# NTSB WPR24LA140: Michael Milburn Vans RV8, N740MT, Cascade, MT, May 4, 2024 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: May 4, 2024, 18:15 UTC - Place: Cascade, MT - Coordinates: 47.2115, -111.72766 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=47.2115&lon=-111.7277&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096) - 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: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 194212 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR24LA140 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/194212/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=194212 - Page: https://openairdocs.org/ntsb/WPR24LA140 ## Probable cause The pilot’s failure to maintain aircraft control during landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Michael Milburn VANS RV8, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05639TK), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/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: Nose over/nose down](https://openairdocs.org/ntsb-events/096) (defining event); cases with it: [Michael Milburn VANS RV8, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=05639TK), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot of the tailwheel-equipped airplane stated that after he performed a normal three-point landing on a grass airstrip, he began to apply brakes and aft control stick input. As the airplane decelerated to a slow speed, it nosed over and came to rest inverted. The airplane sustained substantial damage to its right wing, fuselage, and vertical stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that precluded normal operation. ## Aircraft - Registration: [N740MT](https://openairdocs.org/aircraft/N740MT), registered now, S/N 82050, built 2021 (OpenAirDocs) - Reported make and model: MICHAEL MILBURN VANS RV8 - Registry model: [Michael Milburn VANS RV8](https://openairdocs.org/model/michael-milburn-vans-rv8) (registry code 05639TK) (OpenAirDocs) - Registry engine: [Lycoming YO-360-A1A](https://openairdocs.org/engine/lycoming-yo-360-a1a) (registry code 41586, 4 cycle) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 82050 - Year built: 2021 - Airframe hours: 134.2 - Engines: Lycoming YO-360-A1A 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special); Standard, Aerobatic - Last inspection: Condition, June 7, 2023, 30.2 hours before - Airport: N/A, Private Strip - Equipment: Electronic primary flight display, Angle of attack indicator, ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 71; injuries: none; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review November 30, 2023; seat: front; restraint: 3-point; flight hours: 7,325 total, 106 in this make and model, 6,032 as pilot in command, 6 in the last 90 days, 1 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 120° at 11 knots, gusting 15 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 57 °F, dew point 27 °F - Altimeter: 29.83 inHg - Observed at: K1IM, 12 nm away - METAR: K1IM 041755Z AUTO 12011G15KT 10SM CLR 14/M03 A2983 RMK AO2 SLPNO T01381026 10139 20088 $ ## 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 20240504003799A](https://openairdocs.org/incident/20240504003799A), May 4, 2024: Michael Milburn VANS RV8, Cascade, MT, Substantial damage. Iaw: 8900.1VOL 7 ch 1 sec 1 Description of the deviation: On may 4, 2024, the [privacy data omitted] of a vans RV-8, registration [privacy data omitted], was… ## Docket (2 files) The files NTSB released with the investigation on February 27, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=194212. 2.1 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18256485&FileExtension=pdf&FileName=6120%20Flattened_Redacted-Rel.pdf - Investigation photographs (item 2, PDF, 4 pages, 3 photos, 584 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18256495&FileExtension=pdf&FileName=Investigation%20Photographs-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.