# Allison 250 SER 400HP - Type: Engine model (FAA registry) - Registry codes: 03013, 03012 - Manufacturer (registry): ALLISON - Model: 250 SER 400HP - Engine type: Turbo-shaft - Power: 400 hp - Installed in: 136 registered aircraft - Page: https://openairdocs.org/engine/allison-250-ser-400hp Model codes come from the FAA registry's reference file. The FAA lists this model under more than one registry code, usually for different spellings of the maker. This page covers them all. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (136, first 50) - [N102NJ](https://openairdocs.org/aircraft/N102NJ): [Usda Forest Service Fepp](https://openairdocs.org/faa-owner/USDA%20FOREST%20SERVICE%20FEPP), [Trenton, NJ](https://openairdocs.org/faa-place/NJ/Trenton), built 1975, S/N 1671 - [N1133C](https://openairdocs.org/aircraft/N1133C): [Sara Helicopters Inc](https://openairdocs.org/faa-owner/SARA%20HELICOPTERS%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1974, S/N 940636S - [N123RJ](https://openairdocs.org/aircraft/N123RJ): [R J Corman Railroad Co/Bardstown Line](https://openairdocs.org/faa-owner/R%20J%20CORMAN%20RAILROAD%20CO%2FBARDSTOWN%20LINE), [Nicholasville, KY](https://openairdocs.org/faa-place/KY/Nicholasville), built 1968, S/N 148 - [N125TA](https://openairdocs.org/aircraft/N125TA): [Gm Leasing Company LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20COMPANY%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), built 1974, S/N 1315 - [N126SH](https://openairdocs.org/aircraft/N126SH): [Key West Helicopters LLC](https://openairdocs.org/faa-owner/KEY%20WEST%20HELICOPTERS%20LLC), [Key West, FL](https://openairdocs.org/faa-place/FL/Key%20West), built 1974, S/N 1269 - [N133AE](https://openairdocs.org/aircraft/N133AE): [Air Evac Ems Inc](https://openairdocs.org/faa-owner/AIR%20EVAC%20EMS%20INC), [O Fallon, MO](https://openairdocs.org/faa-place/MO/O%20Fallon), built 1979, S/N 45280 - [N136JS](https://openairdocs.org/aircraft/N136JS): [Bettencourt Flg Svc Inc](https://openairdocs.org/faa-owner/BETTENCOURT%20FLG%20SVC%20INC), [Atwater, CA](https://openairdocs.org/faa-place/CA/Atwater), built 1968, S/N 136 - [N137MS](https://openairdocs.org/aircraft/N137MS): [Kansas State University](https://openairdocs.org/faa-owner/KANSAS%20STATE%20UNIVERSITY), [Salina, KS](https://openairdocs.org/faa-place/KS/Salina), built 1979, S/N 2686 - [N13WD](https://openairdocs.org/aircraft/N13WD): [Grayman Group LLC](https://openairdocs.org/faa-owner/GRAYMAN%20GROUP%20LLC), [Coeur D Alene, ID](https://openairdocs.org/faa-place/ID/Coeur%20D%20Alene), built 1975, S/N 150685S - [N1404W](https://openairdocs.org/aircraft/N1404W): [Pendley Rory G](https://openairdocs.org/faa-owner/PENDLEY%20RORY%20G), [Torrance, CA](https://openairdocs.org/faa-place/CA/Torrance), built 1968, S/N 298 - [N1435W](https://openairdocs.org/aircraft/N1435W): [Farwest Aviation LLC](https://openairdocs.org/faa-owner/FARWEST%20AVIATION%20LLC), [Billings, MT](https://openairdocs.org/faa-place/MT/Billings), S/N 916 - [N145LT](https://openairdocs.org/aircraft/N145LT): [Lt Aviation LLC](https://openairdocs.org/faa-owner/LT%20AVIATION%20LLC), [Louisa, KY](https://openairdocs.org/faa-place/KY/Louisa), S/N 1880 - [N148KY](https://openairdocs.org/aircraft/N148KY): [Commonwealth Of Kentucky](https://openairdocs.org/faa-owner/COMMONWEALTH%20OF%20KENTUCKY), [Frankfort, KY](https://openairdocs.org/faa-place/KY/Frankfort), built 1975, S/N 1795 - [N16760](https://openairdocs.org/aircraft/N16760): [Riggs Bobby W](https://openairdocs.org/faa-owner/RIGGS%20BOBBY%20W), [Lake