# NTSB investigations, WY: Loss of engine power(total) - mech failure/malf 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. ## Latest cases - [NTSB DEN05LA143](https://openairdocs.org/ntsb/DEN05LA143.md): North American SNJ-5 · Torrington, WY · Accident · No injuries · Limited investigation · Final report · Sep 19, 2005 · N212TC · Substantial damage > failure of the #7 connecting rod, causing engine seizure. A contributing factor was the berm. - [NTSB DEN04LA107](https://openairdocs.org/ntsb/DEN04LA107.md): Cessna P210N · Douglas, WY · Accident · No injuries · Limited investigation · Final report · Jul 20, 2004 · N7736K · Substantial damage > the failure of the engine's crankshaft due to the rotation of the engine's number two bearing, which resulted in the oil starvation of the crankshaft's number 2 main journal. Contributing factors include the engine's improper maintenance, and the in-flight… - [NTSB DEN01LA149](https://openairdocs.org/ntsb/DEN01LA149.md): Piper PA-32RT-300 · Rock Springs, WY · Accident · No injuries · Limited investigation · Final report · Aug 18, 2001 · N3015L · Substantial damage > the mechanic's failure to perform an airworthiness directive, which resulted in the loss of engine oil through a partially failed oil filter converter plate gasket, and subsequent failure of a connecting rod during cruise flight. A contributing factor was the… - [NTSB DEN01LA002](https://openairdocs.org/ntsb/DEN01LA002.md): Hughes 369FF · Baggs, WY · Accident · Serious injuries · Limited investigation · Final report · Oct 10, 2000 · N82638 · Substantial damage > impact with terrain following a total loss of engine power due to fatigue failure of the turbine-to-compressor coupling. A contributing factor was the unsuitable terrain for a forced landing. - [NTSB DEN00LA157](https://openairdocs.org/ntsb/DEN00LA157.md): Phelps Rans S-12 Airaile · Buffalo, WY · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 2000 · N586WP · Destroyed > the lack of suitable terrain for the forced landing. Contributing factors were the power failure due to a failed rod bearing, and down draft weather condition. - [NTSB DEN99LA056](https://openairdocs.org/ntsb/DEN99LA056.md): Aero Commander 200D · Evanston, WY · Accident · No injuries · Limited investigation · Final report · Mar 13, 1999 · N49J · Substantial damage > A total loss of engine power for undetermined reasons. - [NTSB DEN99LA040](https://openairdocs.org/ntsb/DEN99LA040.md): Hughes 369D · Baggs, WY · Accident · Serious injuries · Limited investigation · Final report · Feb 16, 1999 · CGDCM · Substantial damage > A hard landing resulting from rotor rpm decay. Factors were the improper replacement of the turbine by company maintenance personnel resulting in the PC line nut becoming loose, and the pilot operating outside the normal height/velocity curve. - [NTSB SEA95LA028](https://openairdocs.org/ntsb/SEA95LA028.md): Piper PA-28-236 · Medicine Bow, WY · Accident · No injuries · Limited investigation · Final report · Dec 10, 1994 · N4300V · Substantial damage > The failure of the magneto system due to shorting of both magneto coils to the magneto housing and the lack of suitable terrain to make a forced landing. - [NTSB SEA95LA027](https://openairdocs.org/ntsb/SEA95LA027.md): Cessna 180 · Lonetree, WY · Accident · No injuries · Limited investigation · Final report · Dec 8, 1994 · N1594C · Substantial damage > The restricted movement of the carburebor float. - [NTSB SEA93LA089](https://openairdocs.org/ntsb/SEA93LA089.md): Piper PA-24 · Casper, WY · Accident · No injuries · Limited investigation · Final report · Apr 6, 1993 · N5541P · Substantial damage > Fuel exhaustion, and the pilot in command's poor inflight decision. Factors include an inadequate preflight by the pilot in command. - [NTSB SEA93LA055](https://openairdocs.org/ntsb/SEA93LA055.md): Boeing A75N1 · Medicine Bow, WY · Accident · Minor injuries · Limited investigation · Final report · Jan 20, 1993 · N56924 · Substantial damage > Failure of the #7 cylinder rocker arm. Factors