# NTSB investigations: Engine (turbine/turboprop) 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 5 · 224 cases ## Latest cases - [NTSB ENG25WA049](https://openairdocs.org/ntsb/ENG25WA049.md): Embraer EMB145 · Sokoto, Nigeria · Incident · Class 3 · Foreign · Jun 29, 2025 · 5N-BZY · No damage - [NTSB DCA25LA185](https://openairdocs.org/ntsb/DCA25LA185.md): Boeing 737 · Houston, TX · Accident · Serious injuries · Class 4 · Limited · Final report · Apr 17, 2025 · N7724A · No damage > Serious Injury to a flight attendant sustained during an evacuation. - [NTSB ENG25WA034](https://openairdocs.org/ntsb/ENG25WA034.md): Airbus A321 · Ciudad de México, Mexico · Occurrence · Class 5 · Foreign · Mar 13, 2025 · XA-VXP · No damage - [NTSB DCA25LA114](https://openairdocs.org/ntsb/DCA25LA114.md): Airbus Industrie A319 · Houston, TX · Occurrence · No injuries · Class 3 · Limited · Final report · Feb 2, 2025 · N837UA · No damage > The failure of the cabin crew to activate the evacuation alarm and to maintain coordinated communication with the flight crew following the cabin crew’s decision to command an evacuation, which resulted in an engine running during the initial evacuation.… - [NTSB ENG25WA015](https://openairdocs.org/ntsb/ENG25WA015.md): Bombardier BD100 1A10 · Nassau, Bahamas · Incident · Class 5 · Foreign · Jan 20, 2025 · CS-CHJ · No damage - [NTSB CEN25FA006](https://openairdocs.org/ntsb/CEN25FA006.md): Beech C99 · Norfolk, NE · Accident · 1 fatal · Class 3 · Field · Final report · Oct 8, 2024 · N130GP · Destroyed > The pilot’s failure to maintain adequate airspeed following a partial loss of engine power during takeoff, which resulted in a loss of airplane control. Contributing to the accident was the fatigue failure of the compressor turbine fan disk blade. - [NTSB ENG24LA028](https://openairdocs.org/ntsb/ENG24LA028.md): Bell 407 · Oktaha, OK · Incident · No injuries · Class 3 · Limited · Final report · Jul 26, 2024 · N793SF · Minor damage > The loss of engine power due to high cycle fatigue failure of a power turbine stage 3 turbine wheel blade. The resulting engine imbalance caused a decoupling of the gas producer stage 1 and stage 2 turbine wheels leading to a stage 1 turbine overspeed and… - [NTSB CEN24LA239](https://openairdocs.org/ntsb/CEN24LA239.md): Thrush S2R · Hebron, ND · Accident · No injuries · Class 3 · Limited · Final report · Jun 17, 2024 · N529KC · Substantial damage > Foreign object debris in the Negative Torque Sensing (NTS) system check valve, which impeded the flow of oil to the NTS system and the propeller governor (PG) reset piston, resulting in a total loss of engine power and an off-airport forced landing.… - [NTSB CEN24LA229](https://openairdocs.org/ntsb/CEN24LA229.md): Aero Commander S2R · White, SD · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 13, 2024 · N1746S · Substantial damage > A low-level collision and engine ingestion with ducks, which resulted in a total loss of engine power, a forced landing, and a subsequent nose over. - [NTSB WPR24LA161](https://openairdocs.org/ntsb/WPR24LA161.md): Aerospatiale SA315B · Hildale, UT · Accident · Minor injuries · Class 3 · Limited · Final report · May 27, 2024 · N57948 · Substantial damage > Maintenance personnel’s failure to properly secure the EGT thermocouples, which resulted in catastrophic overtemperature of the engine and a total loss of engine power. - [NTSB WPR24FA132](https://openairdocs.org/ntsb/WPR24FA132.md): Bell 206-L4 · Anaconda, MT · Accident · 1 fatal · Class 3 · Field · Final report · Apr 26, 2024 · N988B · Destroyed > A total loss of engine power due to a loss of cooling oil to the turbine-to-compressor coupling shaft and subsequent fracture of the shaft at an altitude too low for the pilot to complete a successful autorotation. Contributing to the accident