# NTSB FTW93LA223: Beech 35-33, N864R, Guymon, OK, August 1, 1993 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 1, 1993, 12:45 local (17:45 UTC) - Place: Guymon, OK - Coordinates: 36.680458, -101.480628 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=36.6805&lon=-101.4806&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 4 uninjured - Status: Completed, report September 30, 1994 - Report: Approved by Office Director - NTSB case key (mKey): 18802 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW93LA223 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18802/pdf - Page: https://openairdocs.org/ntsb/FTW93LA223 ## Probable cause THE PILOT'S INADEQUATE COMPENSATION FOR WIND CONDITIONS. FACTORS WERE WINDSHEAR AND GUSTY CROSSWINDS. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Main gear collapsed, go-around (vfr) - weather condition - windshear (contributing factor) - weather condition - crosswind (contributing factor) - weather condition - gusts (contributing factor) - compensation for wind conditions - inadequate, pilot in command (cause) - landing gear,main gear - overload ## Analysis THE LAST EN ROUTE WEATHER REPORT RECEIVED BY THE PILOT INDICATED THE WINDS WERE FROM 040 DEGREES AT 10 KNOTS GUSTING TO 25 KNOTS. THE NEAREST WEATHER STATION REPORTED THE WINDS FROM 080 DEGREES AT 19 KNOTS GUSTING TO 25 KNOTS. DURING APPROACH AND LANDING FLARE TO RUNWAY 36 THE AIRPLANE ENCOUNTERED WINDSHEAR AND GUSTING WINDS AND THE PILOT INITIATED A GO AROUND. HOWEVER THE AIRPLANE CONTACTED THE RUNWAY, THE LEFT MAIN LANDING GEAR COLLAPSED AND THE AIRPLANE SLID OFF THE LEFT SIDE OF THE RUNWAY. ## Factual narrative On August 1, 1993, at approximately 1245 central daylight time, a Beech 35-33, N864R, sustained substantial damage near Guymon, Oklahoma, following a loss of control during a go around in gusty crosswinds. The private pilot and three passengers did not receive injuries. Visual meteorological conditions prevailed for the personal cross country flight. The nearest weather reporting station at the time of the accident was reporting the winds from 080 degrees at 19 knots gusting to 25 knots. Witnesses at the site reported the winds variable and gusting in excess of 25 knots. The Pilot/Operator Report revealed the following information. The flight departed Cheyenne, Wyoming, earlier that day. The pilot received enroute weather from flight watch. Approximately 10 miles northweast of Guymon, Oklahoma, the pilot obtained the local weather over the airport unicom frequency. Winds were reported from 040 degrees at 10 knots gusting to 25 knots. On final approach to runway 36, the airplane encountered moderate turbulence. During the landing flare, the airplane encountered windshear. As the pilot initiated a go around, the left main gear impacted the runway and collapsed. The airplane slid on the ground and came to rest off the left side of the runway. ## Aircraft - Registration: [N864R](https://openairdocs.org/aircraft/N864R), registered now, S/N CD-19, built 1959 (OpenAirDocs) - Reported make and model: BEECH 35-33 - Registry model: [Beech 35-33](https://openairdocs.org/model/beech-35-33) (registry code 1151402) (OpenAirDocs) - Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: CD-19 - Airframe hours: 1388 - Engines: CONTINENTAL IO-470-J 225 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Coffman, John P. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 10, 1993, 37 hours before - Departed: CYS, CHEYENNE, WY - Flight plan: VFR - Airport: GUY, Guymon Municipal, runway 36, 4,299 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 30; private; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 414 total, 175 in this make and model, 367 as pilot in command, 53 in the last 90 days, 31 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 40° at 10 knots, gusting 25 - Visibility: 30 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point -0 °F ## 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 19930801027389A](https://openairdocs.org/incident/19930801027389A), Aug 1, 1993: Beech 3533, Guymon, OK, Substantial damage. Encountered windshear landing. Began go around. Left main gear hit runway and collapsed. Slid off runway. ## Other investigations on N864R (2) 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 CEN26LA029](https://openairdocs.org/ntsb/CEN26LA029), Oct 23, 2025: Beech 35-33 (N864R), Flippin, AR, substantial damage, investigation ongoing - [NTSB MIA66F0041](https://openairdocs.org/ntsb/MIA66F0041-177460), Jun 20, 1965: Beechcraft B33 (N864R), Powell, TN, substantial damage 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.