# NTSB WPR10CA179: Stinson 108-3, N6063M, Lebanon, OR, March 25, 2010 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: March 24, 2010, 18:00 local (Mar 25, 2010, 01:00 UTC) - Place: Lebanon, OR - Coordinates: 44.527778, -122.929725 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.5278&lon=-122.9297&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: Minor injuries - Injuries: 1 minor - Status: Completed, report July 1, 2010 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: FAA (Portland FSDO) - NTSB case key (mKey): 75582 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10CA179 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/75582/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=75582 - Page: https://openairdocs.org/ntsb/WPR10CA179 ## Probable cause The pilot's failure to release his brake application after adding power to regain directional control during the landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: incorrect action performance](https://openairdocs.org/ntsb-findings/02041015): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Stinson 108-3, 3 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md?model=9230408), [All aircraft, 1,386 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Contributed to outcome; cases with it: [Stinson 108-3, 3 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=9230408), [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Contributed to outcome; cases with it: [Stinson 108-3, 5 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=9230408), [All aircraft, 1,199 cases](https://openairdocs.org/ntsb-findings/03034045/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: [Stinson 108-3, 12 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=9230408), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Stinson 108-3, 13 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=9230408), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Stinson 108-3, 9 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=9230408), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis The pilot of the tailwheel-equipped airplane completed a number of touch-and-go landings, and then made a full-stop landing so that he could taxi to the parking area to talk with some friends. When he took off again a few minutes later to do one final landing before putting the airplane away, he discovered that the wind speed had picked up and that he would be landing in a gusting crosswind. During the landing roll, which was along the leeward side of a row of hangars with occasional spaces between them, the airplane started turning toward the left side of the runway (into the wind). When the pilot found that full right brake and full right rudder was not enough to bring the airplane back to the right, he added a significant amount of engine power in an attempt to regain control. Although the airplane's ground track began to straighten after he added power, the pilot kept the right-wheel brake fully applied, resulting in the airplane attaining a nose-down attitude, whereupon the propeller began hitting the runway surface. With the propeller hitting the runway surface, the pilot found it necessary to reduce power, and therefore the airplane turned further left, and its left main wheel departed the left edge of the runway onto soft terrain. The left wheel then sank into the terrain, and with the right brake still fully applied, the airplane nosed over onto its back. The accident sequence resulted in substantial damage to the vertical stabilizer, left wing, and left wing lift strut. ## Factual narrative The pilot of the tailwheel-equipped airplane completed a number of touch-and-go landings, and then made a full-stop landing so he could taxi to the parking area to talk with some friends. When he took off again a few minutes later to do one final landing before putting the airplane away, he discovered that the wind speed had picked up, and that he would be landing in a gusting crosswind. During the landing roll, which was along the leeward side of a row of hangars with occasional spaces between them, the airplane started turning toward the left side of the runway (into the wind). When the pilot found that full right brake and full right rudder was not enough to bring the airplane back to the right, he added a significant amount of engine power in an attempt to regain control. Although the airplane's ground track began to straighten after he added power, the pilot kept the right wheel brake fully applied, resulting in the airplane attaining a nose-down attitude, whereupon the propeller began hitting the runway surface. With the propeller hitting the runway surface, the pilot found it necessary to reduce power, and therefore the airplane turned further left, and its left main wheel departed the left edge of the runway onto some soft terrain. The left wheel then sank into the terrain, and with the right brake still fully applied, the airplane nosed over onto its back. The accident sequence resulted in substantial damage to the vertical stabilizer, left wing, and left wing lift strut. ## Aircraft - Registration: [N6063M](https://openairdocs.org/aircraft/N6063M), registered now, S/N 108-4063, built 1947 (OpenAirDocs) - Reported make and model: STINSON 108-3 - Registry model: [Stinson 108-3](https://openairdocs.org/model/stinson-108-3) (registry code 9230408) (OpenAirDocs) - Registry engine: [Franklin 6A4165 series](https://openairdocs.org/engine/franklin-6a4165-series) (registry code 27025, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 108-4063 - Engines: Continental O-470-R 230 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Knox Larry D - Registered owner: Knox Larry D - Airworthiness certificate: Standard, Normal - Departed: S30, Lebanon, OR - Destination: S30, Lebanon, OR - Flight plan: Unknown - Airport: S30, Lebanon State, runway 34, 2,877 × 60 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 68; injuries: minor; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review October 24, 2009; seat: left; flight hours: 797 total, 35 in this make and model, 12 in the last 90 days, 6 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 8 knots, gusting 30 - Visibility: 10 statute miles - Lowest ceiling: none ## 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 20100324029989A](https://openairdocs.org/incident/20100324029989A), Mar 24, 2010: Stinson 108-3, Lebanon, OR, Substantial damage. The aircraft bounced several times on landing. The pilot lost control and the aircraft veered off the left side of the runway and flipped over. ## Docket (2 files) The files NTSB released with the investigation on March 31, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=75582. 1.1 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40327818&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Record of Conversation (item 2, .PDF, 53 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40327819&FileExtension=.PDF&FileName=Record%20of%20Conversation-Master.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.