# NTSB CHI95LA070: Cessna 172, N84603, Cottage Grove, WI, January 20, 1995 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: January 20, 1995, 13:00 local (19:00 UTC) - Place: Cottage Grove, WI - Coordinates: 43.080513, -89.199172 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=43.0805&lon=-89.1992&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report July 24, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 9823 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI95LA070 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/9823/pdf - Page: https://openairdocs.org/ntsb/CHI95LA070 ## Probable cause THE PILOT'S SELECTION OF UNSUITABLE TERRAIN/RUNWAY FOR LANDING. FACTORS RELATED TO THE ACCIDENT WERE: THE UNFAVORABLE WIND, ICY RUNWAY CONDITION, AND SNOWBANK AT THE END OF THE RUNWAY. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, landing - roll - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause) - weather condition - unfavorable wind (contributing factor) - airport facilities,runway/landing area condition - icy (contributing factor) - On ground/water encounter with terrain/water, landing - roll - terrain condition - snowbank (contributing factor) - Nose over, landing ## Analysis THE PILOT STATED THAT LOCAL WINDS WERE FROM 030 DEGREES AT 10 KNOTS, SO HE ELECTED TO LAND ON RUNWAY 9. DURING THE LANDING ROLL, THE AIRPLANE ENCOUNTERED AN ICY RUNWAY CONDITION AND WENT SIDEWAYS. THE PILOT REPORTED THAT BY THE TIME HE GOT THE AIRPLANE STRAIGHTENED OUT, THERE WAS NOT ENOUGH RUNWAY REMAINING TO GO AROUND. THE AIRPLANE THEN TRAVELED OFF THE END OF THE RUNWAY, HIT A SNOWBANK, AND NOSED OVER. ABOUT 9 MILES EAST, THE WIND WAS REPORTED TO BE FROM 330 DEGREES AT 15 KNOTS. ## Factual narrative On January 20, 1995, at 1300 central standard time, a Cessna 172, N84603, operated by the Buena Vista Flying Club of Richland Center, Wisconsin, and flown by a Certified Flight Instructor, nosed over following an overrun landing. The landing was made on runway 09 (2,129' x 40') at the Blackhawk Airport, Cottage Grove, Wisconsin. The airplane was substantially damaged and the pilot received minor injuries. The flight departed Richland Center, Wisconsin, under VFR conditions without a flight plan at 1230 central standard time. The pilot stated that while en route he requested the weather conditions from the Madison Air Traffic Control Approach Control. He stated he also requested an airport advisory from Unicom but received no response and that the windsock was indicating a wind from 030 degrees. He elected to land on runway 09. As the airplane was slowing, according to the pilot, it contacted a patch of ice and slide sideways. The airplane straightened out and slid off the end of the runway where it contacted a snowbank and nosed over. The airplane came to rest on a road near the end of the runway. Winds reported at the Dane County Regional Airport, 9 miles from the accident site, were 330 degrees at 15 knots. ## Aircraft - Registration: [N84603](https://openairdocs.org/deregistered/N84603-1997-09-01), registration cancelled 1997-09-01, S/N 17258545 (OpenAirDocs) - Reported make and model: CESSNA 172 - Registry model: [Cessna 172K](https://openairdocs.org/model/cessna-172k) (registry code 2072430) (OpenAirDocs) - Category: Airplane - Serial number: 17258545 - Engines: LYCOMING O-320-E2D 150 horsepower reciprocating - Damage: Destroyed - Flight: Personal, Part 91 - Registered owner: Buena Vista Flying Club - Airworthiness certificate: Standard, Normal - Last inspection: Annual, January 11, 1994 - Departed: LNR, LONE ROCK, WI - Destination: 52C - Airport: 52C, Blackhawk, runway 9, 2,129 × 40 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 23; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 383 total, 150 in this make and model, 176 as pilot in command, 54 in the last 90 days, 17 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 330° at 15 knots - Visibility: 10 statute miles - Lowest ceiling: 2,900 ft overcast - Temperature: 27 °F, dew point 23 °F - Altimeter: 29.00 inHg - Observed at: MDS, 9 nm away ## 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 19950120048109A](https://openairdocs.org/incident/19950120048109A), Jan 20, 1995: Cessna 172K, Cottage Grove, WI, No damage. (-23) On January 20, 1995, about 1300 central standard time, a Cessna 172, N84603, received substantial damage following a long landing touch down on a… 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.