# NTSB investigations: Lycoming HIO-360 series 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 8 · 390 cases ## Latest cases - [NTSB WPR26LA270](https://openairdocs.org/ntsb/WPR26LA270.md): Enstrom F-28F · Malad City, ID · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 21, 2026 · N8624B · Substantial damage > On July 21, 2026, about 0815 mountain daylight time, an Enstrom F-28F helicopter, N8624B, was substantially damaged when it was involved in an accident near Malad City, Idaho. The pilot and pilot-rated passenger were not injured. The helicopter was operated… - [NTSB ERA26LA122](https://openairdocs.org/ntsb/ERA26LA122.md): Hughes 269A · Gettysburg, PA · Accident · Minor injuries · Class 4 · Limited · Final report · Feb 21, 2026 · N1020S · Substantial damage > The flight instructor’s failure to identify the excess power required to lift off from soft and muddy ground, which resulted in a loss of control and subsequent collision with a hangar during takeoff. - [NTSB CEN25LA103](https://openairdocs.org/ntsb/CEN25LA103.md): Starduster II · Azle, TX · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Feb 24, 2025 · N78WT · Destroyed > On February 24, 2025, at 1430 central standard time, a Starduster II airplane, N78WT, was destroyed when it was involved in an accident near Azle, Texas. The private pilot and a passenger received minor injuries. The airplane was operated as a Title 14 Code… - [NTSB WPR25FA097](https://openairdocs.org/ntsb/WPR25FA097.md): Lancair 360 · Marana, AZ · Accident · 2 fatal · Class 3 · Field · Preliminary report · Feb 19, 2025 · N3602M · 2 aircraft · Destroyed > On February 19, 2025, about 0828 mountain standard time, a Lancair 360 Mk II, N3602M, was destroyed, and a Cessna 172S, N463ER, sustained minor damage when they were involved in a mid-air collision near Marana Regional Airport (AVQ), Marana, Arizona. The… - [NTSB CEN25LA003](https://openairdocs.org/ntsb/CEN25LA003.md): Schweizer 269C · Montrose, CO · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 3, 2024 · N656RB · Substantial damage > A loss of engine power during a demonstrated autorotation due to an improperly adjusted air-fuel mixture or idle setting. Contributing to the accident was the pilot’s failure to perform the required idle check during previous flights in higher elevation areas. - [NTSB ANC23LA069](https://openairdocs.org/ntsb/ANC23LA069.md): Bellanca 8GCBC · Cordova, AK · Accident · No injuries · Class 4 · Limited · Final report · Sep 3, 2023 · N723AK · Substantial damage > The pilot’s exceedance of the airplane’s critical angle of attack during landing, which resulted in an aerodynamic stall and loss of airplane control. - [NTSB ERA23LA284](https://openairdocs.org/ntsb/ERA23LA284.md): Schweizer 269C · Macclenny, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 1, 2023 · N9WZ · Substantial damage > The improper maintenance of the landing gear dampers and main rotor elastomeric dampers, resulting in ground resonance during an unsuccessful takeoff attempt with the helicopter near its maximum gross weight for the density altitude. - [NTSB ERA23LA289](https://openairdocs.org/ntsb/ERA23LA289.md): Hughes 269A · Anderson, SC · Accident · No injuries · Class 4 · Limited · Final report · Jun 27, 2023 · N90270 · Substantial damage > The mechanics’ improper torquing of the main rotor blade dampers, which resulted in a ground resonance event during landing. - [NTSB ERA22FA262](https://openairdocs.org/ntsb/ERA22FA262.md): Enstrom F28 · Greenville, OH · Accident · 2 fatal · Class 3 · Field · Final report · Jun 7, 2022 · N600TA · Substantial damage > An impact with terrain for undetermined reasons. - [NTSB ERA22LA210](https://openairdocs.org/ntsb/ERA22LA210.md): Henderson Clifford S Super Bear CSH-1 · Indiana, PA · Accident · No injuries · Class 4 · Limited · Final report · Apr 5, 2022 · N371M · Substantial damage > The pilot's loss of directional control while landing, which resulted in a ground loop. - [NTSB ERA22LA180](https://openairdocs.org/ntsb/ERA22LA180.md): Hughes 269A · Fort White, FL · Accident · Minor injuries · Class 4 · Limited · Final report · Apr 2, 2022 · N7057L · Substantial damage > The non-instrument-rated pilot’s decision to fly a visual flight rules only helicopter in instrument meteorological conditions, which resulted in a collision with trees and terrain. - [NTSB ERA21LA357](https://openairdocs.org/ntsb/ERA21LA357.md): Enstrom F28 · Toughkenamon, PA · Accident · No injuries · Class 4 · Limited · Final report · Sep 8, 2021 · N51789 · Substantial