# NTSB WPR25LA179: Stinson 108-2, N9550K, East Wenatchee, WA, June 13, 2025 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: June 13, 2025, 14:07 local (21:07 UTC) - Place: East Wenatchee, WA · airport environment - Coordinates: 47.398806, -120.20683 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=47.3988&lon=-120.2068&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: 4 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 Adminstratition - NTSB case key (mKey): 200335 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR25LA179 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/200335/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=200335 - Page: https://openairdocs.org/ntsb/WPR25LA179 ## Probable cause The pilot’s failure to maintain directional control during the landing roll with a left crosswind. ## 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: [Stinson 108, 7 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=9230402), [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 · Not attained/maintained (probable cause); cases with it: [Stinson 108, 5 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=9230402), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Stinson 108, 2 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=9230402), [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-flare/touchdown: Other weather encounter](https://openairdocs.org/ntsb-events/400); cases with it: [Stinson 108, 2 cases](https://openairdocs.org/ntsb-events/400/sequence.md?model=9230402), [All aircraft, 1,127 cases](https://openairdocs.org/ntsb-events/400/sequence.md) - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Stinson 108, 7 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=9230402), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [Stinson 108, 1 case](https://openairdocs.org/ntsb-events/060/sequence.md?model=9230402), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Stinson 108, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=9230402), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) ## Analysis The pilot of the tailwheel-equipped airplane reported that he and his three passengers were returning to the airport after a local area flight. During the landing flare, the left wing lifted, and the airplane touched down on the right main landing gear tire, side loading the landing gear. The pilot was not able to level the airplane, and the tail began to drift to the right, which increased the side load to the right main landing gear. As a result, the right main landing gear collapsed, and the right wing and propeller struck the runway. The pilot reported no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. At the time of the accident, the pilot was landing on runway 30 with wind from 230° at 8 knots. ## Aircraft - Registration: [N9550K](https://openairdocs.org/aircraft/N9550K), registered now, S/N 108-2550, built 1947 (OpenAirDocs) - Reported make and model: STINSON 108-2 - Registry model: [Stinson 108](https://openairdocs.org/model/stinson-108) (registry code 9230402) (OpenAirDocs) - Registry engine: [Franklin 6A4165 series](https://openairdocs.org/engine/franklin-6a4165-series) (registry code 27025, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 108-2550 - Year built: 1947 - Airframe hours: 2700 - Engines: FRANKLIN 6A4-165-B3 165 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, October 13, 2024, 15 hours before - Destination: Same as departure - Airport: EAT, Pangborn Meml, runway 12/30, 7,000 × 150 ft, asphalt - Equipment: Electronic flight bag or handheld device, ADS-B, Satellite tracking device, Onboard weather ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 35; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review March 7, 2024; seat: left; restraint: 3-point; flight hours: 131.9 total, 8.6 in this make and model, 35.6 as pilot in command, 6.33 in the last 90 days, 5 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 230° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 75 °F, dew point 39 °F - Altimeter: 29.84 inHg - Observed at: KEAT - METAR: KEAT 132055Z AUTO 23008KT 10SM CLR 24/04 A2984 RMK AO2 SLP098 T02390039 56010 ## 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 20250613007659A](https://openairdocs.org/incident/20250613007659A), Jun 13, 2025: Stinson 108, Wenatchee, WA, Substantial damage. During the landing flair aircraft experenced a cross-wind event on the left wing causing the right main gear to touch down. The induced side loading caused the… ## Docket (2 files) The files NTSB released with the investigation on August 21, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=200335. 4.3 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 10 pages, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19038374&FileExtension=pdf&FileName=WPR25LA179%206120%20Pilot%20Report_Redacted-Rel.pdf - Photos (item 2, PDF, 4 pages, 2.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19037823&FileExtension=pdf&FileName=WPR25LA179%20Photos_Redacted-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.