# NTSB investigations, SD: 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 CHI04CA162](https://openairdocs.org/ntsb/CHI04CA162.md): Air Tractor AT-401 · Britton, SD · Accident · No injuries · Data collection · Final report · Jun 23, 2004 · N1013N · Substantial damage > The loss of engine power due to a stuck exhaust valve and the unsuitable terrain encountered during the forced landing. A factor to the accident was the soft terrain condition. - [NTSB CHI97LA004](https://openairdocs.org/ntsb/CHI97LA004.md): Bell 47G-5 · Nunda, SD · Accident · No injuries · Limited investigation · Final report · Oct 6, 1996 · N7925J · Substantial damage > failure of maintenance personnel to properly torque the six accessory drive bolts, which resulted in fatigue failure of the undertorqued bolts. - [NTSB CHI96LA229](https://openairdocs.org/ntsb/CHI96LA229.md): Hewitt Cassutt 3M · Vermillion, SD · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1996 · N290E · Substantial damage > the failure of the unapproved fuel pump. - [NTSB CHI94DTK02](https://openairdocs.org/ntsb/CHI94DTK02.md): Ayres S2R · Letcher, SD · Accident · No injuries · Final report · Jun 22, 1994 · N3102E · Destroyed > the loss of engine power due to the failure of the engine driven fuel pump and shaft. - [NTSB DEN90FA055](https://openairdocs.org/ntsb/DEN90FA055.md): Mitsubishi MU-2B-60 · Rapid City, SD · Accident · 1 fatal · Field investigation · Final report · Feb 9, 1990 · N64MD · Substantial damage > Failure of the pilot to maintain adequate airspeed (VMC), which resulted in a loss of aircraft control. A factor related to the accident was: fatigue failure of a coupling shaft in the #1 engine, which resulted in loss of power in that engine. - [NTSB DEN89LA082](https://openairdocs.org/ntsb/DEN89LA082.md): Stinson 108-2 · Custer, SD · Accident · Serious injuries · Limited investigation · Final report · Mar 7, 1989 · N150C · Substantial damage > The improper maintenance by the pilot in command/owner in that the magneto drive gear retaining nuts were not safetied which resulted in them backing off, disconnecting the magnetoes and one of the gears falling into the engine. - [NTSB DEN88LA180](https://openairdocs.org/ntsb/DEN88LA180.md): Bell 206B · Sturgis, SD · Accident · No injuries · Limited investigation · Final report · Aug 11, 1988 · N49727 · Substantial damage > The plt was on a flt with 2 pax to take pictures. He stated that 'while in level flight at 120 mph and 300 feet above the ground, a pitch over was initiated for picture taking. At that moment, it appeared that the fuel flow cavitated. The forward fuel pump… - [NTSB DEN88LA145](https://openairdocs.org/ntsb/DEN88LA145.md): Sikorsky S-58J · Sioux Falls, SD · Accident · Minor injuries · Limited investigation · Final report · Jul 5, 1988 · N62243 · Substantial damage > N62243 was being used to lift air conditioning units to the top of a shopping mall. The plt stated that he was on the 16th lift of the day and had just taken off when he heard two loud pops and the engine lost power. After jettisoning the load he executed an… - [NTSB DEN86FTK03](https://openairdocs.org/ntsb/DEN86FTK03.md): Piper PA-25 · Badger, SD · Accident · 1 fatal · Final report · Jun 17, 1986 · N6120Z · Substantial damage > The acft nosed over during a forced landing after takeoff. The acft was landed straight ahead and rolled out into a standing pool of water 8-10 inches deep where it flipped over crushing the canopy and trapping the plts body. During post acc invest sediment… - [NTSB DEN84LA235](https://openairdocs.org/ntsb/DEN84LA235.md): Grumman G-164A · Chamerlain, SD · Accident · No injuries · Limited investigation · Final report · Jul 25, 1984 · N4593 · Substantial damage > The pilot experienced an engine failure and executed an emergency landing on a narrow road which resulted in one of the landing gear touching down on the soft shoulder. The landing gear failed and substantial damage resulted. Examination of the engine… - [NTSB DEN84LA192](https://openairdocs.org/ntsb/DEN84LA192.md): Grumman G-164A · Murdo, SD · Accident · No injuries · Limited investigation · Final report · Jun 23, 1984 · N8974H · Substantial damage > The pilot reported the engine failed while he was in a procedure turn. The pilot made a forced landing in an open field and the acft nosed over. Examination of the engine after the accident revealed the engine 'swallowed an exhaust valve' that caused the… - [NTSB DEN84FU006](https://openairdocs.org/ntsb/DEN84FU006.md): Weedhopper B · Beresford, SD · Accident · 1 fatal · Final report · May 29, 1984 · UNREG · Destroyed > The ultralight was observed flying when it suddenly nosed down and crashed. One witness said he thought he heard the engine quit running before the nose down. The acft impacted in a vertical nose down attitude. Investigation showed that the pistons were… - [NTSB DEN83LA165](https://openairdocs.org/ntsb/DEN83LA165.md): Bell 47J-2A · Interior, SD · Accident · No injuries · Limited investigation · Final report · Jul 14, 1983 · N8545F · Substantial damage > While on a sight-seeing flt over a park, the plt heard a loud noise & the helicopter shuddered & lost power. At that time, the acft was over a canyon, so the plt looked for the flatest area to land & began an autorotation. During the landing, the helicopter… - [NTSB DEN82FTK04](https://openairdocs.org/ntsb/DEN82FTK04.md): Callair A-9B · Sioux Falls, SD · Accident · No injuries · Final report · May 27, 1982 · N7769V · Substantial damage > The eng quit & the plt landed in an adjacent field after first hitting a wooded fence. An inspectin of the bendix fuel servo unit, model PSA-10ED-1, revealed that the fuel diaphragm stem, pn 2539806, had failed. ## 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" = 'SD' 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=SD --- 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.