# NTSB investigations, WY 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 12 of 32 · 1,568 cases ## Cases, newest first - [NTSB DEN90LA123](https://openairdocs.org/ntsb/DEN90LA123.md): Piper PA-18-150 · Douglas, WY · Accident · No injuries · Limited investigation · Final report · Jun 4, 1990 · N4720A · Substantial damage > The accident to be improper installation of aileron control system by maintenance personnel, and failure to perform an aircraft preflight by the pilot in command. - [NTSB DEN90IA072](https://openairdocs.org/ntsb/DEN90IA072.md): Cessna 208A · Wright, WY · Incident · No injuries · Incident investigation · Final report · Mar 6, 1990 · N812FE · No damage > The incident was engine failure due to gas producer turbine disc blade failure caused by stress rupture. - [NTSB DEN90LA026](https://openairdocs.org/ntsb/DEN90LA026.md): Cessna T210L · Gillette, WY · Accident · Minor injuries · Limited investigation · Final report · Nov 22, 1989 · N843YT · Substantial damage > Forced landing in unsuitable terrain as a result of an engine crankshaft failure at low level cruise flight. - [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 DEN89LA186](https://openairdocs.org/ntsb/DEN89LA186.md): Beech P35 · Lovell, WY · Accident · Minor injuries · Limited investigation · Final report · Aug 6, 1989 · N9661Y · Substantial damage > Improper in-flight planning/decision by the pilot, which resulted in insufficient altitude to continue out of the canyon or turn around. The terrain and high density altitude were related factors. - [NTSB DEN89LA171](https://openairdocs.org/ntsb/DEN89LA171.md): Piper PA-28-161 · Alpine, WY · Accident · No injuries · Limited investigation · Final report · Jul 15, 1989 · N21170 · Substantial damage > Pilot's decision to land at an unlighted airport at night. The aircraft landed long and overran the runway. - [NTSB DEN89LA165](https://openairdocs.org/ntsb/DEN89LA165.md): Henry Vickers HCV-110 · Newcastle, WY · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1989 · N4831N · Substantial damage > The failure to the magneto. The selection of a powerplant with a single magneto system was an improper choice and directly contributed to the cause. The pilot's misjudgement of the wind for the approach to a forced landing resulted in an improper ground… - [NTSB DEN89LA153](https://openairdocs.org/ntsb/DEN89LA153.md): Stitts SA7D · Evanston, WY · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N1113E · Substantial damage > Improper compensation by the pilot for wind conditions. Contributing factors were: high density altitude, unfavorable wind, and downdraft. - [NTSB DEN89LA147](https://openairdocs.org/ntsb/DEN89LA147.md): Beech A24R · Evanston, WY · Accident · No injuries · Limited investigation · Final report · Jun 25, 1989 · N24607 · Substantial damage > The pilot became disoriented and delayed in taking remedial action, which resulted on a critically low fuel level. A factor related to the accident was: rough/uneven terrain in the emergency landing area. - [NTSB DEN89FA146](https://openairdocs.org/ntsb/DEN89FA146.md): Beech 35 · Glenrock, WY · Accident · 1 fatal · Field investigation · Final report · Jun 24, 1989 · N1887D · Substantial damage > Proper altitude not maintained by the pilot. The weather/night conditions and pilot fatigue were considered to be contributing factors. - [NTSB DEN89LA122](https://openairdocs.org/ntsb/DEN89LA122.md): Cessna 175 · Sheridan, WY · Accident · No injuries · Limited investigation · Final report · May 21, 1989 · N7557M · Substantial damage > Binding (stuck) #4 exhaust valve. High vegetation (hay) and a hidden obstruction (ditch) were contributing factors. - [NTSB DEN89LA100](https://openairdocs.org/ntsb/DEN89LA100.md): Piper PA-34-220T · Cheyenne, WY · Accident · No injuries · Limited investigation · Final report · Apr 5, 1989 · N83864 · Substantial damage > Failure of the pilot-in-command to properly recover from a bounced landing. - [NTSB DEN89LA081](https://openairdocs.org/ntsb/DEN89LA081.md): Cessna 150 · Evanston, WY · Accident · No injuries · Limited investigation · Final report · Mar 1, 1989 · N11009 · Substantial damage > The failure of the pilot to maintain the proper descent rate on final approach which resulted in a landing short of the runway. - [NTSB DEN89IA071](https://openairdocs.org/ntsb/DEN89IA071.md): Beech E90 · Lander, WY · Incident · No injuries · Incident investigation · Final report · Jan 31, 1989 · N87CH · Minor damage > Deer on the runway. - [NTSB DEN89LA053](https://openairdocs.org/ntsb/DEN89LA053.md): Cessna 172 · Cheyenne, WY · Accident · No injuries · Limited