# NTSB WPR10CA333: Cessna 180, N3642C, Missoula, MT, July 1, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 1, 2010, 16:30 local (22:30 UTC) - Place: Missoula, MT - Coordinates: 46.916389, -114.090553 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=46.9164&lon=-114.0906&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: 2 uninjured - Status: Completed, report October 21, 2010 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 76549 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10CA333 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76549/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76549 - Page: https://openairdocs.org/ntsb/WPR10CA333 ## Probable cause The pilot's inadequate compensation for the crosswind conditions and failure to maintain directional control during the landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna 180, 64 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2072602), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/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 180, 65 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2072602), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Response/compensation (probable cause); cases with it: [Cessna 180, 14 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=2072602), [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/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 180, 80 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072602), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot reported that during the landing roll the airplane encountered a gust of wind. The airplane veered to the right and the left wing scraped the ground. The airplane sustained substantial damage to the left wing, left wing rear spar, and left horizontal stabilizer. The pilot reported the wind as 350 degrees at 20 knots. ## Factual narrative In a written statement to the Federal Aviation Administration, the pilot reported that during the landing roll the airplane was struck by a gust of wind. The airplane veered to the right and the left wing scraped the ground. The airplane sustained substantial damage to the left wing, left wing rear spar, and left horizontal stabilizer. The pilot reported the wind as 350 degrees at 20 knots. Despite repeated attempts to obtain a Pilot/Operator Aircraft Accident/Incident Report Form (Form 6120.1) from the pilot, to this date this form has not yet been received by the Safety Board. ## Aircraft - Registration: [N3642C](https://openairdocs.org/aircraft/N3642C), registered now, S/N 31140, built 1954 (OpenAirDocs) - Reported make and model: CESSNA 180 - Registry model: [Cessna 180](https://openairdocs.org/model/cessna-180) (registry code 2072602) (OpenAirDocs) - Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 31140 - Engines: CONT MOTOR O-470 SERIES 230 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Paul E. Iverson - Registered owner: Paul E. Iverson - Airworthiness certificate: Standard, Normal - Departed: 8S1, Polson, MT - Destination: KMSO, Missoula, MT - Flight plan: Unknown - Airport: KMSO, Missoula, runway 29, 9,501 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 61; injuries: none; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; flight hours: 17,000 total, 7,000 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 310° at 9 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 77 °F, dew point 45 °F - Altimeter: 29.89 inHg - Observed at: KMSO ## 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 20100701039019A](https://openairdocs.org/incident/20100701039019A), Jul 1, 2010: Cessna 180, Missoula, MT, Substantial damage. On July 1, 2010, at 1628 mountain, a Cessna 180, N3642C, registered to [privacy data omitted], while on a landing roll out skided side ways and struck the left… ## Other investigations on N3642C (2) 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 DEN76DTM24](https://openairdocs.org/ntsb/DEN76DTM24), Mar 28, 1976: Cessna 180 (N3642C), Moab, UT, substantial damage - [NTSB DEN67D0096](https://openairdocs.org/ntsb/DEN67D0096), Aug 28, 1966: Cessna 180 (N3642C), Kemmerer, WY, substantial damage ## Docket (2 files) The files NTSB released with the investigation on August 3, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76549. 47 KB in all. - Pilot Statement (item 1, .PDF, 19 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334278&FileExtension=.PDF&FileName=Pilot%20Statement-Redacted.PDF - Passenger Statement (item 2, .PDF, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334279&FileExtension=.PDF&FileName=Passenger%20Statement-Redacted.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.