damage > The pilot’s failure to maintain control of the helicopter during an out-of-ground effect hover in a gusty wind, due to loss of tail rotor effectiveness. - [NTSB CEN21LA253](https://openairdocs.org/ntsb/CEN21LA253.md): Schweizer TH55A/269A · Monroe, LA · Accident · No injuries · Class 4 · Limited · Final report · Jun 3, 2021 · N41G · Substantial damage > The pilot’s failure to maintain yaw control during landing which resulted in a loss of tail rotor effectiveness. - [NTSB ANC21LA038](https://openairdocs.org/ntsb/ANC21LA038.md): Enstrom F-28F · Palmer, AK · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2021 · N8627J · Substantial damage > A loss of drive to the rotor system due to the disengagement of the main belt drive tensioning system, which resulted in a forced landing. The disengagement was due to inadequate clearance between the clutch handle and the roll pin in the handle bellcrank… - [NTSB WPR21LA086](https://openairdocs.org/ntsb/WPR21LA086.md): Hughes 269C · Spanish Fork, UT · Accident · No injuries · Class 3 · Limited · Final report · Jan 13, 2021 · N7480F · Substantial damage > The loss of engine power during a practice autorotation for an undetermined reason. - [NTSB CEN21LA081](https://openairdocs.org/ntsb/CEN21LA081.md): Schweizer 269C · Rhame, ND · Accident · No injuries · Class 4 · Limited · Final report · Nov 7, 2020 · N2081G · Substantial damage > The pilot landed the helicopter on unsuitable terrain, which resulted in a rollover. - [NTSB WPR20LA190](https://openairdocs.org/ntsb/WPR20LA190.md): Schweizer 269C · North Las Vegas, NV · Accident · No injuries · Class 3 · Limited · Final report · Jun 23, 2020 · N202CC · Substantial damage > A total loss of engine power for reasons that could not be determined based on the available information. - [NTSB CEN20CA240](https://openairdocs.org/ntsb/CEN20CA240.md): Schweizer 269C · Sheffield, TX · Accident · No injuries · Class 4 · Data collection · Final report · Jun 21, 2020 · N298TH · Substantial damage > The pilot's failure to maintain adequate clearance from a fence while hovering. - [NTSB ERA20CA104](https://openairdocs.org/ntsb/ERA20CA104.md): Schweizer 269C · Ormond Beach, FL · Accident · No injuries · Data collection · Final report · Feb 17, 2020 · N731TA · Substantial damage > The student pilot's improper pedal and cyclic input while maneuvering, which resulted in a loss of helicopter control. - [NTSB GAA19CA596](https://openairdocs.org/ntsb/GAA19CA596.md): Pitts S1 · Reno, NV · Accident · No injuries · Data collection · Final report · Sep 11, 2019 · N515JD · Substantial damage > The pilot's failure to maintain directional control during landing, which resulted in a runway excursion and a ground loop. - [NTSB GAA19CA514](https://openairdocs.org/ntsb/GAA19CA514.md): Hughes 269A · Shamokin, PA · Accident · No injuries · Data collection · Final report · Aug 25, 2019 · N653CH · Substantial damage > The pilot's improper landing flare during an autorotation, which resulted in a hard landing. Contributing to the accident was a loss of engine power for reasons that could not be determined because postaccident examination revealed no evidence of any… - [NTSB GAA19CA463](https://openairdocs.org/ntsb/GAA19CA463.md): Hughes 269A · Springfield, TN · Accident · No injuries · Data collection · Final report · Jul 24, 2019 · N269RR · Substantial damage > The pilot’s failure to maintain helicopter control and a loss of tail rotor effectiveness while hover-taxiing and turning toward a taxiway in gusting crosswind conditions, which resulted in a dynamic rollover. - [NTSB ERA19LA173](https://openairdocs.org/ntsb/ERA19LA173.md): Hughes 269B · Hampton, GA · Accident · No injuries · Class 3 · Limited · Final report · May 15, 2019 · N9422F · Substantial damage > Ground resonance during landing for reasons that could not be determined based on the available information. - [NTSB ERA19TA005](https://openairdocs.org/ntsb/ERA19TA005.md): Enstrom F28 · Bridgeville, DE · Accident · No injuries · Final report · Oct 7, 2018 · N5691Y · Substantial damage > The pilot's mismanagement of collective pitch control during takeoff from an area with numerous obstacles, which resulted in the helicopter entering a low rotor rpm state and a forced hard landing. - [NTSB GAA18CA539](https://openairdocs.org/ntsb/GAA18CA539.md): Schweizer 269C · Delaware, OH · Accident · No injuries · Data collection · Final report · Sep 3, 2018 · N139JS · Substantial damage > The pilot’s improper landing flare, which resulted in a hard landing. - [NTSB