was carbon… - [NTSB ERA24LA148](https://openairdocs.org/ntsb/ERA24LA148.md): Hughes 369D · Belleville, WV · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 18, 2024 · N102SU · Substantial damage > The ingestion of foreign object debris into the engine, which resulted in a sudden loss of engine power and a subsequent collision with trees and terrain during the forced landing. - [NTSB ERA24FA110](https://openairdocs.org/ntsb/ERA24FA110.md): Bombardier CL-600-2B16 · Naples, FL · Accident · 2 fatal · Class 3 · Field · Final report · Feb 9, 2024 · N823KD · Destroyed > Corrosion of both engines’ variable geometry (VG) system components, which led to their operation in an off-schedule position and resulted in near-simultaneous sub-idle rotating compressor stalls on approach, subsequent loss of thrust in both engines, and an… - [NTSB ERA24LA076](https://openairdocs.org/ntsb/ERA24LA076.md): Bell Helicopter Textron 206L-1 · Walland, TN · Accident · No injuries · Class 3 · Limited · Final report · Dec 28, 2023 · N571CJ · Substantial damage > The improper installation of the No. 8 bearing spanner nut, which resulted in the No. 8 bearing’s failure, and the subsequent total loss of engine power. - [NTSB WPR24LA041](https://openairdocs.org/ntsb/WPR24LA041.md): Bell OH-58A · Brawley, CA · Accident · No injuries · Class 3 · Limited · Final report · Nov 21, 2023 · N158TR · Substantial damage > A total loss of engine power due to the failure of the No. 8 bearing and the subsequent failure of the scavenge oil pump. - [NTSB ERA24LA012](https://openairdocs.org/ntsb/ERA24LA012.md): Beech 300 · Atlanta, GA · Accident · No injuries · Class 3 · Limited · Final report · Oct 18, 2023 · N93GA · Substantial damage > The pilot’s failure to maintain a proper approach speed, which resulted in a runway overrun. Contributing to the runway overrun were the pilot’s application of full reverse at an airspeed higher than that allowed by the system, which added power and forward… - [NTSB ERA23LA327](https://openairdocs.org/ntsb/ERA23LA327.md): Air Tractor AT502 · Leipsic, OH · Accident · No injuries · Class 3 · Limited · Final report · Aug 4, 2023 · N5048S · Substantial damage > The incorrect assembly of the turbine engine’s reduction gear box second-stage ring gear, which resulted in an internal failure of multiple engine components and a total loss of power. - [NTSB CEN23LA317](https://openairdocs.org/ntsb/CEN23LA317.md): Grumman G-164A · Patoka, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2023 · N9892 · Substantial damage > A partial loss of engine power due to the failure of two compressor turbine blades as a result of the engine operating near or above the engine’s operating limits for an undetermined amount of time beyond the recommended engine’s TBO limit, which led to… - [NTSB ENG23LA034](https://openairdocs.org/ntsb/ENG23LA034.md): Hall Lester R Legacy · Rochester, MN · Incident · No injuries · Class 3 · Limited · Final report · Jul 20, 2023 · N707MM · Minor damage > Mechanically distressed reduction gears causing an engine overspeed and turbine blade tensile overload and subsequent uncontainment. Contributing to the uncontainment was the operator’s use of the engine after knowingly purchasing the engine in an… - [NTSB WPR23LA278](https://openairdocs.org/ntsb/WPR23LA278.md): Aerospatiale AS-355E Twin Star · Farmington, UT · Accident · No injuries · Class 3 · Limited · Final report · Jul 19, 2023 · N102UM · Substantial damage > The premature failure of one of the No. 2 engine compressor bleed valve, which resulted in a partial loss of power to that engine. - [NTSB ERA23LA272](https://openairdocs.org/ntsb/ERA23LA272.md): Air Tractor AT802 · Wellington, FL · Accident · No injuries · Class 3 · Limited · Final report · Jun 20, 2023 · N3069S · Substantial damage > Wear of the