Mary, FL](https://openairdocs.org/faa-place/FL/Lake%20Mary), built 1977, S/N 45081 - [N16770](https://openairdocs.org/aircraft/N16770): [R & T Aviation LLC](https://openairdocs.org/faa-owner/R%20%26%20T%20AVIATION%20LLC), [Ethel, LA](https://openairdocs.org/faa-place/LA/Ethel), built 1977, S/N 2147 - [N16832](https://openairdocs.org/aircraft/N16832): [Orgis B J](https://openairdocs.org/faa-owner/ORGIS%20B%20J), [Hallettsville, TX](https://openairdocs.org/faa-place/TX/Hallettsville), built 1977, S/N 2243 - [N1909R](https://openairdocs.org/aircraft/N1909R): [Centerline Holdings](https://openairdocs.org/faa-owner/CENTERLINE%20HOLDINGS), [Camden, DE](https://openairdocs.org/faa-place/DE/Camden), built 1976, S/N 1909 - [N204S](https://openairdocs.org/aircraft/N204S): [Wybenga Aviation LLC](https://openairdocs.org/faa-owner/WYBENGA%20AVIATION%20LLC), [Twin Falls, ID](https://openairdocs.org/faa-place/ID/Twin%20Falls), built 1975, S/N 1742 - [N205PA](https://openairdocs.org/aircraft/N205PA): [Ridgeline Enterprises LLC](https://openairdocs.org/faa-owner/RIDGELINE%20ENTERPRISES%20LLC), [Twin Falls, ID](https://openairdocs.org/faa-place/ID/Twin%20Falls), built 1976, S/N 1996 - [N206BG](https://openairdocs.org/aircraft/N206BG): [Merced County Sherrifs Office](https://openairdocs.org/faa-owner/MERCED%20COUNTY%20SHERRIFS%20OFFICE), [Merced, CA](https://openairdocs.org/faa-place/CA/Merced), built 1972, S/N 861 - [N206FT](https://openairdocs.org/aircraft/N206FT): [Creason Todd](https://openairdocs.org/faa-owner/CREASON%20TODD), [Carrollton, MO](https://openairdocs.org/faa-place/MO/Carrollton), built 1978, S/N 2539 - [N206KR](https://openairdocs.org/aircraft/N206KR): [Handy Air Inc](https://openairdocs.org/faa-owner/HANDY%20AIR%20INC), [Douglas, GA](https://openairdocs.org/faa-place/GA/Douglas), built 1969, S/N 437 - [N206LW](https://openairdocs.org/aircraft/N206LW): [Stanislaus County Sheriffs Department](https://openairdocs.org/faa-owner/STANISLAUS%20COUNTY%20SHERIFFS%20DEPARTMENT), [Modesto, CA](https://openairdocs.org/faa-place/CA/Modesto), built 1978, S/N 45182 - [N206NU](https://openairdocs.org/aircraft/N206NU): [North Wind Aviation LLC](https://openairdocs.org/faa-owner/NORTH%20WIND%20AVIATION%20LLC), [Chelan, WA](https://openairdocs.org/faa-place/WA/Chelan), built 1979, S/N 2708 - [N206SH](https://openairdocs.org/aircraft/N206SH): [Mc Helicopter LLC](https://openairdocs.org/faa-owner/MC%20HELICOPTER%20LLC), [Summerfield, FL](https://openairdocs.org/faa-place/FL/Summerfield), built 1975, S/N 1666 - [N206WF](https://openairdocs.org/aircraft/N206WF): [Bettencourt Flying Service Inc](https://openairdocs.org/faa-owner/BETTENCOURT%20FLYING%20SERVICE%20INC), [Atwater, CA](https://openairdocs.org/faa-place/CA/Atwater), built 1973, S/N 1135 - [N2192](https://openairdocs.org/aircraft/N2192): [Flyers Enterprises Inc](https://openairdocs.org/faa-owner/FLYERS%20ENTERPRISES%20INC), [Alpine, CA](https://openairdocs.org/faa-place/CA/Alpine), built 1977, S/N 2192 - [N219SH](https://openairdocs.org/aircraft/N219SH): built 1974, S/N 1532 - [N21MR](https://openairdocs.org/aircraft/N21MR): [Macy Robert S](https://openairdocs.org/faa-owner/MACY%20ROBERT%20S), [Post, TX](https://openairdocs.org/faa-place/TX/Post), built 1978, S/N 2370 - [N250DE](https://openairdocs.org/aircraft/N250DE): [Akheli99 LLC](https://openairdocs.org/faa-owner/AKHELI99%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1973, S/N 999 - [N27574](https://openairdocs.org/aircraft/N27574): [Ranger Aviation Leasing