contributing to the accident were unsuitable terrain and dark night conditions. - [NTSB SEA92LA196](https://openairdocs.org/ntsb/SEA92LA196.md): Piper PA-12 · Cokeville, WY · Accident · No injuries · Limited investigation · Final report · Sep 6, 1992 · N78599 · Substantial damage > Fatigue failure of the crankshaft. Factors include non suitable terrain for a forced landing and an improper propeller. - [NTSB SEA92IA150](https://openairdocs.org/ntsb/SEA92IA150.md): Beech 1900C · Cheyenne, WY · Incident · No injuries · Incident investigation · Final report · Jul 11, 1992 · N109YV · No damage > Failure of the fuel control unit on the left engine. - [NTSB SEA92LA138](https://openairdocs.org/ntsb/SEA92LA138.md): Navion H · Gillette, WY · Accident · Minor injuries · Limited investigation · Final report · Jun 27, 1992 · N2550T · Substantial damage > An engine power loss due to the collapse of the induction air ducting, inadequate maintenance, and improper approval of the modification. - [NTSB SEA91LA221](https://openairdocs.org/ntsb/SEA91LA221.md): Cessna C-210L · Cheyenne, WY · Accident · Minor injuries · Limited investigation · Final report · Aug 24, 1991 · N2190S · Substantial damage > Maintenance personnel did not perform a proper top overhaul. This resulted in engine failure due to the failure of a connecting rod bearing. Factors include the hard landing resulting from the premature landing flare by the pilot. - [NTSB SEA91LA006](https://openairdocs.org/ntsb/SEA91LA006.md): Mooney M20F · Casper, WY · Accident · No injuries · Limited investigation · Final report · Oct 13, 1990 · N9732M · Substantial damage > The loss of engine power due to fatigue fracture of the number 2 cylinder connecting rod. Factors related to the accident were: rough and uneven terrain at the accident site and the lack of suitable terrain for forced landing. - [NTSB SEA90LA152](https://openairdocs.org/ntsb/SEA90LA152.md): Boson Starduster TOO · Pinedale, WY · Accident · No injuries · Limited investigation · Final report · Aug 1, 1990 · N18YB · Substantial damage > The loss of engine power due to failure of the ignition coil, and the lack of suitable terrain for a forced landing. Failure of the ignition coil resulting in a total loss of engine power. The lack of suitable terrain was a factor related to the accident. - [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 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 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 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 DEN85LA059](https://openairdocs.org/ntsb/DEN85LA059.md): Piper PA-18-150 · Rawlins, WY · Accident · Minor injuries · Limited investigation · Final report · Jan 4, 1985 · N3575Z · Substantial damage > The acft lost eng pwr and was substantially damaged during an off arpt energency landing. The purpose of the flt was to look for coyotes. The post accident eng exam revealed that 9 consecutive teeth on the left magneto drive gear were ground off. This allowed… - [NTSB DEN84LA292](https://openairdocs.org/ntsb/DEN84LA292.md): Aerospatiale SA315B Lama · Mountain View, WY · Accident · No injuries · Limited investigation · Final report · Sep 17, 1984 · N49532 · Substantial damage > The helicopter experienced a loss of power during an external load operation. The plt released the load and performed an autorotation. A hard landing resulted during which the tail boom was severed by the main rotor blades. Metallurgical examination of the… - [NTSB DEN84IA281](https://openairdocs.org/ntsb/DEN84IA281.md): Mooney M20F · Saratoga, WY · Incident · No injuries · Incident investigation · Final report · Sep 5, 1984 · N9121V · Minor damage > While in level cruise flt at 10500 ft, the plt heard a high-pitched whine that lasted for about 5 seconds. The engine then seized and the plt made a forced landing in mountainous foothills. During the landing roll, the landing gearcollapsed. Examination of… - [NTSB DEN84LA221](https://openairdocs.org/ntsb/DEN84LA221.md): Piper 28RT-201T · Glendo, WY · Accident · Minor injuries · Limited investigation · Final report · Jul 20, 1984 · N8168Q · Substantial damage > The acft was damaged in a forced landing in a wooded area after the engine failed. The plt said that he was cruising at 7500 ft MSL when without warning the engine began making noises and then lost oil pressure. After the landing the enginewas examined at the… - [NTSB DEN84LA005](https://openairdocs.org/ntsb/DEN84LA005.md): Cessna R182 · Grovont, WY · Accident · Minor injuries · Limited investigation · Final report · Oct 7, 1983 · N7039W · Substantial damage > The plt reported that after taking off, the gear warning horn sounded when he retracted the gear. He continued en route while trying to get a safe indication. Subsequently, aprx 20 mi east of the departure point, he elected to entend the gear & return to the… - [NTSB DEN83LA060](https://openairdocs.org/ntsb/DEN83LA060.md): Cessna T210N · Riverton, WY · Accident · No injuries · Limited investigation · Final report · Feb 15, 1983 · N5393A · Substantial damage > The acft slid across a road and slid parallel to a fence until the acft hit a fence post during a forced landing. The acft was on a test flt after maintenance which included adjustment of the absolute controller. The before takeoff checkswere made and… - [NTSB DEN82DA196](https://openairdocs.org/ntsb/DEN82DA196.md): Cessna U206F · Kemmerer, WY · Accident · No injuries · Final report · Sep 15, 1982 · N8317Q · Substantial damage > The aircraft lost power after takeoff in a large field. During the landing roll, the aircraft crossed a dirt road that crossed the field, the nose gear failed and the aircraft nosed over. A section of aluminum from the air induction box was missing. Aluminum… - [NTSB DEN82DA199](https://openairdocs.org/ntsb/DEN82DA199.md): Cessna 175 · Hulett, WY · Accident · No injuries · Final report · Sep 9, 1982 · N9410B · Substantial damage > The pilot reported that during flight the engine began to run rough. He diverted toward a nearby airstrip, but while en route, there was a "bang" and smoke began entering the cabin. At that point, he shut off the fuel, magnetos and master switch, then lost… - [NTSB DEN82DA159](https://openairdocs.org/ntsb/DEN82DA159.md): Aerospatiale SA-315B · Afton, WY · Accident · No injuries · Final report · Aug 9, 1982 · N10067 · Destroyed > En route during a seismic operation a loud screeching, grinding sound was heard. The pilot reported the aircraft seemed to buck. A long flame emitting from the aft end of the aircraft was observed by witnesses. The engine ceased and the aircraft crashed into… - [NTSB DEN82FTC09](https://openairdocs.org/ntsb/DEN82FTC09.md): Bell 47G-3B-L · Kaycee, WY · Accident · 1 fatal · Final report · Aug 8, 1982 · N8529F · Destroyed > The pilot was having cooling fan problems, some blades had broken. He landed in a canyon stayed overnight to cool engine and planned to fly to top of the canyon to get repairs. After takeoff, the helicopter had climbed almost level with the top of the canyon… - [NTSB DEN82FTC03](https://openairdocs.org/ntsb/DEN82FTC03.md): Aerospatiale SA315B · Big Piney, WY · Accident · Serious injuries · Final report · Apr 20, 1982 · N9007N · Destroyed > The acft was engaged in seismic activity supplying explosives by long line. The eng failed at about 400-500 ft AGL. The load was released & an open field was selected. At about 150 ft AGL the plt was unable to maintain rotor RPM & the acft impacted the ground… - [NTSB DEN82DA015](https://openairdocs.org/ntsb/DEN82DA015.md): Beech 35 · Jackson, WY · Accident · No injuries · Final report · Jan 6, 1982 · N8070Q · Substantial damage > The temperature was approximately a minus 15 degrees fahrenheit. The pilot reported the engine was preheated for 30 minutes and that everything was in the green before takeoff. Shortly after takeoff, the engine began to overspeed. The pilot throttled back and… ## 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" = 351) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=351&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.