fuel control unit drive shaft and the corresponding fuel pump drive gear, which resulted in the disengagement of the fuel control unit from the fuel pump, a decrease in fuel flow, and a loss of engine power. - [NTSB ENG23LA030](https://openairdocs.org/ntsb/ENG23LA030.md): Gulfstream Aerospace G-IV · Sioux City, IA · Incident · No injuries · Class 3 · Limited · Final report · Jun 17, 2023 · N926TT · Minor damage > A No. 2 (right) engine failure due to a spinner fairing separation and subsequent impact with the fan blades that resulted in a midspan fracture of one fan blade. The spinner fairing separated as a result of a fatigue crack that originated from the heat… - [NTSB CEN23LA147](https://openairdocs.org/ntsb/CEN23LA147.md): Bell OH-58A · Wade, OK · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 29, 2023 · N82851 · Substantial damage > The total loss of engine power due to fuel contamination. - [NTSB WPR22LA330](https://openairdocs.org/ntsb/WPR22LA330.md): Sikorsky S-61N · Shady Cove, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 1, 2022 · N617CK · Substantial damage > A total loss of engine power due to the failure of the No. 2 engine’s stage 1 turbine blades as a result of an unreported hot start two days earlier. - [NTSB CEN22LA349](https://openairdocs.org/ntsb/CEN22LA349.md): Schweizer G-164B · Knox, IN · Accident · No injuries · Class 3 · Limited · Final report · Jul 26, 2022 · N629EH · Substantial damage > A partial loss of engine power for undetermined reasons. - [NTSB CEN22FA317](https://openairdocs.org/ntsb/CEN22FA317.md): Bell UH-1H · Chapelle, NM · Accident · 4 fatal · Class 3 · Field · Final report · Jul 17, 2022 · N911SZ · Destroyed > The total loss of engine power due to the fatigue failure of the starter-generator input (zerol) gear which failed due to poor maintenance. Contributing to the accident was the unsuccessful autorotation complicated by the setting sun and high density altitude. - [NTSB CEN22LA312](https://openairdocs.org/ntsb/CEN22LA312.md): Air Tractor AT-502B · Decatur, IL · Accident · No injuries · Class 3 · Limited · Final report · Jul 11, 2022 · N5850R · Substantial damage > Fracture of the compressor turbine (CT) blades due to creep. - [NTSB ERA22LA302](https://openairdocs.org/ntsb/ERA22LA302.md): Air Tractor AT-502B · Center Cross, VA · Accident · No injuries · Class 3 · Limited · Final report · Jul 8, 2022 · N50075 · Substantial damage > A loss of engine power for reasons that could not be determined. - [NTSB ERA22FA279](https://openairdocs.org/ntsb/ERA22FA279.md): Bell UH-1B · Amherstdale, WV · Accident · 6 fatal · Class 1 · Field · Final report · Jun 22, 2022 · N98F · Destroyed > the operator’s failure to adequately inspect the former military turbine powered helicopter, which allowed an engine issue to progress and result in a loss of engine power and a subsequent loss of control after the helicopter struck powerlines during a forced… - [NTSB CEN22LA228](https://openairdocs.org/ntsb/CEN22LA228.md): Air Tractor AT-602 · Allport, AR · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 1, 2022 · N5007R · Substantial damage > A partial loss of engine power due to fuel contamination from foreign object debris. Contributing to the accident was the operator’s failure to follow the manufacturer’s required airframe fuel filter inspection interval. - [NTSB CEN22FA216](https://openairdocs.org/ntsb/CEN22FA216.md): Express 2000RG · Cheyenne, WY · Accident · 1 fatal · Class 3 · Field · Final report · May 30, 2022 · N44508 · Destroyed > The pilot's inability to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack while managing a loss of engine power and inflight fire, which resulted in an aerodynamic stall. Contributing factors to the accident were the loss… - [NTSB WPR22LA174](https://openairdocs.org/ntsb/WPR22LA174.md): Bell