# NTSB DFW05CA006: Gunnoe Velocity, N92VA, Myrick, OK, October 16, 2004 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: October 16, 2004, 18:01 local (23:01 UTC) - Place: Myrick, OK - Coordinates: 35.75, -97.400276 - Nearby events: https://openairdocs.org/map.md?lat=35.7500&lon=-97.4003&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 4 uninjured - Status: Completed, report January 24, 2005 - Report: Approved by Office Director - Parties: Oklahoma City, Oklahoma FSDO - NTSB case key (mKey): 60355 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DFW05CA006 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/60355/pdf - Page: https://openairdocs.org/ntsb/DFW05CA006 ## Probable cause The pilot's improper wind evaluation. Contributing factors were the tailwind and the short runway. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, takeoff - aborted - terrain condition - short runway/landing area (contributing factor) - weather evaluation - improper, pilot in command (cause) - weather condition - tailwind (contributing factor) - Main gear collapsed, takeoff - aborted - landing gear,main gear attachment - sheared (cause) - Loss of control - on ground/water, takeoff - aborted - On ground/water collision with object, takeoff - aborted - object - fence ## Analysis The 312-hour pilot reported that during takeoff, due to a shift in wind direction, his airspeed was not accelerating sufficiently, so he elected to abort the takeoff. Subsequently, the pilot applied heavy brakes to slow the airplane to a stop. The pilot added that the last third of the runway was patchy, and the bolt of the left main landing gear was sheared, and the airplane veered off to the left. The pilot was not able to slow the airplane in time, and the airplane collided with a cedar tree and fence approximately 20 feet past the end of the runway. ## Factual narrative On October 16, 2004, approximately 1801 central daylight time, a Gunnoe Velocity single-engine experimental airplane, N92VA, registered to and operated by the pilot, was substantially damaged when it collided with a fence following a runway overrun on an aborted takeoff from the Myrick Airport (33OK), a private airstrip near Myrick, Oklahoma. The private pilot and his three passengers were not injured. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The local flight was originating from 33OK at the time of the accident. In a telephone interview with an NTSB representative, the 312-hour private pilot reported that he took off from Runway 36 with three passengers aboard. The pilot stated that during the takeoff, approximately mid-runway, "the surface wind shifted from a direction of approximately 360 degrees to 180 degrees." Approximately two-thirds down the 2,600-feet long by 60-feet wide grass runway, the pilot noticed that the "airspeed indicator decreased 3-4 miles per hour," and he elected to abort the takeoff. Subsequently, the pilot closed the throttle and applied heavy braking to bring the airplane to a stop. The pilot added that while decelerating, approximately 300-400 feet from the end of the runway, the left wing lowered, and the airplane began to veer hard to the left. The pilot then applied hard right brake and the airplane continued to pull approximately 10 degrees to the left. The pilot continued to apply pressure to the right brake and flipped the master switch and magnetos to the "off" position. The pilot was not able to slow the airplane in time, and the left wing collided with a cedar tree and a fence. The airplane came to a stop approximately 20 feet past the end of the runway. The pilot cut-off the fuel before he opened the door and evacuated with his passengers. The Federal Aviation Administration (FAA) inspector that responded to the site of the accident reported that there was substantial damage to the mid-section of the left wing. The nose wheel was collapsed, and the bolt that holds the left main landing gear strut was sheared. Additionally, there was damage to the winglet/rudder of the left wing. In a written statement submitted to the NTSB, the pilot reported that "there was a front moving through on the day of the accident, and the wind shifted when the aircraft was on the runway." He also added that "the left main gear bolt broke" prior to the left wing lowering during the aborted takeoff. At 1753, the automated weather observing system at the Guthrie Municipal Airport (GOK), near Guthrie, Oklahoma, approximately 6 nautical miles north from the site of the accident, reported wind from 120 degrees at 7 knots, 10 statute miles visibility, sky clear, temperature 63 degrees Fahrenheit, dew point 37 degrees Fahrenheit, and a barometric pressure setting of 29.99 inches of Mercury. ## Aircraft - Registration: [N92VA](https://openairdocs.org/deregistered/N92VA-2011-04-08), registration cancelled 2011-04-08, S/N 001, built 1991 (OpenAirDocs) - Reported make and model: Gunnoe Velocity - Registry model: [Gunnoe James E JR VELOCITY](https://openairdocs.org/model/gunnoe-james-e-jr-velocity) (registry code 05618KB) (OpenAirDocs) - Registry engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 001 - Airframe hours: 412.6 - Engines: Lycoming IO-360-C1C6 200 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Joe P. Boudreau - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, September 4, 2004, 6.5 hours before - Departed: 330K, Myrick, OK - Destination: 3TO, Gordonville, TX - Airport: 330K, Myrick Arport, runway 36, 2,625 × 60 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 55; injuries: none; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; last flight review July 7, 2004; seat: left; flight hours: 312 total, 94 in this make and model, 23 in the last 90 days, 3 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 63 °F, dew point 37 °F - Altimeter: 29.98 inHg - Observed at: KGOK ## 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 20041016024309A](https://openairdocs.org/incident/20041016024309A), Oct 16, 2004: Amtr VELOCITY, Edmond, OK, Substantial damage. (-23) Pilot was departing for VFR trip to lake texhoma. Pilot aborted northerly takeoff and failed to maintain directional control of the aircraft. The… ## Other investigations on N92VA (1) 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. - [NTSB WPR09LA307](https://openairdocs.org/ntsb/WPR09LA307), Jun 19, 2009: Gunnoe Velocity (N92VA), Livermore, CA, substantial damage. Probable cause: The failure of the right brake due to a restricted brake rotor and subsequent brake fluid line failure as a result of inadequate maintenance. 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.