investigation · Final report · Jan 2, 1989 · N4440L · Substantial damage > Improper planning/decision by the pilot. Factors related to the accident were the high wind and gusts, which he was unable to compensate for. - [NTSB DEN89LA044](https://openairdocs.org/ntsb/DEN89LA044.md): Cessna 150E · Basin, WY · Accident · No injuries · Limited investigation · Final report · Dec 17, 1988 · N6122T · Substantial damage > The private plt attempted a takeoff from his short farm field strip. During the takeoff ground run, the plt realized the acft would not have flying speed and clear the fence at the end of the field. He elected to try to jump the acft over the fence and land… - [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 DEN89LA037](https://openairdocs.org/ntsb/DEN89LA037.md): Piper PA-18-150 · Casper, WY · Accident · No injuries · Limited investigation · Final report · Nov 27, 1988 · N743L · Substantial damage > The plt attempted a takeoff to the west on a county gravel road. The pilot said he had routinely used the gravel road for about 10 years because of its convenience to his hangar/tool shed. He reported the winds were from 210 deg at 15 KTS. During the ground… - [NTSB DEN89LA030](https://openairdocs.org/ntsb/DEN89LA030.md): Cessna 172 · Riverton, WY · Accident · No injuries · Limited investigation · Final report · Nov 13, 1988 · N8045B · Substantial damage > The instructor reported closing the throttle to simulate an engine failure, during a training flight. The student added carburetor heat first, instead of establishing a proper glide. The instructor removed carburetor heat and advised the student of the… - [NTSB DEN89LA006](https://openairdocs.org/ntsb/DEN89LA006.md): Pilgrim Steen Skybolt · Rawlins, WY · Accident · No injuries · Limited investigation · Final report · Oct 4, 1988 · N21SP · Substantial damage > The pvt plt in command and his atp-rated pax were ferrying the newly-purchased acft from FL to WA. They departed scottsbluff, NE, and were enroute to rock springs, WY, when the pax advised the plt insufficient VFR fuel reserves precluded continuing to rks.… - [NTSB DEN88FA202](https://openairdocs.org/ntsb/DEN88FA202.md): Beech 200 · Jackson, WY · Accident · 1 fatal · Field investigation · Final report · Sep 12, 1988 · N1283 · Destroyed > The plt and his two pax had just arrived at the Jackson hole airport (jax) approximately 30 minutes prior to the accident. The plt dropped off his pax and stepped into operations for a short break. He then returned to the acft by himself for a return flt to… - [NTSB DEN88LA195](https://openairdocs.org/ntsb/DEN88LA195.md): Piper PA-28-140 · Rawlins, WY · Accident · Serious injuries · Limited investigation · Final report · Aug 29, 1988 · N5873U · Substantial damage > Plt and pax were on a flight from milwaukee, WI, to las vegas, NV. The plt made an unscheduled stop at Rawlins due to poor vis and low fuel. The airplane was loaded with suit cases, camping gear, coolers and full fuel. The pilot and pax combined weight was… - [NTSB DEN88FA193](https://openairdocs.org/ntsb/DEN88FA193.md): Mooney M20F · Jackson Hole, WY · Accident · 2 fatal · Field investigation · Final report · Aug 27, 1988 · N9528M · Destroyed > The pvt plt obtained his instrument rating 14 days prior to the accident. 12 hrs of actual instrument flt time was logged in March of 1987. The remaining instrument flt time was simulated. Visibility in the Jackson Hole area was reduced by smoke. The plt… - [NTSB DEN88LA189](https://openairdocs.org/ntsb/DEN88LA189.md): Cessna 195 · Rawlins, WY · Accident · Minor injuries · Limited investigation · Final report · Aug 25, 1988 · N3455V · Substantial damage - [NTSB DEN88LA184](https://openairdocs.org/ntsb/DEN88LA184.md): Cessna A185F · Medicine Bow, WY · Accident · No injuries · Limited investigation · Final report · Aug 17, 1988 · N2450J · Substantial damage > The pvt plt returned to his ranch strip & landed to the ene with a x-wind from the right. Drg the lndg roll, the acft began to go to the right. The plt corrected with left pedal, but subsequently, the acft ground looped to the left & nosed over. An exam of… - [NTSB DEN88LA179](https://openairdocs.org/ntsb/DEN88LA179.md): Cessna 182P · Casper, WY · Accident · No injuries · Limited investigation · Final report · Aug 8, 1988 · N182AD · Substantial damage > Drg flt after an annual inspn, the eng lost power as the acft was climbing to cruise. Attempts to restart the eng were unsuccessful. Subsequently, the acft was landed on rough/rocky terrain where it nosed over. When the eng was being checked after the acdnt,… - [NTSB DEN88LA174](https://openairdocs.org/ntsb/DEN88LA174.md): Cessna 