# NTSB CHI07CA315: Aerotechnik Sportstar-Evektor, N806EV, Maple Lake, MN, September 30, 2007 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: September 30, 2007, 15:15 local (20:15 UTC) - Place: Maple Lake, MN - Coordinates: 45.235832, -93.985557 - Nearby events: https://openairdocs.org/map.md?lat=45.2358&lon=-93.9856&mi=10 - Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 2 minor - Status: Completed, report December 20, 2007 - Report: Approved by Office Director - Parties: MSP FSDO - NTSB case key (mKey): 66946 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI07CA315 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/66946/pdf - Page: https://openairdocs.org/ntsb/CHI07CA315 ## Probable cause The student pilot's failure to relinquish the flight controls and the flight instructor's inadequate supervision which resulted in the certified flight instructor not being able to maintain directional control. Contributing factors included the student pilot's failure to maintain directional control and the student pilot's total lack of experience. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, takeoff - initial climb - directional control - not maintained, dual student (contributing factor) - relinquishing of control - not performed, dual student (cause) - lack of total experience, dual student (contributing factor) - directional control - not possible, pilot in command(cfi) (contributing factor) - proper assistance - inadequate, pilot in command(cfi) (cause) - Nose over, descent - uncontrolled - terrain condition - ravine ## Analysis The airplane sustained substantial damage when it impacted the terrain during initial takeoff climb. The certified flight instructor (CFI) reported that the student pilot, who had a total of one hour of flight time, was attempting to takeoff on the first takeoff of the second instructional flight. The CFI reported that the airplane became airborne and "yawed hard to the left" when the airplane was about 20 - 30 feet above ground level. The CFI reported that he took control of the aircraft, but the student pilot pushed hard on the right pedal while attempting to push himself back into his seat. The airplane lost altitude and impacted a ravine on the right side of the runway in a level attitude, perpendicular to the runway. After the airplane nosed over, the CFI and student pilot exited the airplane through the broken canopy. ## Factual narrative The airplane sustained substantial damage when it impacted the terrain during initial takeoff climb. The certified flight instructor (CFI) reported that the student pilot, who had a total of one hour of flight time, was attempting to takeoff on the first takeoff of the second instructional flight. The CFI reported that the airplane became airborne and "yawed hard to the left" when the airplane was about 20 - 30 feet above ground level. The CFI reported that he took control of the aircraft, but the student pilot pushed hard on the right pedal while attempting to push himself back into his seat. The airplane lost altitude and impacted a ravine on the right side of the runway in a level attitude, perpendicular to the runway. After the airplane nosed over, the CFI and student pilot exited the airplane through the broken canopy. ## Aircraft - Registration: [N806EV](https://openairdocs.org/aircraft/N806EV), registered now, S/N 2006 0806, built 2006 (OpenAirDocs) - Reported make and model: Aerotechnik Sportstar-Evektor - Registry model: [Evektor-Aerotechnik SPORTSTAR](https://openairdocs.org/model/evektor-aerotechnik-sportstar) (registry code 0600012) (OpenAirDocs) - Registry engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 20060806 - Engines: Rotax 912 ULS 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Wright Aero Inc. - Registered owner: MTS Aircraft Corporation - Airworthiness certificate: Special, Special light-sport (Special) - Last inspection: 100 hour, September 1, 2007 - Departed: MGG, Maple Lake, NC - Destination: MGG - Flight plan: Military VFR - Airport: MGG, Maple Lake Municipal, runway 10, 2,796 × 60 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 23; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review August 1, 2007; seat: right; flight hours: 639 total, 33 in this make and model, 570 as pilot in command, 80 in the last 90 days, 53 in the last 30 days, 1 in the last 24 hours - Student pilot; age 52; injuries: none; student; flight hours: 1 total, 1 in this make and model, 1 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 150° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 64 °F, dew point 61 °F - Altimeter: 29.84 inHg - Observed at: MGG ## 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 20070930824709A](https://openairdocs.org/incident/20070930824709A), Sep 30, 2007: Amtr SPORTSTAR, Maple Lake, MN, Substantial damage. (-23) On 09/30/2007, at 1430 cdst, an evektor Sportstar, owned by m & s aircraft corp., and operated by the pilot [privacy data omitted] on a 14 CFR part 61… 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.