# NTSB SEA08CA118: Stinson 108-3, N1083, Libby, MT, May 2, 2008 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: May 2, 2008, 15:15 local (21:15 UTC) - Place: Libby, MT - Coordinates: 48.283889, -115.49028 - Nearby events: https://openairdocs.org/map.md?lat=48.2839&lon=-115.4903&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 June 30, 2008 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 67925 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA08CA118 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67925/pdf - Page: https://openairdocs.org/ntsb/SEA08CA118 ## Probable cause The pilot's inadequate compensation for the crosswind gusts and failure to maintain directional control during the landing rollout. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Not specified; cases with it: [Stinson 108-3, 3 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=9230408), [All aircraft, 1,014 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Not specified; cases with it: [Stinson 108-3, 5 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=9230408), [All aircraft, 1,201 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md) - [Performance/control parameters: crosswind correction](https://openairdocs.org/ntsb-findings/01062030): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Stinson 108-3, 1 case](https://openairdocs.org/ntsb-findings/01062030/cases.md?model=9230408), [All aircraft, 184 cases](https://openairdocs.org/ntsb-findings/01062030/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 108-3, 11 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=9230408), [All aircraft, 3,969 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Action: lack of action](https://openairdocs.org/ntsb-findings/02041030): Personnel issues › Action/decision · Pilot; cases with it: [Stinson 108-3, 1 case](https://openairdocs.org/ntsb-findings/02041030/cases.md?model=9230408), [All aircraft, 792 cases](https://openairdocs.org/ntsb-findings/02041030/cases.md) - [Runway/land/takeoff/taxi surface](https://openairdocs.org/ntsb-findings/03023000): Environmental issues › Physical environment · Not specified; cases with it: [Stinson 108-3, 1 case](https://openairdocs.org/ntsb-findings/03023000/cases.md?model=9230408), [All aircraft, 253 cases](https://openairdocs.org/ntsb-findings/03023000/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, 4,590 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, 2,289 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot was in the process of lowering the tail to the ground after touchdown when the airplane veered to the right. Adding left rudder to counter the yaw was unsuccessful, and the airplane veered off the right side of the runway and nosed over. The pilot reported "...close to touchdown I was getting bumped from side to side from crosswind gusts." The pilot said there were no mechanical malfunctions or failures. ## Factual narrative The pilot was in the process of lowering the tail to the ground after touchdown when the airplane veered to the right. Adding left rudder to counter the yaw was unsuccessful, and the airplane veered off the right side of the runway and nosed over. The pilot reported "...close to touchdown I was getting bumped from side to side from crosswind gusts." The pilot said there were no mechanical malfunctions or failures. ## Aircraft - Registration: [N1083](https://openairdocs.org/deregistered/N1083-2009-06-11), registration cancelled 2009-06-11, S/N 108-3535, 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: 108-3535 - Engines: Franklin 6A4165 reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Jon S Dunham - Registered owner: Michael L Helburg - Airworthiness certificate: Standard, Normal - Departed: S59, Libby, MT - Destination: S59, Libby, MT - Airport: S59, Libby Airport, runway 33, 5,000 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; injuries: minor; private; airplane ratings: single-engine land; medical: class 3; seat: left; flight hours: 203 total, 70 in this make and model, 0 in the last 90 days, 0 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 300° at 7 knots - 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 20080502833899A](https://openairdocs.org/incident/20080502833899A), May 2, 2008: Univar 1083, Libby, MT, Substantial damage. (-23) On March 02, 2008 at about 1515 mountain daylight time, a Stinson 108-3, N1083, [privacy data omitted] ground looped while landing on runway 33 at Libby… 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.