LLC](https://openairdocs.org/faa-owner/RANGER%20AVIATION%20LEASING%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1979, S/N 2562 - [N27AE](https://openairdocs.org/aircraft/N27AE): [Air Evac Ems Inc](https://openairdocs.org/faa-owner/AIR%20EVAC%20EMS%20INC), [O Fallon, MO](https://openairdocs.org/faa-place/MO/O%20Fallon), built 1978, S/N 45192 - [N27JB](https://openairdocs.org/aircraft/N27JB): [Cape Gyro Inc](https://openairdocs.org/faa-owner/CAPE%20GYRO%20INC), [North Chatham, MA](https://openairdocs.org/faa-place/MA/North%20Chatham), built 1973, S/N 1026 - [N27UK](https://openairdocs.org/aircraft/N27UK): [Orlando Aircraft Sales LLC](https://openairdocs.org/faa-owner/ORLANDO%20AIRCRAFT%20SALES%20LLC), [Orlando, FL](https://openairdocs.org/faa-place/FL/Orlando), built 1975, S/N 1871 - [N28ED](https://openairdocs.org/aircraft/N28ED): [Williams Management & Consulting Inc](https://openairdocs.org/faa-owner/WILLIAMS%20MANAGEMENT%20%26%20CONSULTING%20INC), [Anacoco, LA](https://openairdocs.org/faa-place/LA/Anacoco), S/N 2498 - [N28ML](https://openairdocs.org/aircraft/N28ML): [Tre Aviation Corp](https://openairdocs.org/faa-owner/TRE%20AVIATION%20CORP), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1978, S/N 1080362D - [N295CA](https://openairdocs.org/aircraft/N295CA): [Chem-Air LLC](https://openairdocs.org/faa-owner/CHEM-AIR%20LLC), [Shreveport, LA](https://openairdocs.org/faa-place/LA/Shreveport), built 1976, S/N 1929 - [N2FG](https://openairdocs.org/aircraft/N2FG): [Rmc Aviation LLC](https://openairdocs.org/faa-owner/RMC%20AVIATION%20LLC), [Klamath Falls, OR](https://openairdocs.org/faa-place/OR/Klamath%20Falls), built 1978, S/N 2514 - [N307RD](https://openairdocs.org/aircraft/N307RD): [Helicopter Services Of Illinois LLC](https://openairdocs.org/faa-owner/HELICOPTER%20SERVICES%20OF%20ILLINOIS%20LLC), [Fisher, IL](https://openairdocs.org/faa-place/IL/Fisher), built 1978, S/N 2516 - [N316TV](https://openairdocs.org/aircraft/N316TV): [Aero Products](https://openairdocs.org/faa-owner/AERO%20PRODUCTS), [Show Low, AZ](https://openairdocs.org/faa-place/AZ/Show%20Low), built 1979, S/N 2704 - [N322N](https://openairdocs.org/aircraft/N322N): [Blue Sky LLC](https://openairdocs.org/faa-owner/BLUE%20SKY%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), S/N 1507 - [N352MC](https://openairdocs.org/aircraft/N352MC): [Citrus County Mosquito Control District](https://openairdocs.org/faa-owner/CITRUS%20COUNTY%20MOSQUITO%20CONTROL%20DISTRICT), [Lecanto, FL](https://openairdocs.org/faa-place/FL/Lecanto), built 1973, S/N 1131 - [N35RP](https://openairdocs.org/aircraft/N35RP): [B & B Investments Inc](https://openairdocs.org/faa-owner/B%20%26%20B%20INVESTMENTS%20INC), [Yucaipa, CA](https://openairdocs.org/faa-place/CA/Yucaipa), S/N 1431 - [N362MN](https://openairdocs.org/aircraft/N362MN): [Heli Ag LLC](https://openairdocs.org/faa-owner/HELI%20AG%20LLC), [Plantersville, TX](https://openairdocs.org/faa-place/TX/Plantersville), built 1979, S/N 390462D - [N363CC](https://openairdocs.org/aircraft/N363CC): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1977, S/N 1070208D - [N363JS](https://openairdocs.org/aircraft/N363JS): [Wilson Robert B](https://openairdocs.org/faa-owner/WILSON%20ROBERT%20B), [Superior, AZ](https://openairdocs.org/faa-place/AZ/Superior), built 1973, S/N 930517S - [N369MP](https://openairdocs.org/aircraft/N369MP): [Aviation Advantage Inc](https://openairdocs.org/faa-owner/AVIATION%20ADVANTAGE%20INC), [Tabor City, NC](https://openairdocs.org/faa-place/NC/Tabor%20City), built 