, ID, substantial damage. Probable cause: A partial loss of engine power during cruise flight due to the failure of the No. 3 cylinder exhaust valve for reasons that could not be determined due to the damage to the valve head and the missing… From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.