# NTSB investigations, WY: In flight encounter with weather NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. Page 1 of 2 · 71 cases ## Latest cases - [NTSB DEN07FA140](https://openairdocs.org/ntsb/DEN07FA140.md): Cessna 182R · Dayton, WY · Accident · 3 fatal · Field investigation · Final report · Aug 20, 2007 · N6109N · Destroyed > the pilot's inability to maintain aircraft control while maneuvering in mountainous terrain due to gusty wind conditions, and lee side turbulence. Contributing to the accident was the pilot's improper in-flight planning and decision making, and his failure to… - [NTSB DEN07FA054](https://openairdocs.org/ntsb/DEN07FA054.md): Piper PA-28-180 · Centennial, WY · Accident · 3 fatal · Field investigation · Final report · Jan 18, 2007 · N43630 · Substantial damage > the pilot's inadvertent flight into adverse weather conditions resulting in a loss of aircraft control. Contributing factors include the pilot's improper preflight planning and decision making, the pilot's spatial disorientation, the pilot's lack of night… - [NTSB DEN07FA053](https://openairdocs.org/ntsb/DEN07FA053.md): Cessna 182R · Waltman, WY · Accident · 2 fatal · Field investigation · Final report · Jan 18, 2007 · N9937H · Destroyed > the pilot's continued visual flight rules (VFR) flight into instrument meteorological conditions (IMC) and failure to maintain terrain clearance resulting in controlled flight into terrain. Contributing factors were the pilot's improper preflight and… - [NTSB DEN06CA088](https://openairdocs.org/ntsb/DEN06CA088.md): Grumman-Schweizer G-164A · Cokeville, WY · Accident · Minor injuries · Data collection · Final report · Jun 14, 2006 · N9709 · Substantial damage > the pilot's failure to maintain directional control resulting in a ground loop. Contributing factors included the high winds and crosswind. - [NTSB DEN06FA001](https://openairdocs.org/ntsb/DEN06FA001.md): Beechcraft V35B · Barnum, WY · Accident · 2 fatal · Field investigation · Final report · Oct 4, 2005 · N9085Q · Destroyed > the pilot's improper in-flight planning and decision to continue flight into forecasted icing conditions and the pilot's inability to maintain aircraft control due to wing contamination in the form of ice. Contributing factors included the weather conditions… - [NTSB DEN05CA116](https://openairdocs.org/ntsb/DEN05CA116.md): Cessna 210E · Saratoga, WY · Accident · No injuries · Data collection · Final report · Jul 29, 2005 · N2361F · Substantial damage > the pilot's failure to maintain aircraft control and the pilot's improper preflight planning/preparation. Contributing factors include the pilot's failure to maintain airspeed resulting in an inadvertent stall/mush, the pilot's failure to calculate a weight… - [NTSB DEN05FA051](https://openairdocs.org/ntsb/DEN05FA051.md): Beech BE-90 · Rawlins, WY · Accident · 3 fatal · Field investigation · Final report · Jan 12, 2005 · N41WE · Destroyed > The pilot's inadvertent flight into adverse weather [severe icing] conditions, resulting in an aerodynamic stall impact with rising, mountainous terrain during approach. A factor contributing to the accident was the pilot's inadequate planning for the… - [NTSB DEN04FA074](https://openairdocs.org/ntsb/DEN04FA074.md): Piper PA-30 · Evanston, WY · Accident · 2 fatal · Field investigation · Final report · May 24, 2004 · N7460Y · Destroyed > the pilot's failure to maintain terrain clearance. Contributing factors include snow, low ceiling, icing conditions, and the dark night. - [NTSB DEN04FA079](https://openairdocs.org/ntsb/DEN04FA079.md): Mooney M20K · Pinedale, WY · Accident · 3 fatal · Field investigation · Final report · May 23, 2004 · N231DL · Destroyed > The pilot's inadvertent flight into adverse weather conditions, and his failure to maintain terrain clearance while maneuvering. Contributing factors were the downdraft, the snow shower weather and mountainous terrain. - [NTSB DEN03LA139](https://openairdocs.org/ntsb/DEN03LA139.md): Piper PA-28-161 · Crowheart, WY · Accident · No injuries · Limited investigation · Final report · Aug 6, 2003 · N2973T · Substantial damage > The pilot's inadequate preflight planning (attempting to exceed aircraft's published certificated performance), the pilot not obtaining sufficient altitude to clear the terrain (not possible), and the pilot's inadequate in flight planning/decision making.