172M · Gillette, WY · Accident · No injuries · Limited investigation · Final report · Jul 25, 1988 · N5266J · Substantial damage > The student plt was completing his first solo x-country flt. During touchdown, the airplane bounced and began to porpoise. On the third bounce, the nose wheel fork failed. Subsequently, the acft turned 180 deg to the left & came to rest on the left side of… - [NTSB DEN88LA157](https://openairdocs.org/ntsb/DEN88LA157.md): Cessna 182A · Gillette, WY · Accident · Minor injuries · Limited investigation · Final report · Jul 15, 1988 · N5903B · Substantial damage - [NTSB DEN88LA154](https://openairdocs.org/ntsb/DEN88LA154.md): Piper PA-18 · Cody, WY · Accident · No injuries · Limited investigation · Final report · Jul 12, 1988 · N6083A · Substantial damage > During landing on a ranch road while on a business flight the plt struck a pile of gravel placed on the road to facilitate road repairs. The aircraft flipped over and caused substantial damage to the vertical stabilizer, horizontal stabilizer, propeller and… - [NTSB DEN88FA151](https://openairdocs.org/ntsb/DEN88FA151.md): Aerospatiale SA-315B · Dubois, WY · Accident · Serious injuries · Field investigation · Final report · Jul 10, 1988 · N47274 · Substantial damage - [NTSB DEN88LA149](https://openairdocs.org/ntsb/DEN88LA149.md): Piper PA-28R-200 · Cheyenne, WY · Accident · Serious injuries · Limited investigation · Final report · Jul 8, 1988 · N4329F · Substantial damage > The flight originated in omaha, NE. Three passengers and the commercial plt embarked on a fishing trip into Wyoming. The pilot departed Cheyenne after having several problems with the engine and correcting the problem by proper leaning. He said he took off… - [NTSB DEN88LA123](https://openairdocs.org/ntsb/DEN88LA123.md): Helio H-295 · Encampment, WY · Accident · Serious injuries · Limited investigation · Final report · Jun 5, 1988 · N6454V · Destroyed > The plt stated he calculated the density altitude to have been 11,300 ft at takeoff. He said the acft was near max gross wt and that the grass strip he departed from was approx 1,500 ft long. The plt stated 'I was on the on the back side of the pwr curve as… - [NTSB DEN88FA121](https://openairdocs.org/ntsb/DEN88FA121.md): Piper PA-28-180 · Rock Springs, WY · Accident · 2 fatal · Field investigation · Final report · Jun 4, 1988 · N9728J · Destroyed > Shortly after departure on the second leg of a cross country flt the plt informed the fss located on the arpt that he was returning. The fss technician on duty observed the acft turn final at an abnormally low altitude. The acft disappeared from view. The… - [NTSB DEN88FA114](https://openairdocs.org/ntsb/DEN88FA114.md): Beech D-17S · Wheatland, WY · Accident · 2 fatal · Field investigation · Final report · May 28, 1988 · N1038M · Destroyed > The witnesses said they saw the acft fly a pattern indicative of a base to final approach to rwy 35. The airstrip has a second runway oriented east and west. The wind was blowing from the east at 20 knots. The acft wreckage was found approximately 3/4 miles… - [NTSB DEN88LA092](https://openairdocs.org/ntsb/DEN88LA092.md): Cessna 210L · Cheyenne, WY · Accident · No injuries · Limited investigation · Final report · Apr 5, 1988 · N910DS · Substantial damage > The CFI was giving a checkout to the private pilot doctor. The CFI flight records showed only one hour in this make/model. The fuel selector was in the right tank position throughout the flight. The pilot reported that the engine quit on one mile short final… - [NTSB DEN88LA066](https://openairdocs.org/ntsb/DEN88LA066.md): Piper J3C · Cody, WY · Accident · No injuries · Limited investigation · Final report · Feb 10, 1988 · N7468 · Substantial damage > During an attempted landing at a private airstrip which was covered by 5-6 inches of dry powdered snow, the acft touched down. It pitched forward and nosed over. After the acft came to rest, the pilot got out of the acft, examined the landing gear, and… - [NTSB DEN88LA053](https://openairdocs.org/ntsb/DEN88LA053.md): Piper PA-18-150 · Casper, WY · Accident · No injuries · Limited investigation · Final report · Jan 14, 1988 · N1879P · Substantial damage > The commercial plt was taxiing after landing during a fuel stop while on a long cross country flight. The plt landed on runway 21, a hard surface runway, 10,600 feet long by 150 feet wide. The winds were reported from 230 degrees at 22 knots, with gusts to 31… - [NTSB DEN88LA041](https://openairdocs.org/ntsb/DEN88LA041.md): Piper PA-18-125 · Riverton, WY · Accident · Serious injuries · Limited