# NTSB CHI07CA295: Ekornaas, Fred SkyRanger II Kit, N819F, Bristol, WI, September 7, 2007 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Data collection · Final report - Date: September 7, 2007, 18:30 local (23:30 UTC) - Place: Bristol, WI - Coordinates: 42.525833, -88.035278 - Nearby events: https://openairdocs.org/map.md?lat=42.5258&lon=-88.0353&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 1 serious - Status: Completed, report October 31, 2007 - Report: Approved by Office Director - NTSB case key (mKey): 66811 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI07CA295 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/66811/pdf - Page: https://openairdocs.org/ntsb/CHI07CA295 ## Probable cause The pilot's improper recovery from a bounced landing and his failure to maintain directional control during the attempted go-around. An additional cause was the inadvertent stall as the pilot maneuvered to avoid the hangar. Contributing factors were the attempted go-around, the maneuver to avoid the hangar, and the presence of the hangar. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Hard landing, landing - recovery from bounced landing - improper, pilot in command (cause) - Loss of control - in flight, landing - flare/touchdown - go-around - attempted, pilot in command (contributing factor) - directional control - not maintained, pilot in command (cause) - In flight collision with terrain/water, landing - maneuver to avoid obstructions - attempted, pilot in command (contributing factor) - stall - inadvertent, pilot in command (cause) - object - hangar/airport building (contributing factor) ## Analysis The pilot was practicing high speed taxi operations on runway 27 (800 feet by 150 feet, turf) when the aircraft "took off unexpectedly." The pilot stated that he had gained too much altitude to safely land on the remaining runway, so he elected to fly a traffic pattern and return for landing. The pilot stated that upon touchdown the aircraft "bounced." He reported that he added power in order to avoid a stall; however, the aircraft "tracked left" and headed for some hangars. The pilot stated that in order to avoid the hangars he executed a "hard left turn" and subsequently stalled the airplane. The airplane impacted on its left wing, followed by "the ground, nose first on the right side." ## Factual narrative The pilot was practicing high speed taxi operations on runway 27 (800 feet by 150 feet, turf) when the aircraft "took off unexpectedly." The pilot stated that he had gained too much altitude to safely land on the remaining runway, so he elected to fly a traffic pattern and return for landing. The pilot stated that upon touchdown the aircraft "bounced." He reported that he added power in order to avoid a stall; however, the aircraft "tracked left" and headed for some hangars. The pilot stated that in order to avoid the hangars he executed a "hard left turn" and subsequently stalled the airplane. The airplane impacted on its left wing, followed by "the ground, nose first on the right side." ## Aircraft - Registration: [N819F](https://openairdocs.org/deregistered/N819F-2007-10-09), registration cancelled 2007-10-09, S/N SKR0602680, built 2006 (OpenAirDocs) - Reported make and model: Ekornaas, Fred SkyRanger II Kit - Registry model: [Skyranger SKYRANGER II](https://openairdocs.org/model/skyranger-skyranger-ii) (registry code 05901SO) (OpenAirDocs) - Registry engine: [Rotax 912 series](https://openairdocs.org/engine/rotax-912-series) (registry code 55569, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: SKR0602680 - Airframe hours: 0.2 - Engines: Rotax 912 80 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Fred Ekornaas - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, August 1, 2002, 0.2 hours before - Departed: WI58, Bristol, WI - Destination: WI58, Bristol, WI - Airport: WI58, Wingfield Airport, runway 27, 800 × 150 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 67; injuries: serious; private; airplane ratings: single-engine land; medical: sport pilot, with waivers/limitations; last flight review June 1, 2005; seat: left; flight hours: 465 total, 1 in this make and model, 450 as pilot in command, 1 in the last 90 days, 1 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 270° at 10 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 77 °F, dew point 64 °F - Altimeter: 29.87 inHg - Observed at: KENW, 6 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 20070907023429A](https://openairdocs.org/incident/20070907023429A), Sep 7, 2007: Amtr SKYRANGERII, Bristol, WI, Substantial damage. (-23) The pilot stated: he was doing high speed taxi tests with no intention to fly, when the aircraft left the ground unexpectedly. The pilot further 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.