1977, S/N 670150D - [N36MK](https://openairdocs.org/aircraft/N36MK): [Horizon Helicopters Inc](https://openairdocs.org/faa-owner/HORIZON%20HELICOPTERS%20INC), [Newark, DE](https://openairdocs.org/faa-place/DE/Newark), built 1974, S/N 1360 - [N37AJ](https://openairdocs.org/aircraft/N37AJ): [L&R Investment Partners LLC](https://openairdocs.org/faa-owner/L%26R%20INVESTMENT%20PARTNERS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 1877 - [N400UC](https://openairdocs.org/aircraft/N400UC): [Pacific Rotors Inc](https://openairdocs.org/faa-owner/PACIFIC%20ROTORS%20INC), [Oceanside, CA](https://openairdocs.org/faa-place/CA/Oceanside), built 1974, S/N 1407 All 136: https://openairdocs.org/engine/allison-250-ser-400hp/aircraft.md ## NTSB investigations (231, newest 50) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN26LA181](https://openairdocs.org/ntsb/CEN26LA181), May 7, 2026: Hughes 369HS (N926ES), Durango, CO, substantial damage. Probable cause: The flight instructor’s inadequate supervision of the pilot receiving the instruction and the pilot’s improper recovery from a practice autorotation in shifting wind conditions, which resulted in a… - [NTSB CEN25LA266](https://openairdocs.org/ntsb/CEN25LA266), Jul 18, 2025: Bell B206-B (N975TR), Bloomington, IL, substantial damage. Probable cause: The pilot’s failure to avoid power lines during an aerial application flight. - [NTSB ERA25LA040](https://openairdocs.org/ntsb/ERA25LA040), Nov 5, 2024: Hughes 369D (N11AS), Waycross, GA, substantial damage. Probable cause: An encounter with a foreign object, which resulted in a loss of control and collision with terrain. - [NTSB ERA24LA172](https://openairdocs.org/ntsb/ERA24LA172), Apr 9, 2024: MD Helicopters 369FF (N5841Z), Ceiba, PR, substantial damage. Probable cause: The pilots’ failure to ensure adequate clearance from the taxiway while performing a quick stop maneuver. - [NTSB ERA23LA307](https://openairdocs.org/ntsb/ERA23LA307), Jul 21, 2023: Bell 206 (N9913K), Terra Alta, WV, substantial damage. Probable cause: The pilot’s inability to maneuver the helicopter for recovery after experiencing a strong, unanticipated tailwind in a confined operating area, which resulted in a descent and subsequent impact with… - [NTSB ERA23LA269](https://openairdocs.org/ntsb/ERA23LA269), Jun 5, 2023: Bell 206B (N27UK), Orlando, FL, substantial damage. Probable cause: The pilot’s improper landing flare during a practice autorotation, which resulted in a hard landing. - [NTSB WPR23LA214](https://openairdocs.org/ntsb/WPR23LA214), Jun 3, 2023: Bell 206B (N205PA), Filer, ID, substantial damage. Probable cause: The pilot’s improper anti-torque pedal inputs during takeoff, which resulted in a loss of helicopter control during takeoff and subsequent dynamic rollover. - [NTSB ERA22LA337](https://openairdocs.org/ntsb/ERA22LA337), Jun 18, 2022: Bell 206B (N515TV), Pelion, SC, substantial damage. Probable cause: The pilot’s improper landing flare during a practice autorotation. - [NTSB WPR22LA221](https://openairdocs.org/ntsb/WPR22LA221), Jun 17, 2022: Bell 206B (N90326), Stockton, CA, substantial damage. Probable cause: Tail rotor blade impact with an unidentified object, which resulted in the loss of control and subsequent rollover of the helicopter. - [NTSB CEN22LA219](https://openairdocs.org/ntsb/CEN22LA219), May 31, 2022: Bell 206B (N27574), Cameron, TX, substantial damage. Probable cause: The flight crew not maintaining lateral control of the helicopter during hovering operation which resulted in