# NTSB CHI99LA132: Cessna 172M, N64373, Lake Geneva, WI, April 25, 1999 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: April 25, 1999, 13:50 local (18:50 UTC) - Place: Lake Geneva, WI - Coordinates: 42.579006, -88.419631 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.5790&lon=-88.4196&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report June 21, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 46169 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI99LA132 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/46169/pdf - Page: https://openairdocs.org/ntsb/CHI99LA132 ## Probable cause the student pilot's failure to maintain directional control during the landing. Factors contributing to this accident were the variable winds and the ditch. ## 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, pilot in command (cause) - weather condition - variable wind (contributing factor) - On ground/water encounter with terrain/water, landing - roll - terrain condition - ditch (contributing factor) ## Analysis The student pilot said that he was going to land at Grand Geneva Airport, Lake Geneva, Wisconsin. He said that after touching down and rolling out on the runway, he encountered a gust of wind and lost directional control to the left. The airplane went off of the side of the runway. Examination of the airplane revealed no anomalies. At the approximate time of the accident, Aviation Routine Weather Reporting (METAR) stations within a 30 mile radius of the accident site, described surface winds as 180 degrees magnetic at 8 knots. ## Factual narrative On April 25, 1999, at 1350 central daylight time (cdt), a Cessna 172M, N64373, operated by a student pilot, was substantially damaged when on landing the airplane departed the runway and impacted into a ditch. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under 14 CFR part 91. No flight plan was on file. The student pilot reported sustaining minor injuries. The cross-country flight originated at West Chicago, Illinois, at 1320 cdt. The student pilot said that he was going to land at Grand Geneva Airport, Lake Geneva, Wisconsin. He said that after touching down and rolling out on the runway, he encountered a gust of wind and lost directional control to the left. The airplane went off of the side of the runway. A Federal Aviation Administration (FAA) inspector examined the airplane at the scene. The airplane was found resting upright, with the nose and propeller buried in a ditch approximately 100 feet left of the prepared surface of runway 23 (4,100 X 75) at Grand Geneva Airport. The airplane had departed the runway approximately 1,000 feet down from the approach end. The airplane's nose gear was broken aft. The right wing was bent aft at the wing root. The right wing tip was broken. The right flap was bent. The right rear and side windows were broken inward. The left wing was bent aft at the wing tip. The left wing leading edge was pushed inward 3 inches at the pitot tube. Flight control continuity was confirmed. Examination of the airplane's engine, engine controls, and other airplane systems revealed no anomalies. At 1345 cdt, the Aviation Routine Weather Report (METAR) at Janesville, Wisconsin, located 30 miles west of the accident site, reported surface winds of 180 degrees magnetic at 7 knots. At 1353 cst, the METAR at Kenosha, Wisconsin, located 19 miles east of the accident site, reported surface winds of 180 degrees magnetic at 8 knots. ## Aircraft - Registration: N64373 (not matched to a registry record) - Reported make and model: Cessna 172M - Category: Airplane - Serial number: 172-65201 - Airframe hours: 4632 - Engines: Lycoming O-320-E2D 150 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Cougar Aviation - Registered owner: Thomas J. Littlejohn - Airworthiness certificate: Standard, Normal - Last inspection: Annual, August 24, 1998 - Departed: DPA, WEST CHICAGO, IL - Destination: C02 - Flight plan: Unknown - Airport: C02, Grand Geneva Airport, runway 23, 4,100 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 33; student; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 52 total, 28 in this make and model, 13 as pilot in command, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 7 knots - Visibility: 15 statute miles - Lowest ceiling: none - Temperature: 57 °F, dew point 34 °F - Altimeter: 30.00 inHg - Observed at: JVL, 30 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 19990425003969A](https://openairdocs.org/incident/19990425003969A), Apr 25, 1999: Cessna 172M, Geneva, WI, Substantial damage. On April 25, 1999, at 1350 central daylight time (CDT), a Cessna 172M, N64373, operated by a student pilot, was substantially damaged when on landing the… 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.