WPR18LA170](https://openairdocs.org/ntsb/WPR18LA170.md): Schweizer 269C · Las Vegas, NV · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 13, 2018 · N557DC · Substantial damage > The pilot’s failure to take the appropriate corrective action for ground resonance, which resulted in a loss of helicopter control. - [NTSB GAA18CA168](https://openairdocs.org/ntsb/GAA18CA168.md): Hughes 269 · San Antonio, TX · Accident · Minor injuries · Data collection · Final report · Mar 14, 2018 · N11047 · Substantial damage > The pilot’s decision to relinquish the helicopter flight controls to a non-rated passenger during a 3 ft hover. - [NTSB GAA18CA159](https://openairdocs.org/ntsb/GAA18CA159.md): Hughes 269 · Jacksonville, FL · Accident · No injuries · Data collection · Final report · Mar 10, 2018 · N9020M · Substantial damage > The pilot’s failure to maintain rotor rpm during a practice autorotation, which resulted in ground contact and a dynamic rollover. - [NTSB WPR17IA198](https://openairdocs.org/ntsb/WPR17IA198.md): Enstrom F 28F · Glendale, AZ · Incident · No injuries · Incident investigation · Final report · Aug 22, 2017 · N52PD · No damage > An internal failure of the turbo-compressor, which resulted in oil leaking into the turbo-compressor’s exhaust. - [NTSB ERA16LA326](https://openairdocs.org/ntsb/ERA16LA326.md): Hughes 269B · Ozark, AL · Accident · Minor injuries · Limited investigation · Final report · Sep 22, 2016 · N269BS · Substantial damage > A total loss of engine power for reasons that could not be determined following a successful postaccident engine run on the accident helicopter. - [NTSB CEN16FA315](https://openairdocs.org/ntsb/CEN16FA315.md): Hughes 269C · Howe, TX · Accident · 1 fatal · Field investigation · Final report · Aug 10, 2016 · N9277R · Substantial damage > The improper execution of an autorotation following the loss of engine power, which resulted in an uncontrolled descent into terrain. Contributing to the accident was the flight instructor's lack of remedial action during the autorotation. - [NTSB CEN16FA304](https://openairdocs.org/ntsb/CEN16FA304.md): Schweizer 269C 1 · Jeanerette, LA · Accident · 1 fatal · Field investigation · Final report · Aug 3, 2016 · N1549W · Substantial damage > The pilot's loss of helicopter control for reasons that could not be determined based on available evidence. - [NTSB CEN16LA303](https://openairdocs.org/ntsb/CEN16LA303.md): Hughes 269A · Morris, MN · Accident · No injuries · Limited investigation · Final report · Jul 29, 2016 · N269JB · Substantial damage > The pilot's failure to maintain clearance from terrain due to his distraction by the navigation system. - [NTSB ERA16LA261](https://openairdocs.org/ntsb/ERA16LA261.md): Schweizer 269C · Calhoun, GA · Accident · No injuries · Limited investigation · Final report · Jul 16, 2016 · N6148D · Substantial damage > The helicopter owner’s failure to ensure the helicopter’s airworthiness and the inadequate inspection and maintenance of the helicopter's landing gear dampers, which resulted in ground resonance during throttle application. Contributing to the damage of the… - [NTSB GAA16CA363](https://openairdocs.org/ntsb/GAA16CA363.md): Hughes 269C · Cullman, AL · Accident · No injuries · Data collection · Final report · Jul 1, 2016 · N9658F · Substantial damage > The helicopter flight instructor candidate's improper execution of the autorotation, resulting in abnormal ground contact and subsequent damage to the vertical stabilizer and tail rotor drive assembly. - [NTSB CEN16LA084](https://openairdocs.org/ntsb/CEN16LA084.md): Schweizer 269C · Warrenton, MO · Accident · Minor injuries · Limited investigation · Final report · Dec 22, 2015 · N292B · Destroyed > The noninstrument-rated pilot's continued flight into instrument meteorological conditions at night, which resulted in the loss of visual reference to the ground and his subsequent failure to maintain clearance from trees. - [NTSB ERA15LA376](https://openairdocs.org/ntsb/ERA15LA376.md): Hughes 269 · Eustis, FL · Accident · Serious injuries · Limited investigation · Final report · Sep 25, 2015 · N9567F · Substantial damage > The pilot's failure to maintain yaw control as he slowed the helicopter during a landing approach, which resulted in a loss of helicopter control due to a loss of tail rotor effectiveness. - [NTSB WPR15LA261](https://openairdocs.org/ntsb/WPR15LA261.md): Schweizer 269C · Forest Grove, OR · Accident · Minor injuries · Limited investigation · Final report · Sep 18, 2015 · N290R · Substantial damage > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation. - [NTSB WPR15LA245](https://openairdocs.org/ntsb/WPR15LA245.md): Schweizer 269C · Las Vegas, NV · Accident · Minor injuries · Limited investigation · Final report · Aug 18, 2015 · N17YS · Substantial damage > A total loss of engine power during a practice autorotation for reasons that could not be determined. - [NTSB CEN15LA341](https://openairdocs.org/ntsb/CEN15LA341.md): Hughes 269B · Atkinson, IL · Accident · Serious injuries · Limited investigation · Final report · Aug 5, 2015 · N9427F · Destroyed > The pilot's improper decision to intentionally fly the helicopter at a low altitude and his subsequent failure to maintain clearance from a power line. - [NTSB GAA15CA197](https://openairdocs.org/ntsb/GAA15CA197.md): Hughes 269C · Atlanta, TX · Accident · No injuries · Data collection · Final report · Jul 21, 2015 · N58397 · Substantial damage > The non-helicopter rated pilot's improper landing flare, which resulted in impact with terrain. - [NTSB WPR15FA205](https://openairdocs.org/ntsb/WPR15FA205.md): Schweizer 269C · Newberg, OR · Accident · 2 fatal · Field investigation · Final report · Jul 2, 2015 · N2096W · Destroyed > The loss of translation/rotational power between the engine and the transmission due to the severe wear of the forward spline portion of the lower coupling drive shaft. The reason for the severe wear of the forward spline could not be definitively determined… - [NTSB CEN15CA274](https://openairdocs.org/ntsb/CEN15CA274.md): Enstrom F 28C · Romeoville, IL · Accident · No injuries · Data collection · Final report · Jun 14, 2015 · N51778 · Substantial damage > The certified flight instructor (CFI) did not maintain directional control during a downwind emergency running landing to soft muddy terrain, which resulted in a dynamic rollover. Contributing to the accident was the CFI's delayed or insufficient remedial… - [NTSB GAA15CA061](https://openairdocs.org/ntsb/GAA15CA061.md): Hughes TH 55 · Morganton, NC · Accident · Minor injuries · Data collection · Final report · May 5, 2015 · N7089S · Substantial damage > The flight instructor's delayed flare during a simulated auto rotation, which resulted in a tail rotor strike and rollover. - [NTSB WPR15CA128](https://openairdocs.org/ntsb/WPR15CA128.md): Enstrom F28 - C · Shelby, MT · Accident · No injuries · Data collection · Final report · Mar 14, 2015 · N5688N · Substantial damage > The pilot's failure to maintain main rotor RPM during a low altitude operation, which resulted in a loss of aircraft control and collision with terrain. - [NTSB CEN15WA162](https://openairdocs.org/ntsb/CEN15WA162.md): Hughes 269A · Oresten, Sweden · Accident · No injuries · Foreign investigation · Feb 6, 2015 · N90584 · Substantial damage - [NTSB CEN14CA513](https://openairdocs.org/ntsb/CEN14CA513.md): Schweizer 269C · Grand Forks, ND · Accident · No injuries · Data collection · Final report · Sep 22, 2014 · N1675U · Substantial damage > The flight instructor's inadequate supervision and delayed remedial action during a practice autorotation, which resulted in a tail rotor strike. - [NTSB CEN14LA269](https://openairdocs.org/ntsb/CEN14LA269.md): Schweizer 269C · Temple, TX · Accident · No injuries · Limited investigation · Final report · May 31, 2014 · N902CP · Substantial damage > Ground resonance due to maintenance personnel’s improper inspection of the landing gear dampers, which resulted in the dampers operating outside of allowable limits. - [NTSB CEN14LA222](https://openairdocs.org/ntsb/CEN14LA222.md): Hughes 269A · Cleburne, TX · Accident · Minor injuries · Limited investigation · Final report · Apr 25, 2014 · N90636 · Substantial damage > The student pilot's failure to maintain tail rotor clearance from terrain while transitioning to a hover taxi and the instructor pilot's inadequate remedial action to prevent the impending tail rotor contact. - [NTSB ERA14CA080](https://openairdocs.org/ntsb/ERA14CA080.md): Schweizer 269C · White Plains, NY · Accident · Minor injuries · Data collection · Final report · Dec 28, 2013 · N2056J · Substantial damage > The flight instructor's failure to maintain airspeed during a practice autorotation, which resulted in a hard landing and subsequent loss of control Next page: https://openairdocs.org/ntsb.md?engine=41524&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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41524')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41524 --- 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.