# NTSB WPR10LA072: Stinson 108-3, N6649M, Clarksburg, CA, December 4, 2009 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: December 4, 2009, 15:30 local (23:30 UTC) - Place: Clarksburg, CA - Coordinates: 38.439167, -121.505279 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.4392&lon=-121.5053&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Landing area overshoot](https://openairdocs.org/ntsb-events/380) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report June 27, 2011 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Adminstration - NTSB case key (mKey): 75137 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10LA072 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/75137/pdf - Page: https://openairdocs.org/ntsb/WPR10LA072 ## Probable cause The pilot’s improper touchdown point and excessive airspeed during landing, which resulted in a runway overrun. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: descent/approach/glide path](https://openairdocs.org/ntsb-findings/01062040): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Stinson 108-3, 1 case](https://openairdocs.org/ntsb-findings/01062040/cases.md?model=9230408), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/01062040/cases.md) - [Object/animal/substance: tree(s)](https://openairdocs.org/ntsb-findings/03022020): Environmental issues › Physical environment · Not specified; cases with it: [Stinson 108-3, 3 cases](https://openairdocs.org/ntsb-findings/03022020/cases.md?model=9230408), [All aircraft, 933 cases](https://openairdocs.org/ntsb-findings/03022020/cases.md) - [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) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Landing area overshoot](https://openairdocs.org/ntsb-events/380) (defining event); cases with it: [Stinson 108-3, 1 case](https://openairdocs.org/ntsb-events/380/sequence.md?model=9230408), [All aircraft, 400 cases](https://openairdocs.org/ntsb-events/380/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) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Stinson 108-3, 15 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=9230408), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis Witnesses who spoke with the pilot immediately after the accident reported that he stated he approached the runway too high and too fast. The airplane overran the runway end and collided with blackberry bushes and a tree about 20-25 feet from the end of the runway. The firewall was substantially damaged. ## Factual narrative On December 4, 2009, about 1530 Pacific standard time (PST), a Stinson 108-3, N6649M, overran the end of the runway during landing, and collided with a tree at Borges-Clarksburg Airport (CN13), Clarksburg, California. The owner/pilot was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The private pilot was not injured, and the airplane sustained substantial damage to the firewall. The cross-country personal flight departed Hayward, California, at an unknown time. Visual meteorological conditions prevailed, and no flight plan had been filed. Witnesses, who spoke with the pilot immediately after the accident, reported that he stated he approached the runway too high and too fast, overrunning the end and colliding with brush and a tree. The airplane came to rest about 20-25 feet beyond the runway. The airplane was subsequently moved to the ramp area. Post accident examination by a Federal Aviation Administration (FAA) inspector revealed substantial damage to the airplane’s firewall. At the time of this report, the pilot had not submitted the National Transportation Safety Board (NTSB) Form 6120.1, Pilot/Operator Aircraft Accident/Incident Report, nor has the pilot responded to requests for information from the FAA. ## Aircraft - Registration: [N6649M](https://openairdocs.org/deregistered/N6649M-2013-07-16), registration cancelled 2013-07-16, S/N 108-4649, built 1948 (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: 108-4649 - Engines: FRANKLIN 6A4165 SERIES 165 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Departed: HWD, Hayward, CA - Destination: CN13, Clarksburg, CA - Airport: CN13, Borges-Clarksburg Airport, runway 09, 2,260 × 90 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 46; injuries: none; private; airplane ratings: single-engine land; medical: class 2 ## Weather - Conditions: Visual (VMC), Day - Wind: 320° at 3 knots - Visibility: 4 statute miles - Lowest ceiling: none - Temperature: 54 °F, dew point 43 °F - Altimeter: 30.12 inHg - Observed at: SAC, 3 nm away ## 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 20091204022189A](https://openairdocs.org/incident/20091204022189A), Dec 4, 2009: Univar 1083, Clarksburg, CA, Substantial damage. Aircraft N6649M was flown from hayward, CA to the Borges-clarkesburg airport on 12/4/09. The aircraft crashed on landing at Clarksburg. An eyewitness stated… 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.