# NTSB CEN12CA329: Brumbaugh B/Kasowski L Avid Flyer IV, N85AY, Pryor, OK, May 29, 2012 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: May 29, 2012, 09:45 local (14:45 UTC) - Place: Pryor, OK - Coordinates: 36.225276, -95.330001 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=36.2253&lon=-95.3300&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Defining event: [Taxi: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report August 15, 2012 - Report: Approved by Office Director - NTSB office: Central Region - NTSB case key (mKey): 83794 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN12CA329 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/83794/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=83794 - Page: https://openairdocs.org/ntsb/CEN12CA329 ## Probable cause The pilot's failure to maintain directional control during a high speed taxi. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Brumbaugh B/Kasowski L AVID FLYER IV, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05623RU), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Brumbaugh B/Kasowski L AVID FLYER IV, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=05623RU), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Taxi: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Brumbaugh B/Kasowski L AVID FLYER IV, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05623RU), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Taxi: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Brumbaugh B/Kasowski L AVID FLYER IV, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=05623RU), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot was performing a high speed taxi before an intended local flight. During the high speed taxi, the airplane's tail rose off the ground, and the pilot reduced power. During the subsequent rollout, the tailwheel started to shimmy, and the pilot applied left and right rudder. The airplane veered left, exited the runway, went down a steep slope, and impacted the side of a drainage ditch, which resulted in substantial damage to the wings and fuselage. The pilot reported no mechanical malfunctions. ## Factual narrative The pilot was performing a high speed taxi prior to an intended local flight. During the high speed taxi, the airplane's tail rose off the ground and the pilot reduced power. During the subsequent rollout, the tailwheel started to shimmy and the pilot applied left and right rudder. The airplane veered left and exited the runway, went down a steep slope and impacted the side of a drainage ditch, where it sustained substantial damage to its wings and fuselage. The pilot reported no mechanical malfunctions. ## Aircraft - Registration: [N85AY](https://openairdocs.org/deregistered/N85AY-2018-03-07), registration cancelled 2018-03-07, S/N 984, built 1994 (OpenAirDocs) - Reported make and model: BRUMBAUGH B/KASOWSKI L AVID FLYER IV - Registry model: [Brumbaugh B/Kasowski L AVID FLYER IV](https://openairdocs.org/model/brumbaugh-b-kasowski-l-avid-flyer-iv) (registry code 05623RU) (OpenAirDocs) - Registry engine: [Bombardier ROTAX (ALL)](https://openairdocs.org/engine/bombardier-rotax-all) (registry code 09050, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 984 - Airframe hours: 381 - Engines: Rotax 582 65 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Pilot - Registered owner: Pilot - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, May 25, 2012 - Departed: H71, Pryor, OK - Destination: H71, Pryor, OK - Airport: H71, Mid-America Industrial Airport, runway 18, 5,000 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 51; injuries: minor; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: sport pilot, without waivers/limitations; last flight review April 21, 2012; seat: left; flight hours: 820 total, 4 in this make and model, 780 as pilot in command, 2 in the last 90 days, 2 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 64 °F - Altimeter: 29.93 inHg - Observed at: GCM ## 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 20120529009799A](https://openairdocs.org/incident/20120529009799A), May 29, 2012: Brumbaugh B/Kasowski L AVID FLYER IV, Pryor, OK, Substantial damage. Aircraft was on landing touchdown rollout when it veered to the left and departed runway into a ditch. Conducted airman counseling regarding currency, aircraft… ## Docket (2 files) The files NTSB released with the investigation on June 21, 2012, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=83794. 878 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 780 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40369910&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Miscellaneous - Local Weather (item 2, .PDF, 98 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40369909&FileExtension=.PDF&FileName=Miscellaneous%20-%20Local%20Weather-Master.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.