# NTSB investigations: Pratt & Whitney R-985 series: Loss of engine power (total) 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 ERA26LA224](https://openairdocs.org/ntsb/ERA26LA224.md): Boeing E75 · Dresden, OH · Accident · Serious injuries · Class 3 · Limited · Preliminary report · May 29, 2026 · N181RF · Substantial damage > On May 29, 2026, about 1153 eastern daylight time, a Boeing E75, N181RF, was substantially damaged when it was involved in an accident near Dresden, Ohio. The pilot and passenger were seriously injured. The airplane was operated as a Title 14 Code of Federal… - [NTSB ERA25LA004](https://openairdocs.org/ntsb/ERA25LA004.md): Grumman Acft ENG Cor-Schweizer G-164A · Parsonsburg, MD · Accident · Serious injuries · Class 4 · Limited · Final report · Oct 7, 2024 · N8957H · Substantial damage > A total loss of engine power for reasons that were not determined. - [NTSB CEN21LA329](https://openairdocs.org/ntsb/CEN21LA329.md): Grumman Acft ENG Cor-Schweizer G-164B · Amana, IA · Accident · No injuries · Class 3 · Limited · Final report · Jul 19, 2021 · N8422K · Substantial damage > The loss of engine power for reasons that could not be determined. - [NTSB CEN18LA357](https://openairdocs.org/ntsb/CEN18LA357.md): Grumman G164 · Opelousas, LA · Accident · No injuries · Limited investigation · Final report · Aug 29, 2018 · N956X · Substantial damage > The loss of two securing bolts that allowed the left magneto to move around, which disrupted the spark timing and resulted in the engine losing total power. - [NTSB CEN17LA038](https://openairdocs.org/ntsb/CEN17LA038.md): Weatherly 620B · Coleman, TX · Accident · No injuries · Limited investigation · Final report · Nov 12, 2016 · N2035J · Substantial damage > The pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation. - [NTSB CEN15LA272](https://openairdocs.org/ntsb/CEN15LA272.md): Weatherly 620A · Van Horn, TX · Accident · Serious injuries · Limited investigation · Final report · Jun 14, 2015 · N4659N · Substantial damage > The loss of engine power for reasons that could not be determined based on the available information. - [NTSB CEN15LA271](https://openairdocs.org/ntsb/CEN15LA271.md): Grumman Acft ENG Cor-Schweizer G 164B · Foster, NE · Accident · Minor injuries · Limited investigation · Final report · Jun 12, 2015 · N48687 · Substantial damage > The total loss of engine power during a low-level aerial application flight due to fuel exhaustion following the pilot’s inadequate preflight inspection that led to his assumption that sufficient fuel was on board for the flight based on his reliance on a… - [NTSB CEN14LA319](https://openairdocs.org/ntsb/CEN14LA319.md): Grumman G 164 · Anadarko, OK · Accident · Minor injuries · Limited investigation · Final report · Jun 20, 2014 · N455Y · Substantial damage > The total loss of engine power while climbing after takeoff for reasons that could not be determined based on the available information. - [NTSB ERA11LA290](https://openairdocs.org/ntsb/ERA11LA290.md): Grumman G-164A · Albion, NY · Accident · No injuries · Limited investigation · Final report · Apr 29, 2011 · N896X · Substantial damage > A bearing failure in the engine’s supercharger section, which resulted in a total loss of engine power during flight. Contributing to the accident was the soft soil of the forced landing site. - [NTSB CEN11FA228](https://openairdocs.org/ntsb/CEN11FA228.md): Waco UPF-7 · Brownsville, TX · Accident · Serious injuries · Field investigation · Final report · Mar 12, 2011 · N30136 · Substantial damage > The loss of engine power for undetermined reasons. - [NTSB CEN11CA071](https://openairdocs.org/ntsb/CEN11CA071.md): Grumman G-164 · Michigan, ND · Accident · No injuries · Data collection · Final report · Oct 11, 2010 · N554Y · Substantial damage > The pilot's failure to abort the takeoff roll following a noticeable loss of engine power due to low engine compression and a magneto failure. - [NTSB CEN09LA444](https://openairdocs.org/ntsb/CEN09LA444.md): Beech TC-45J · Verdel, NE · Accident · 1 fatal · Limited investigation · Final report · Jul 19, 2009 · N6688 · Destroyed > The pilot's improper decision to fly an airplane that was not airworthy and for which he was not properly rated to operate, and his failure to maintain control of the airplane during a forced landing to a field following an engine failure. Contributing to the… - [NTSB WPR09LA227](https://openairdocs.org/ntsb/WPR09LA227.md): Grumman G-164B · Colfax, WA · Accident · No injuries · Limited investigation · Final report · May 4, 2009 · N6628Q · Substantial damage > A total loss of engine power due to excessive wear in several carburetor components that led to a malfunction of the carburetor. - [NTSB LAX08LA177](https://openairdocs.org/ntsb/LAX08LA177.md): Grumman-Schweizer G-164B · Wilder, ID · Accident · Minor injuries · Limited investigation · Final report · Jun 13, 2008 · N48571 · Substantial damage > The loss of engine power as a result of failure of the supercharger. Contributing to the accident was the lack of suitable terrain for the forced landing. ## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52008') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '341')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-events/341/cases?engine=52008 --- 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.