# NTSB CHI94LA094: Cessna 172, N7924G, Concordia, KS, February 26, 1994 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: February 26, 1994, 16:00 local (22:00 UTC) - Place: Concordia, KS - Coordinates: 39.569561, -97.660873 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=39.5696&lon=-97.6609&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report March 13, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 9474 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI94LA094 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/9474/pdf - Page: https://openairdocs.org/ntsb/CHI94LA094 ## Probable cause the flight instructor's inadequate remedial action when the student pilot failed to maintain adequate directional control of the airplane during the landing roll. A related factor is the drifted snow. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water encounter with terrain/water, landing - roll - weather condition - crosswind - directional control - not maintained, dual student (contributing factor) - terrain condition - snowbank (contributing factor) - remedial action - inadequate, pilot in command(cfi) (cause) - Nose over, landing - roll - terrain condition - snow covered (contributing factor) ## Analysis THE CFI REPORTED THE STUDENT PILOT TOUCHED DOWN ON THE RUNWAY CENTERLINE, THEN THE AIRPLANE BEGAN TO VEER TO THE RIGHT. THE CFI STATED BEFORE THEY COULD GET THE AIRPLANE BACK ON CENTERLINE, THE RIGHT MAIN LANDING GEAR STRUCK SOME DRIFTED SNOW AND PULLED THE AIRPLANE FURTHER RIGHT, OFF THE RUNWAY. THE AIRPLANE ENCOUNTERED DEEP SNOW AND NOSED OVER, COMING TO REST INVERTED. THE CFI REPORTED THE WINDS WERE OUT OF 110 DEGREES AT 10 TO 13 KNOTS. THE RUNWAY IN USE WAS RUNWAY 17 (3,600' x 60', ASPHALT). POSTACCIDENT INVESTIGATION REVEALED THE RUNWAY WAS CLEARED OF SNOW TO A WIDTH OF 53 FEET THROUGHOUT ITS ENTIRE LENGTH. ## Factual narrative On February 26, 1994, at 1600 central standard time, a Cessna 172, N7924G, operated by the Belleville Flyers, Inc. flying club, sustained substantial damage when it struck a snowbank and nosed over during the landing roll at the Blosser Municipal Airport in Concordia, Kansas. The Certificated Flight Instructor (CFI) and student pilot reported no injuries. Visual meteorological conditions prevailed for the local flight, no flight plan was filed. The flight operated under 14 CFR Part 91, and originated from Concordia, Kansas approximately 1550. The CFI stated the student pilot flew solo from the airplane's base airport in Belleville, Kansas to Concordia, to position the airplane for the dual instructional flight. The CFI reported the student's first landing during the dual flight was normal and error free. The CFI stated on the next landing, the airplane touched down on the runway centerline, then began to veer to the right. He stated the right main landing gear struck a "...frozen snow drift that blown onto the runway from the previous days winds (30-35 mph). After contact with the snowdrift the aircraft immediately pulled to the right....the aircraft began being pulled into the thicker snow...." The airplane nosed over in the snow, and came to rest inverted. The CFI reported the winds were out of 110 degrees at 10 to 13 knots. The runway in use was Runway 17 (3,600' x 60', asphalt). Postaccident investigation revealed the runway was cleared of snow to a width of 53 feet throughout its entire length. ## Aircraft - Registration: [N7924G](https://openairdocs.org/aircraft/N7924G), registered now, S/N 17259624, built 1970 (OpenAirDocs) - Reported make and model: CESSNA 172 - Registry model: [Cessna 172L](https://openairdocs.org/model/cessna-172l) (registry code 2072432) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17259624 - Airframe hours: 5656 - Engines: LYCOMING O-320-D2G 160 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Belleville Flyers, Inc. - Registered owner: Belleville Flyers, Inc. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 1, 1993, 60 hours before - Airport: CNK, Blosser Municipal, runway 17, 3,600 × 60 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 29; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 2,630 total, 580 in this make and model, 2,455 as pilot in command, 94 in the last 90 days, 31 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 100° at 9 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 21 °F, dew point 10 °F - Altimeter: 30.00 inHg - Observed at: CNK ## 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 19940226003009A](https://openairdocs.org/incident/19940226003009A), Feb 26, 1994: Cessna 172L, Concordia, KS, Substantial damage. Landing off centerline wheel caught snow drift. Veered into snowbank. Nosed over. Runway cleared 53 feet width. 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.