# NTSB ANC10CA051: Stinson 108-1, N136SP, Galena, AK, June 8, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: June 7, 2010, 16:30 local (Jun 8, 2010, 00:30 UTC) - Place: Galena, AK - Coordinates: 64.736114, -156.937225 - Nearby events: https://openairdocs.org/map.md?lat=64.7361&lon=-156.9372&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff-rejected takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report October 21, 2010 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: FAA FSDO-01 - NTSB case key (mKey): 76269 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC10CA051 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76269/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76269 - Page: https://openairdocs.org/ntsb/ANC10CA051 ## Probable cause The pilot's failure to maintain directional control during takeoff, resulting in a ground-loop, and collapse of the right main landing gear. ## 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: [Stinson 108-1, 10 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=9230404), [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: [Stinson 108-1, 10 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=9230404), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Contributed to outcome; cases with it: [Stinson 108-1, 4 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=9230404), [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. - [Takeoff-rejected takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Stinson 108-1, 13 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=9230404), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Takeoff-rejected takeoff: Aircraft structural failure](https://openairdocs.org/ntsb-events/337); cases with it: [Stinson 108-1, 1 case](https://openairdocs.org/ntsb-events/337/sequence.md?model=9230404), [All aircraft, 290 cases](https://openairdocs.org/ntsb-events/337/sequence.md) - [Takeoff-rejected takeoff: Dragged wing/rotor/float/other](https://openairdocs.org/ntsb-events/093); cases with it: [Stinson 108-1, 1 case](https://openairdocs.org/ntsb-events/093/sequence.md?model=9230404), [All aircraft, 319 cases](https://openairdocs.org/ntsb-events/093/sequence.md) ## Analysis The private pilot was taking off on a personal local flight, under Title 14, CFR Part 91. He reported that during takeoff, the airplane encountered a gust of wind which he was unable to counter with rudder and aileron. He said he pulled the throttle to abort the takeoff, but the airplane ground-looped to the left, the right main landing gear collapsed, and the right wing struck the ground. He said the right wing sustained substantial damage during the accident. He said there were no mechanical problems with the airplane prior to the accident. ## Factual narrative The private pilot was taking off on a personal local flight, under Title 14, CFR Part 91. The pilot reported that during takeoff, the airplane encountered a gust of wind which he was unable to counter with rudder and aileron. He said he pulled the throttle to abort the takeoff, but the airplane ground-looped to the left, the right main landing gear collapsed, and the right wing struck the ground. He said there were no mechanical problems with the airplane prior to the accident. He said the right wing sustained substantial damage during the accident. ## Aircraft - Registration: [N136SP](https://openairdocs.org/aircraft/N136SP), registered now, S/N 108-931, built 1946 (OpenAirDocs) - Reported make and model: STINSON 108-1 - Registry model: [Stinson 108-1](https://openairdocs.org/model/stinson-108-1) (registry code 9230404) (OpenAirDocs) - Registry engine: [Franklin 6A4150 series](https://openairdocs.org/engine/franklin-6a4150-series) (registry code 27024, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 108-931 - Airframe hours: 2170 - Engines: FRANKLIN 6A4150 SERIES 150 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Roger Huntington - Registered owner: Roger Huntington - Airworthiness certificate: Standard, Normal - Last inspection: Annual, February 18, 2010 - Departed: PAGA, Galena, AK - Destination: PAGA, Galena, AK - Airport: PAGA, Galena, runway 07, 7,249 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review October 6, 2009; seat: left; flight hours: 8,034 total, 63 in this make and model, 34 in the last 90 days, 22 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 330° at 10 knots, gusting 15 - Visibility: 25 statute miles - Lowest ceiling: none - Temperature: 64 °F - Altimeter: 30.00 inHg ## 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 20100607037389A](https://openairdocs.org/incident/20100607037389A), Jun 7, 2010: Stinson 108-1, Galena, AK, Substantial damage. Ground loop on takeoff from Galena Airport. No contributing factors. ## Other investigations on N136SP (1) 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 ANC10CA010](https://openairdocs.org/ntsb/ANC10CA010), Dec 18, 2009: Stinson 108-1 (N136SP), Selawik, AK, substantial damage. Probable cause: The pilot's failure to maintain a proper descent rate during landing, resulting in a hard landing. ## Docket (1 files) The files NTSB released with the investigation on July 16, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76269. 657 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 657 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40333163&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-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.