Helicopter Textron Canada 407 · Livermore, CA · Accident · Serious injuries · Class 3 · Limited · Final report · May 11, 2022 · N999GH · Substantial damage > Loss of engine power due to the pilot inadvertently selecting engine IDLE mode while in flight, which reduced rotor and engine speed to a level that could not sustain flight. - [NTSB CEN22LA146](https://openairdocs.org/ntsb/CEN22LA146.md): Hughes 369 · Adair, IA · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 17, 2022 · N500MZ · Substantial damage > The mechanic’s failure to properly torque a fuel control unit B-nut, which resulted in a partial loss of engine power, an attempted autorotation, and an impact with terrain. - [NTSB CEN22LA089](https://openairdocs.org/ntsb/CEN22LA089.md): Lancair IV · Iron Mountain, MI · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 25, 2021 · N994PT · Substantial damage > The total loss of engine power after takeoff for undetermined reasons. - [NTSB ERA22FA086](https://openairdocs.org/ntsb/ERA22FA086.md): Swearingen SA226 · Bedford, NH · Accident · 1 fatal · Class 3 · Field · Final report · Dec 11, 2021 · N54GP · Destroyed > The pilot’s failure to secure and feather the left engine and increase power on the right engine after a perceived loss of engine power in the left engine, which resulted in a loss of control and impact with terrain just short of the runway. Contributing to… - [NTSB ENG22LA002](https://openairdocs.org/ntsb/ENG22LA002.md): Airbus A320-271N · Atlantic City, NJ · Incident · Minor injuries · Class 3 · Limited · Final report · Oct 2, 2021 · N922NK · Minor damage > The ingestion of a bird into the right engine during the takeoff roll caused a fan blade to fracture near the blade platform resulting in high fan blade off loads and engine vibrations sufficient to result in an eventual failure of a fuel tube in the right… - [NTSB ERA21LA368](https://openairdocs.org/ntsb/ERA21LA368.md): Hughes 369 · Ash, NC · Accident · No injuries · Class 3 · Limited · Final report · Sep 17, 2021 · N420AT · Substantial damage > A partial loss of engine power due to corrosion and erosion damage to the engine’s compressor section components. - [NTSB WPR21LA299](https://openairdocs.org/ntsb/WPR21LA299.md): Schweizer G-164B · Tracy, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 30, 2021 · N3629F · Substantial damage > A loss of thrust during a low-level agricultural application flight, which resulted in a descent and impact with terrain. The reason for the loss of thrust could not be determined based on available information. - [NTSB ERA21LA287](https://openairdocs.org/ntsb/ERA21LA287.md): Piper PA46-500TP · Manteo, NC · Accident · No injuries · Class 3 · Limited · Final report · Jul 6, 2021 · N31062 · Substantial damage > The improperly secured pneumatic compressor discharge air (P3) line coupling nut on the engine, which ultimately allowed the nut to back off resulting in a partial loss of engine power. - [NTSB DCA21FA174](https://openairdocs.org/ntsb/DCA21FA174.md): Boeing 737-275C · Honolulu, HI · Accident · Serious injuries · Class 2 · Field · Final report · Jul 2, 2021 · N810TA · Destroyed > The flight crewmembers’ misidentification of the damaged engine (after leveling off the airplane and reducing thrust) and their use of only the damaged engine for thrust during the remainder of the flight, resulting in an unintentional descent and forced… - [NTSB CEN21LA287](https://openairdocs.org/ntsb/CEN21LA287.md): Grumman G164 · Sedgwick, AR · Accident · No injuries · Class 3 · Limited · Final report · Jun 20, 2021 · N62375 · Substantial damage > The total loss of engine power due to the failure and disengagement of the torque sensor assembly front spur gear from its splined shouldered shaft due to a loose self-locking nut. - [NTSB