… - [NTSB DEN03LA092](https://openairdocs.org/ntsb/DEN03LA092.md): Hiller UH-12E · Cheyenne, WY · Accident · No injuries · Limited investigation · Final report · May 30, 2003 · N508SQ · Substantial damage > the pilot's failure to maintain aircraft control. A contributing to the accident was the sudden tailwind encountered. - [NTSB DEN02LA075](https://openairdocs.org/ntsb/DEN02LA075.md): American General AA5B · Worland, WY · Accident · Serious injuries · Limited investigation · Final report · Jul 13, 2002 · N28717 · Destroyed > the pilot's selection of an inadequate altitude for crossing mountainous terrain, resulting in a collision with trees. A contributing factor was the downdraft. - [NTSB DEN01FA070](https://openairdocs.org/ntsb/DEN01FA070.md): Beech A36 · Jackson Hole, WY · Accident · 4 fatal · Field investigation · Final report · Mar 12, 2001 · N1080A · Destroyed > the pilot's continued VFR flight into instrument meteorological conditions which resulted in an inflight collision with terrain during cruise flight. Factors were the pilot's inadequate preflight planning in that he failed to familiarize himself with the… - [NTSB DEN01FA030](https://openairdocs.org/ntsb/DEN01FA030.md): Hawker Siddeley HS-125-700 · Jackson, WY · Accident · No injuries · Field investigation · Final report · Dec 20, 2000 · N236BN · Substantial damage > The pilot's failure to follow IFR approach procedures and perform a missed approach when the runway was not in sight below approach minimums. Contributing factors were the copilot's failure to follow current ILS approach procedures and use the correct… - [NTSB DEN01FA028](https://openairdocs.org/ntsb/DEN01FA028.md): Cessna 172 · Lusk, WY · Accident · 2 fatal · Field investigation · Final report · Dec 16, 2000 · N4223F · Substantial damage > the pilot's VFR flight into instrument meteorological conditions, and his subsequent failure to maintain terrain clearance, which resulted in an in-flight collision with terrain. Contributing factors were the pilot's failure to obtain a weather briefing, low… - [NTSB DEN00LA165](https://openairdocs.org/ntsb/DEN00LA165.md): Gulfstream G-IV · Sheridan, WY · Accident · Serious injuries · Limited investigation · Final report · Sep 6, 2000 · N1625 · No damage > the pilot's inadvertent flight into unforecasted turbulent weather conditions. A contributing factor was the turbulence. - [NTSB DEN99FA012](https://openairdocs.org/ntsb/DEN99FA012.md): Piper PA-28-235 · Buffalo, WY · Accident · 2 fatal · Field investigation · Final report · Oct 19, 1998 · N8537N · Destroyed > The non-instrument rated pilot's initiated flight into adverse weather conditions and inadvertently flew into IMC weather conditions. Factors were the low ceiling weather conditions, the dark night light conditions, and a non operating VOR navigational aid. - [NTSB DEN99LA008](https://openairdocs.org/ntsb/DEN99LA008.md): Stinson 108-3 · Jackson Hole, WY · Accident · Minor injuries · Limited investigation · Final report · Oct 13, 1998 · N569C · Destroyed > The pilot's inability to maintain adequate airspeed which resulted in an inadvertent stall/mush. Factors contributing to the accident were the unfavorable weather condition, mountain wave and the high density altitude. - [NTSB FTW98LA176](https://openairdocs.org/ntsb/FTW98LA176.md): Cessna P206B · Riverton, WY · Accident · Serious injuries · Limited investigation · Final report · Apr 7, 1998 · N4728F · Destroyed > continued flight by the pilot into instrument meteorological conditions (IMC), and his failure to maintain sufficient altitude from terrain, while manuevering to reverse direction. Related factors were: the adverse weather conditions, mountainous terrain, and… - [NTSB FTW97LA310](https://openairdocs.org/ntsb/FTW97LA310.md): Waco KNF · Wamsutter, WY · Accident · No injuries · Limited investigation · Final report · Aug 15, 1997 · NC698N · Substantial damage > The pilot's failure to maintain directional control during the precautionary landing. A factor was a wind gust. - [NTSB SEA97FA033](https://openairdocs.org/ntsb/SEA97FA033.md): Beech B36TC · Jackson, WY · Accident · 1 fatal · Field investigation · Final report · Dec 8, 1996 · N3000R · Substantial damage > failure