investigation · Final report · Dec 26, 1987 · N211T · Substantial damage > The instructor plt and student were practicing forced landings to an open field. The instructor stated that he descended to approx 50 to 75 ft AGL over the intended landing area. He initiated a go around, pulled up and banked left to go over powerlines. At an… - [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 DEN87DTI02](https://openairdocs.org/ntsb/DEN87DTI02.md): Bakeng Deuce · Gillette, WY · Accident · No injuries · Final report · Sep 21, 1987 · N9659A · Substantial damage > The plt rprtd that on each of his 1st 3 attempts to land, he began losing directional control during roll-out & went around. On the 4th attempt, he again tried to go around, but the acft swerved off the rwy & ground looped, collapsing the left main gear &… - [NTSB DEN87FA237](https://openairdocs.org/ntsb/DEN87FA237.md): Fairchild Hiller FH-1100 · Pinedale, WY · Accident · Serious injuries · Field investigation · Final report · Sep 13, 1987 · N5059F · Destroyed > The plt and two passengers had flown to Pinedale to fish. The plt stated that he was cruising at an alt of 400 ft AGL and was executing a rt turn at the request of a pax. He stated that he slowed the acft, decreased the collective, and added rt pedal as he… - [NTSB DEN87DTI01](https://openairdocs.org/ntsb/DEN87DTI01.md): Cessna A188B · Basin, WY · Accident · No injuries · Final report · Aug 22, 1987 · N72414 · Substantial damage > The plt was taking off on a private, 2300 ft, dirt, ag strip with a load of chemicals. The arpt elev was 4185 ft & the rprtd temp was 74 deg. The plt said the wind was calm when he began his takeoff roll, but about 3/4 of the way down the rwy, the acft… - [NTSB DEN87LA199](https://openairdocs.org/ntsb/DEN87LA199.md): Bell 204B · Dubois, WY · Accident · Serious injuries · Limited investigation · Final report · Jul 29, 1987 · N4580Y · Substantial damage > The commercial plt was performing external sling loads in support of seismic operations. The plt reported that the engine failed during a load release and the plt executed an autorotation. This resulted in a hard landing in heavy timber on sloping terrain.… - [NTSB DEN87LA181](https://openairdocs.org/ntsb/DEN87LA181.md): Piper PA-18-150 · Worland, WY · Accident · No injuries · Limited investigation · Final report · Jul 14, 1987 · N4237Z · Substantial damage > The plt said the acft bounced during landing and he lost control. The acft ran off the rwy and when the plt applied the brakes too hard, the acft nosed over. - [NTSB DEN87FA162](https://openairdocs.org/ntsb/DEN87FA162.md): Cessna 421C · Cody, WY · Accident · 4 fatal · Field investigation · Final report · Jun 28, 1987 · N26553 · Destroyed > The plt & 3 paxs were returning to dallas, TX from a retreat in Montana. The plt filed an IFR flt plan from white sulphur springs, MT, to casper, WY, but did not activate it after departure. The acft was rprtd overdue by family & a search was initiated. The… - [NTSB DEN87IA145](https://openairdocs.org/ntsb/DEN87IA145.md): Boeing 727-251 · Casper, WY · Incident · No injuries · Incident investigation · Final report · Jun 2, 1987 · N297US · 2 aircraft · No damage > Boeing 727 (northwest flt 354) & USAF EC-135 (slum 51) were involved in a nr collision at FL 330. The mishap occurred asflt 354 was ene bnd on J-158 & slum 51 was flying on a radial-distance (r/d) flt pln, flying btn r/d pts south of J-158.as slum 51 apchd… - [NTSB DEN87LA136](https://openairdocs.org/ntsb/DEN87LA136.md): Cessna 180 · Upton, WY · Accident · No injuries · Limited investigation · Final report · May 27, 1987 · N2933C · Substantial damage > The plt reported completing a cross wind landing with strong gusts. While taxiing from landing, the wind lifted the acft from the right and it nosed over. The rwy used was 13, and the FBO reported winds as 210 degrees at 20 knots, gusting to 40 knots. - [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 DEN87LA113](https://openairdocs.org/ntsb/DEN87LA113.md): Beech A24R · Beulah, WY · Accident · No injuries · Limited investigation · Final report · Apr 28, 1987 · N9784L · Substantial damage > The acft lost power during a normal climb on a personal trip. The private plt noticed a drop in fuel flow pressure and smelled fuel. The plt then selected boost pump on but the pressure stayed low. The plt elected to make a forced landing and selected a… Next page: https://openairdocs.org/ntsb.md?state=WY&page=13 ## 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' ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?page=12&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.