# NTSB SEA06CA106: Cessna 170B, N3477C, West Glacier, MT, May 21, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: May 21, 2006, 10:30 local (16:30 UTC) - Place: West Glacier, MT - Coordinates: 48.468139, -114.00013 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=48.4681&lon=-114.0001&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report October 3, 2006 - Report: Approved by Office Director - Parties: FAA FSDO - NTSB case key (mKey): 63936 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA06CA106 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/63936/pdf - Page: https://openairdocs.org/ntsb/SEA06CA106 ## Probable cause The pilot's failure to attain sufficient airspeed for flight, his attempt to abort the takeoff, and the airplane's subsequent departure off the end of the runway. Contributing factors were the impacted fence and vegetation, and his total lack of experience in type of operation. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, takeoff - aborted - airspeed - not attained, pilot in command (cause) - aborted takeoff - attempted, pilot in command (cause) - lack of total experience in type operation, pilot in command (contributing factor) - On ground/water collision with object, takeoff - aborted - object - fence (contributing factor) ## Analysis The pilot said that he applied full throttle, and after a few seconds of acceleration decided that he had insufficient runway and airspeed for a safe departure. He aborted the takeoff, departed the end of the runway, and impacted a fence and vegetation. The left elevator and horizontal stabilizer were bent, and the tail wheel main leaf spring was broken. The pilot had recently purchased the airplane, and had approximately 10 hours of flight experience in it. All his tail wheel flight experience was in this airplane; he had a total of approximately 113 hours flight experience. ## Factual narrative On May 21, 2006, at approximately 1030 mountain daylight time, a Cessna 170B, N3477C, was substantially damaged during a runway overrun following an aborted takeoff from a private airstrip near West Glacier, Montana. The private pilot and his two passengers were not injured. The pilot/owner was operating the airplane under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the personal, local flight which was originating at the time of the accident. A flight plan had not been filed. The pilot said that he applied full throttle, and after a few seconds of acceleration decided that he had insufficient runway and airspeed for a safe departure. He aborted the takeoff, departed the end of the runway, and impacted a fence and vegetation. The left elevator and horizontal stabilizer were bent, and the tail wheel main leaf spring was broken. The pilot had recently purchased the airplane, and had approximately 10 hours of flight experience in it. All his tail wheel flight experience was in this airplane; he had a total of approximately 113 hours flight experience. ## Aircraft - Registration: [N3477C](https://openairdocs.org/aircraft/N3477C), registered now, S/N 26520, built 1954 (OpenAirDocs) - Reported make and model: Cessna 170B - Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs) - Registry engine: [Franklin 6A4165 series](https://openairdocs.org/engine/franklin-6a4165-series) (registry code 27025, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 26520 - Engines: Franklin 6A165-B3 165 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Richard T. Moore - Airworthiness certificate: Standard, Utility; Standard, Normal - Last inspection: Annual, May 1, 2006, 15 hours before - Departed: NONE, West Glacier, MT - Destination: NONE - Airport: NONE, McClure Airstrip ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 36; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review November 1, 2005; seat: left; flight hours: 113 total, 10 in this make and model, 84 as pilot in command, 10 in the last 90 days, 10 in the last 30 days, 4 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 64 °F, dew point 48 °F - Altimeter: 29.80 inHg - Observed at: GPI, 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 20060521008029A](https://openairdocs.org/incident/20060521008029A), May 21, 2006: Cessna 170B, West Glacier, MT, Substantial damage. (-23) Pilot aborted take-off from a dirt strip. Aircraft rolled through small saplings and a fence at the departure end of the runway. 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.