of the pilot to follow IFR procedures. High terrain, low ceiling, icing conditions, and a possible anomaly with the VOR were related factors. - [NTSB SEA97LA021](https://openairdocs.org/ntsb/SEA97LA021.md): Maule M-7-235 · Laramie, WY · Accident · No injuries · Limited investigation · Final report · Oct 25, 1996 · N5664Y · Substantial damage > VFR flight by the pilot into instrument meteorological conditions (IMC), his misjudged speed/distance on final approach for landing, and his failure to attain the proper touchdown point during the landing. Factors relating to the accident include snow, low… - [NTSB SEA96LA068](https://openairdocs.org/ntsb/SEA96LA068.md): Schweizer G-164B · Point Of Rocks, WY · Accident · 1 fatal · Limited investigation · Final report · Mar 13, 1996 · N3632T · Destroyed > the pilot's inadvertent VFR flight into instrument meteorological conditions (IMC), and his failure to maintain aircraft control due to spatial disorientation. Factors relating to the accident were: the low ceiling and snow. - [NTSB SEA95FA101](https://openairdocs.org/ntsb/SEA95FA101.md): Piper PA-34-200T · Cheyenne, WY · Accident · 1 fatal · Field investigation · Final report · May 17, 1995 · N2883D · Destroyed > failure of the pilot to maintain sufficient altitude/clearance from rising terrain. Factors relating to the accident were: low light conditions at dusk, low ceilings with thunderstorms in the area, and continued flight by the pilot into adverse weather… - [NTSB SEA95LA080](https://openairdocs.org/ntsb/SEA95LA080.md): Cessna 172L · Wheatland, WY · Accident · Minor injuries · Limited investigation · Final report · Apr 17, 1995 · N7011Q · Substantial damage > The pilot's continued flight into known adverse weather conditions. A factor in the accident was the airframe icing encountered during the flight. - [NTSB SEA94LA110](https://openairdocs.org/ntsb/SEA94LA110.md): Waco UPF-7 · Lander, WY · Accident · Minor injuries · Limited investigation · Final report · Apr 27, 1994 · N134Q · Substantial damage > Poor in-flight planning decision. Factors to the accident were: whiteout conditions and inadvertent VFR into IMC. - [NTSB SEA93FA187](https://openairdocs.org/ntsb/SEA93FA187.md): Cessna 180 · Cheyenne, WY · Accident · 3 fatal · Field investigation · Final report · Sep 2, 1993 · N3120C · Destroyed > Improper in-flight planning/decison by the pilot, which resulted in exceeding the design stress limits of the aircraft after encountering adverse weather. The weather conditions were related factors. - [NTSB SEA93LA043](https://openairdocs.org/ntsb/SEA93LA043.md): Cessna 150K · Moran Junction, WY · Accident · Minor injuries · Limited investigation · Final report · Dec 22, 1992 · N6072G · Destroyed > The pilot in command's attempting flight into known adverse weather conditions and his subsequent inability to maintain altitude. Factors contributing to the accident were icing conditions and trees. - [NTSB SEA93LA016](https://openairdocs.org/ntsb/SEA93LA016.md): Piper PA-28R-180 · Evanston, WY · Accident · No injuries · Limited investigation · Final report · Nov 5, 1992 · N4935J · Substantial damage > The pilot's disregard of hazardous weather advisory, resulting in flt into forecast icing conditions in an acft not equipped or certified for the flt, and the improper inflt planning by pilot during the VFR approach that resulted in impact with terrain short… - [NTSB DEN92FA076](https://openairdocs.org/ntsb/DEN92FA076.md): Aero Commander 560-F · Manville, WY · Accident · 4 fatal · Field investigation · Final report · Jul 23, 1992 · N560CM · Destroyed > A loss of control following flight into weather conditions containing thunderstorms, turbulence and icing conditions. Factors were: inaccurate weather evaluation and flight into known adverse weather by the pilot in command. - [NTSB SEA92LA044](https://openairdocs.org/ntsb/SEA92LA044.md): Lockheed P2V-7 · Dixon, WY · Accident · 2 fatal · Limited investigation · Final report · Feb 8, 1992 · N70600 · Destroyed > The pilot-in-command's continued VFR flight into instrument meteorological conditions which resulted in a loss of control due to the lack of aircraft attitude indicators and resultant pilot spatial disorientation. A factor which contributed to the accident… - [NTSB