# NTSB WPR10CA109: Young Dee C Kitfox II, N345DY, St. Anthony, ID, January 12, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: January 12, 2010, 09:30 local (16:30 UTC) - Place: St. Anthony, ID - Coordinates: 43.96611, -111.68222 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=43.9661&lon=-111.6822&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report May 6, 2010 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration FSDO - NTSB case key (mKey): 75263 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10CA109 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/75263/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=75263 - Page: https://openairdocs.org/ntsb/WPR10CA109 ## Probable cause The pilot's improper landing flare, which resulted in a hard landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: landing flare](https://openairdocs.org/ntsb-findings/01062041): Aircraft › Aircraft oper/perf/capability · Incorrect use/operation (probable cause); cases with it: [Young Dee C KITFOX II, 1 case](https://openairdocs.org/ntsb-findings/01062041/cases.md?model=05613YO), [All aircraft, 1,285 cases](https://openairdocs.org/ntsb-findings/01062041/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Young Dee C KITFOX II, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05613YO), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241); cases with it: [Young Dee C KITFOX II, 1 case](https://openairdocs.org/ntsb-events/241/sequence.md?model=05613YO), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md) - [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092) (defining event); cases with it: [Young Dee C KITFOX II, 1 case](https://openairdocs.org/ntsb-events/092/sequence.md?model=05613YO), [All aircraft, 2,102 cases](https://openairdocs.org/ntsb-events/092/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Young Dee C KITFOX II, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=05613YO), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis The non-certificated pilot of the experimental airplane reported returning to the departure airport after a local flight. He entered the traffic pattern uneventfully, and on the final leg to land he reduced the engine power. The airplane passed over the runway threshold about 15 feet above ground level. The pilot stated that the airplane was in a forward right slip, and as he adjusted the airplane's attitude it stalled. The airplane landed hard and departed the runway; the main landing gear then struck an ice berm and the airplane nosed over. The airplane sustained substantial damage to the aft fuselage and vertical stabilizer. The pilot reported that the airplane and engine had no mechanical failures or malfunctions prior to the accident. ## Factual narrative The non-certificated pilot of the experimental airplane reported returning to the departure airport after a local flight. He entered the traffic pattern uneventfully, and on the final leg to land he reduced the engine power. The airplane passed over the runway threshold about 15 feet above ground level (agl). The pilot stated that the airplane was in a forward right slip, and as he adjusted the airplane's attitude it stalled. The airplane then landed hard and departed the runway. The main landing gear then struck an ice berm, and the airplane nosed over. The airplane sustained substantial damage to the aft fuselage and vertical stabilizer during the accident sequence. The pilot reported that the airplane and engine had no mechanical failures or malfunctions prior to the accident. ## Aircraft - Registration: [N345DY](https://openairdocs.org/deregistered/N345DY-2018-03-22), registration cancelled 2018-03-22, S/N KF345, built 2002 (OpenAirDocs) - Reported make and model: YOUNG DEE C KITFOX II - Registry model: [Young Dee C KITFOX II](https://openairdocs.org/model/young-dee-c-kitfox-ii) (registry code 05613YO) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: KF345 - Airframe hours: 99 - Engines: KFM 112 62 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, January 15, 2010 - Departed: U12, St. Anthony, ID - Destination: U12, St. Anthony, ID - Airport: U12, Stanford Field, runway 04, 4,500 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 65; injuries: none; seat: left; flight hours: 125 total, 99 in this make and model, 99 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 80° at 4 knots - Visibility: 10 statute miles - Temperature: 16 °F, dew point 10 °F - Altimeter: 30.20 inHg - Observed at: KRXE, 8 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 20100112025809A](https://openairdocs.org/incident/20100112025809A), Jan 12, 2010: Young, Dee KITFOX II, St. Anthony, ID, Substantial damage. During landing pilot loss control of a/c 10' off runway 4 at st Anthony, ID (U12). A/c bounced twice off centerline and veered to the left went into ice and… ## Docket (1 files) The files NTSB released with the investigation on February 12, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=75263. 318 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 318 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40325472&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.