DCA21FA085](https://openairdocs.org/ntsb/DCA21FA085.md): Boeing 777-222 · Broomfield, CO · Incident · No injuries · Class 3 · Field · Final report · Feb 20, 2021 · N772UA · Minor damage > The fatigue failure of the right engine fan blade. Contributing to the fan blade failure was the inadequate inspection of the blades, which failed to identify low-level indications of cracking, and the insufficient frequency of the manufacturer’s inspection… - [NTSB ERA21FA130](https://openairdocs.org/ntsb/ERA21FA130.md): Bell 206 · St Thomas, CB · Accident · 4 fatal · Class 3 · Field · Final report · Feb 15, 2021 · N13AT · Destroyed > A total loss of engine power due to fatigue failure of two of the stage 3 compressor blades. Contributing to the failure of the compressor blades was the failure of maintenance personnel to inspect the compressor at the recommended interval for operation in… - [NTSB ENG21LA013](https://openairdocs.org/ntsb/ENG21LA013.md): Boeing 767-338 · Ontario, CA · Incident · Class 3 · Limited · Final report · Jan 29, 2021 · N363CM · Minor damage > The fatigue fracture and liberation of two airfoils from a low pressure turbine stage 5 nozzle segment that impacted and damaged the downstream low pressure stage 5 blades creating an initial imbalance load in the engine’s low pressure turbine rotor… - [NTSB ENG21LA011](https://openairdocs.org/ntsb/ENG21LA011.md): Cessna 501 · Opa Locka, FL · Incident · No injuries · Class 3 · Limited · Final report · Dec 31, 2020 · N75TL · Minor damage > An uncontained left engine failure caused by a low cycle fatigue crack that originated from a manufacturing machining groove on the high pressure compressor impeller aft face. Contributing to the incident was service bulletin borescope inspection criteria… - [NTSB CEN21LA004](https://openairdocs.org/ntsb/CEN21LA004.md): Piper PA46 · Lake Elmo, MN · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 2, 2020 · N62ZM · Substantial damage > A total loss of engine power for reasons that could not be determined. - [NTSB ENG20LA046](https://openairdocs.org/ntsb/ENG20LA046.md): Thrush S2R-H80 · Donalsonville, GA · Incident · No injuries · Class 3 · Limited · Final report · Sep 28, 2020 · N6216K · Minor damage > A total loss of engine power due to a loose torque meter attachment nut in the reduction gearbox that jammed the planetary gearset causing the power turbine shaft to separate from the power turbine disk, resulting in the power turbine overspeeding and… - [NTSB WPR20LA247](https://openairdocs.org/ntsb/WPR20LA247.md): Bell OH58A · Holtville, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 31, 2020 · N901XV · Substantial damage > The total loss of engine power due to the decoupling of the engine's turbine and compressor sections, which resulted from improper maintenance. - [NTSB CEN20LA287](https://openairdocs.org/ntsb/CEN20LA287.md): Air Tractor AT 602 · Des Arc, AR · Accident · No injuries · Class 3 · Limited · Final report · Jul 3, 2020 · N8506E · Substantial damage > A total loss of engine power for reasons that could not be determined from all available evidence. - [NTSB ERA20CA135](https://openairdocs.org/ntsb/ERA20CA135.md): AugustaWestland AW119MKII · Philadelphia, PA · Accident · No injuries · Data collection · Final report · Mar 21, 2020 · N982SS · Substantial damage > The in-flight failure of the lower left side of the engine cowling due to the mechanic’s improper installation of the fasteners, which resulted in the cowling impacting all four main rotor blades. Next page: https://openairdocs.org/ntsb-findings/010572/cases.md?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."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '010572')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-findings/010572/cases --- 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.