SEA91LA134](https://openairdocs.org/ntsb/SEA91LA134.md): Luscombe 8E · Rock Springs, WY · Accident · Minor injuries · Limited investigation · Final report · Jun 16, 1991 · N2587K · Substantial damage > The pilot's inadequate preflight planning and decision to attempt flights in unfavorable environmental codnitions. The environmental conditions were factors in the accident. - [NTSB DEN90LA168](https://openairdocs.org/ntsb/DEN90LA168.md): Gulfstream G-II · Cheyenne, WY · Accident · Serious injuries · Limited investigation · Final report · Jul 28, 1990 · N405MM · No damage > An unforeseen encounter with clear air turbulence. - [NTSB DEN90FA017](https://openairdocs.org/ntsb/DEN90FA017.md): Cessna 172RG · Laramie, WY · Accident · 1 fatal · Field investigation · Final report · Nov 1, 1989 · N4825V · Destroyed > The loss of control of the airplane in instrument meteorological conditions after the pilot became spatially disoriented. Contributing to the accident was the failure of the vacuum system which rendered the vacuum/gyro instruments inoperative. Also… - [NTSB DEN89FA222](https://openairdocs.org/ntsb/DEN89FA222.md): Cessna 172N · Afton, WY · Accident · 2 fatal · Field investigation · Final report · Sep 18, 1989 · N739XX · Destroyed > The non-instrument rated pilot's continued flight into instrument meteorological conditions (IMC) and his failure to maintain sufficient altitude to clear the terrain. Factors related to the accident were: darkness, adverse weather conditions, and… - [NTSB DEN89FA041](https://openairdocs.org/ntsb/DEN89FA041.md): Piper PA-28R-201T · Arvada, WY · Accident · 1 fatal · Field investigation · Final report · Dec 15, 1988 · N3110Q · Destroyed > The pilot entered clouds and shortly thereafter, crashed near the city of Arvada, WY. The flight consisted of two aircraft, flying together in loose formation, at night, under a layer of clouds. The plt of the lead acft estimated that about 2 min elapsed when… - [NTSB DEN88FA128](https://openairdocs.org/ntsb/DEN88FA128.md): Cessna 177RG · Afton, WY · Accident · 2 fatal · Field investigation · Final report · Dec 10, 1987 · N1868Q · Destroyed > The acft was not certified nor equipped for flt into icing conditions. The plt elected to depart even though he was advised by the crew of a C-182 that had just lndd to stay below the clouds because of icing. After tkof the acft cleared an 11000 ft mtn range… - [NTSB DEN87FA130](https://openairdocs.org/ntsb/DEN87FA130.md): Piper PA-31T-620II · Cody, WY · Accident · 3 fatal · Field investigation · Final report · May 20, 1987 · N2336X · Destroyed > N2336X was on a business flt to Cody, WY. The pilot executed a missed approach on the first attempt of the vor-a approach. A pilot who landed at Cody minutes before the accident said the visibility had decreased to 3/4 of a mi when N2336X made the first… - [NTSB DEN87FA050](https://openairdocs.org/ntsb/DEN87FA050.md): Cessna TR-182 · Moran, WY · Accident · 1 fatal · Field investigation · Final report · Feb 2, 1987 · N6089T · Destroyed > The pilot received several weather briefings prior to departure. Briefings included reports of icing conditions, low clouds and turbulence. VFR flight was not recommended. Plt departed VFR and filed IFR enroute to jackson. The pilot was issued instructions… - [NTSB DEN87FA017](https://openairdocs.org/ntsb/DEN87FA017.md): Piper PA-32-301T · Cheyenne, WY · Accident · Serious injuries · Field investigation · Final report · Nov 7, 1986 · N8216V · Substantial damage > The plt and his two pax were on a VFR x-country to scottsbluff, NE, when IMC was encountered near grand junction, CO. The plt then called ATC and obtained an IFR clearance. The plt elected to land at Cheyenne, WY. Wx was reported to be 500 overcast, 1/4 mi… - [NTSB DEN87FA008](https://openairdocs.org/ntsb/DEN87FA008.md): Mooney M20B · Buffalo, WY · Accident · 1 fatal · Field investigation · Final report · Oct 23, 1986 · N74739 · Destroyed > At aprx 1720 MDT, tower psnl at the dep arpt received a phone call from the plt. He said he wished to depart with an inop 2-WAY radio. He was advised that IMC prevailed & that a radio would be required to depart with an IFR or special VFR clnc. At 1907 (after… - [NTSB DEN86LA250](https://openairdocs.org/ntsb/DEN86LA250.md): Piper PA-18A-150 · Casper, WY · Accident · No injuries · Limited investigation · Final report · Sep 12, 1986 · N8595D · Substantial damage > While in normal cruise flt, after crossing a ridgeline, the plt encountered downdraft wind currents. The acft entered a descent from which the plt could not recover. He attempted to make an emergency forced landing in rough desert terrain. The acft impacted… - [NTSB DEN86LA168](https://openairdocs.org/ntsb/DEN86LA168.md): Cessna 172K · Bosler, WY · Accident · Minor injuries · Limited investigation · Final report · Jun 21, 1986 · N79221 · Substantial damage > According to the plt, the acft had just become airborne when it encountered a gust of wind while simultaneously crossing a gully, lost lift & descended until ground contact. The plt also indicated there was a 'density altitude problem.' The density altitude… - [NTSB DEN86FA137](https://openairdocs.org/ntsb/DEN86FA137.md): Beech BE-99C · Laramie, WY · Accident · No injuries · Field investigation · Final report · May 16, 1986 · N6728J · Substantial damage > This part 135 IFR flt was inbound for landing at Laramie, Wyoming. During the en route and approach for ldg portions of the flt the acft picked up a moderate to heavy load of ice. During the landing flare the acft stalled, hit the rwy, bounced, veered off the… - [NTSB DEN86FA112](https://openairdocs.org/ntsb/DEN86FA112.md): Cessna T-210N · Jay Em, WY · Accident · 3 fatal · Field investigation · Final report · Apr 9, 1986 · N6535N · Destroyed > The non-instrument rated plt took off on a VFR flt into an area of forecast adverse wx. Radar track of the acft at 9,700 feet MSL was lost in the vicinity of the accident site at 0930 MST, 4/9/86. The acft wreckage was located at 1155 MST, 4/10/86 and was… - [NTSB DEN86LA096](https://openairdocs.org/ntsb/DEN86LA096.md): Cessna R172K · Ft. Bridger, WY · Accident · No injuries · Limited investigation · Final report · Mar 9, 1986 · N736GS · Substantial damage > According to the plt, he and his passenger were ferrying an acft back to the point of origin after a sar mission for the civil air patrol, when they encountered IMC weather. The plt stated he was making a precautionary landing on a dirt road when the acft… - [NTSB DEN85LTM05](https://openairdocs.org/ntsb/DEN85LTM05.md): Interstate S-1A · Rock Springs, WY · Accident · Serious injuries · Final report · Aug 1, 1985 · N37438 · Substantial damage > While on a x-country flt, the acft encountered turbulence & downdrafts. The plt stated that at 1st, he was not concerned, but then it became apparent that the acft may impact the ground. The acft had limited power (75 HP) & the terrain elevation in that area… - [NTSB DEN85LA104](https://openairdocs.org/ntsb/DEN85LA104.md): Luscombe 8E · Casper, WY · Accident · No injuries · Limited investigation · Final report · Mar 31, 1985 · N2482K · Destroyed > Before reaching the destination, the acft encountered turbulence & the passenger became ill. The plt tried to land on the east-west rwy, but the x-wind was too strong, so he then entered a pattern for rwy 3. After turning into the wind for a landing, the acft… - [NTSB DEN85LA064](https://openairdocs.org/ntsb/DEN85LA064.md): Cessna 182Q · Wapiti, WY · Accident · Serious injuries · Limited investigation · Final report · Jan 14, 1985 · N759WB · Destroyed > According to the pilot as she was flying her aircraft in a canyon she encountered downdrafts which pushed her aircraft down. She was unable to maintain her airspeed or altitude and elected to put the aircraft into the trees. - [NTSB DEN85FA017](https://openairdocs.org/ntsb/DEN85FA017.md): Cessna 414 · Cheyenne, WY · Accident · Serious injuries · Field investigation · Final report · Oct 23, 1984 · N1569T · Substantial damage > The acft collided with the ground during a turn to final from a circling approach (IFR) at Cheyenne airport. According to ATC, the acft was a VFR 'pop up' & was subsequently issued an IFR clearance for an approach into the airport. Examination of the acft at… Next page: https://openairdocs.org/ntsb.md?state=WY&occurrence=240&page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1 WHERE c."eventStateOrRegion" = 'WY' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 240) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=240&state=WY --- 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.