# NTSB CEN22LA092: Cessna 172L, N4209Q, Minocqua, WI, January 3, 2022 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: January 2, 2022, 21:05 local (Jan 3, 2022, 03:05 UTC) - Place: Minocqua, WI - Coordinates: 45.927917, -89.730944 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=45.9279&lon=-89.7309&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Central Region - Parties: FAA FSDO - NTSB case key (mKey): 104487 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN22LA092 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104487/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=104487 - Page: https://openairdocs.org/ntsb/CEN22LA092 ## Probable cause The pilot’s loss of control during landing when the airplane encountered ice and snow on the runway. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Runway/land/takeoff/taxi surface: snow/slush/ice covered surface](https://openairdocs.org/ntsb-findings/03023015): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Cessna 172L, 2 cases](https://openairdocs.org/ntsb-findings/03023015/cases.md?model=2072432), [All aircraft, 219 cases](https://openairdocs.org/ntsb-findings/03023015/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cessna 172L, 24 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2072432), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Attain/maintain not possible (probable cause); cases with it: [Cessna 172L, 9 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2072432), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna 172L, 13 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072432), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490); cases with it: [Cessna 172L, 5 cases](https://openairdocs.org/ntsb-events/490/sequence.md?model=2072432), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Cessna 172L, 8 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=2072432), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot reported that while landing following a night instrument flight, on a known contaminated runway and employing aerodynamic braking, the airplane contacted a snow and ice patch and veered to the left. The airplane continued left until it contacted an unplowed snowbank on the left side of the runway and nosed over coming to rest inverted. The airplane sustained substantial damage to both wings, both ailerons, the vertical stabilizer, and rudder. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot reported that prior to the flight he had filed and instrument flight plan and was aware of a Notice to Airmen (NOTAM) that at most 10% of the runway had compacted snow. An area 60-ft wide was plowed and swept. ## Aircraft - Registration: [N4209Q](https://openairdocs.org/aircraft/N4209Q), registered now, S/N 17260109, built 1971 (OpenAirDocs) - Reported make and model: CESSNA 172L - 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: 17260109 - Year built: 1971 - Airframe hours: 4761.1 - Engines: Lycoming O-320 150 hp reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Lakeland Aviation Of Minocqua Inc - Airworthiness certificate: Standard, Utility; Standard, Normal - Last inspection: Annual, July 28, 2021, 23.7 hours before - Departed: KSTC, St. Cloud, MN - Destination: Same as departure - Flight plan: IFR - Airport: ARV, Lakeland/Noble F Lee Meml Fld, runway 36, 5,150 × 100 ft, asphalt - Equipment: Stall warning system, Electronic primary flight display, Electronic flight bag or handheld device, ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 42; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, waiver time limited special; last flight review August 4, 2021; seat: left; restraint: 3-point; flight hours: 310 total, 60 in this make and model, 264 as pilot in command, 27 in the last 90 days, 12 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Night/dark - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: -2 °F, dew point -24 °F - Altimeter: 30.14 inHg - Observed at: KARV - METAR: KARV 030255Z AUTO 00000KT 10SM CLR M19/M31 A3014 RMK AO2 T11861315 ## 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 20220102000179A](https://openairdocs.org/incident/20220102000179A), Jan 2, 2022: Cessna 172L, Woodruff, WI, Substantial damage. Upon landing left of center line, pilot rolled on ice, lost control of aircraft and contacted snow berm. Aircraft flipped over contacting spinner, left and… ## Docket (2 files) The files NTSB released with the investigation on January 28, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=104487. 3.9 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 3.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13113313&FileExtension=pdf&FileName=NTSB%20form%206120_Redacted-Rel.pdf - Photo (item 2, PDF, 1 page, 1 photo, 341 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13113538&FileExtension=pdf&FileName=photo%201-Rel.pdf 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.