a dynamic rollover. - [NTSB GAA22WA099](https://openairdocs.org/ntsb/GAA22WA099), Feb 7, 2022: Hughes 369HS (N9113Q), Panama City, Panama, incident, minor damage - [NTSB ERA19WA176](https://openairdocs.org/ntsb/ERA19WA176), May 21, 2019: Bell 206 (N9956K), La Vega, Dominican Republic, substantial damage, 2 fatal - [NTSB CEN18LA290](https://openairdocs.org/ntsb/CEN18LA290), Jul 20, 2018: Bell 206 (N352CT), Todd Mission, TX, substantial damage. Probable cause: The passenger’s inadvertent interference with the tail rotor pedals, which resulted in a loss of helicopter control during takeoff and the subsequent impact with terrain. - [NTSB GAA16CA408](https://openairdocs.org/ntsb/GAA16CA408), Jul 30, 2016: Bell Helicopter Textron 206 (N206LW), Modesto, CA, substantial damage. Probable cause: The pilot's failure to maintain pitch control during an autorotation, which resulted in abnormal ground contact and main rotor contact with the tail boom. Contributing to the accident was the low… - [NTSB ERA16CA160](https://openairdocs.org/ntsb/ERA16CA160), Apr 16, 2016: Bell 206 (N326AC), Baltimore, MD, destroyed. Probable cause: The pilot's inadequate compensation for the wind while hovering out of ground effect, which resulted in a loss of tail rotor effectiveness. - [NTSB ERA16FA144](https://openairdocs.org/ntsb/ERA16FA144), Apr 4, 2016: Bell 206 (N16760), Pigeon Forge, TN, destroyed, 5 fatal. Probable cause: An inflight loss of engine power due to a failure of the engine fuel pump, which resulted in a collision with trees and terrain during the subsequent autorotation. The failure of the engine fuel pump… - [NTSB GAA16CA165](https://openairdocs.org/ntsb/GAA16CA165), Mar 26, 2016: Bell 206B (N52Q), Hanford, CA, substantial damage. Probable cause: The pilot's decision to release the collective while flying at 10 feet above ground level, resulting in the rapid helicopter descent and impact with terrain. - [NTSB GAA15LA296](https://openairdocs.org/ntsb/GAA15LA296), Sep 24, 2015: Bell 206 (N49660), Ozark, AL, substantial damage. Probable cause: The pilot's failure to maintain clearance from terrain while hovering, which resulted in the helicopter's skid impacting terrain, subsequent abnormal airframe vibrations, and a hard landing during… - [NTSB WPR15LA257](https://openairdocs.org/ntsb/WPR15LA257), Sep 3, 2015: Hughes 369HS (N9068F), Manra Island, Kiribati, destroyed, 1 fatal. Probable cause: A The loss of helicopter control for reasons that could not be determined asbecause the helicopter sank in the oceanwater and was not recovered. - [NTSB ERA15FA178](https://openairdocs.org/ntsb/ERA15FA178), Apr 6, 2015: Hughes 369D (N555JC), Cherokee, AL, substantial damage, 1 fatal. Probable cause: The pilot's spatial disorientation during a low-level river crossing in rainy, gray, reduced visibility meteorological conditions, which resulted in the helicopter's subsequent descent and impact… - [NTSB ERA15LA179](https://openairdocs.org/ntsb/ERA15LA179), Mar 24, 2015: Bell 206B (N43CM), Taylors Island, MD, substantial damage. Probable cause: 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… - [NTSB ANC15CA012](https://openairdocs.org/ntsb/ANC15CA012), Mar 10, 2015: Bell 206B (N86TA), Palmer, AK, substantial damage. Probable cause: The pilot's failure to maintain control while hovering at a low altitude, which resulted in an impact with frozen lake ice. Contributing to the accident was the pilot's decision to operate the… - [NTSB WPR14CA041](https://openairdocs.org/ntsb/WPR14CA041), Nov 2, 2013: Bell 206B (N888DR), Superior, MT, substantial damage. Probable cause: The pilot's failure to maintain aircraft control while maneuvering during a long-line operation. - [NTSB WPR14CA052](https://openairdocs.org/ntsb/WPR14CA052), Oct 28, 2013: Bell 206B (N16673), Milo, OR, substantial damage. Probable cause: The pilot's failure to see and avoid wires while maneuvering at a low-altitude, which resulted in the main rotor blades striking the wires. - [NTSB WPR12LA022](https://openairdocs.org/ntsb/WPR12LA022), Oct 27, 2011: Mcdonnell Douglas 500D (N61PJ), Colusa, CA, substantial damage. Probable cause: A total loss of engine power while maneuvering at low altitude for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal… - [NTSB ERA12MA005](https://openairdocs.org/ntsb/ERA12MA005), Oct 4, 2011: Bell 206B (N63Q), New York, NY, substantial damage, 2 fatal. Probable cause: The pilot's failure to anticipate and correct for conditions (high gross weight, low indicated airspeed, and a right downwind turn) conducive to loss of tail rotor effectiveness (LTE), which resulted… - [NTSB WPR11TA274](https://openairdocs.org/ntsb/WPR11TA274), Jun 21, 2011: Bell 206B (N38EA), Franklin, CA, substantial damage. Probable cause: The student pilot's failure to maintain rotor rpm during the practice autorotation. - [NTSB WPR11CA243](https://openairdocs.org/ntsb/WPR11CA243), May 27, 2011: Bell 206B3 (N59383), Glendale, AZ, substantial damage. Probable cause: The certified flight instructor's failure to maintain adequate main rotor RPM during the autorotation. - [NTSB CEN11FA053](https://openairdocs.org/ntsb/CEN11FA053), Nov 3, 2010: Bell 206 (N8533F), Meeker, CO, substantial damage, 1 fatal. Probable cause: The pilot's failure to maintain clearance from electrical power lines during the low-altitude flight. - [NTSB CEN11LA023](https://openairdocs.org/ntsb/CEN11LA023), Oct 13, 2010: Bell 206B (N499BH), Newton, TX, substantial damage. Probable cause: The pilot’s attempted takeoff with the fuel hose attached to the helicopter and the pilot and ground crew’s failure to accurately communicate. - [NTSB CEN10FA509](https://openairdocs.org/ntsb/CEN10FA509), Aug 31, 2010: Bell Helicopter Textron 206L-1 (N62AE), Walnut Grove, AR, substantial damage, 3 fatal. Probable cause: The pilot’s loss of aircraft control, due to spatial disorientation, resulting in the in-flight separation of the main rotor and tail boom. - [NTSB CEN10WA273](https://openairdocs.org/ntsb/CEN10WA273), May 23, 2010: Fairchild Hiller FH-1100 (N8672), Görkwitz, Germany, substantial damage, 4 fatal - [NTSB ERA09CA249](https://openairdocs.org/ntsb/ERA09CA249), Apr 17, 2009: Bell 206 (N25PM), West Palm Beach, FL, substantial damage. Probable cause: The pilot’s failure to maintain aircraft control during taxi, which resulted in a dynamic rollover. - [NTSB WPR09LA144](https://openairdocs.org/ntsb/WPR09LA144), Mar 7, 2009: MD Helicopter 369D (N501EF), Trona, CA, substantial damage. Probable cause: The pilot's failure to maintain control while landing in a high density altitude environment due to a loss of tail rotor effectiveness. - [NTSB SEA08TA188](https://openairdocs.org/ntsb/SEA08TA188), Aug 18, 2008: Hughes 369D (N622PB), Bonners Ferry, ID, substantial damage. Probable cause: The pilot's inadequate preflight planning for the takeoff and the helicopter loading that exceeded the lift performance capability of the helicopter. - [NTSB LAX08FA233](https://openairdocs.org/ntsb/LAX08FA233), Jul 19, 2008: Hughes 369D (N400BE), Price, UT, destroyed, 3 fatal. Probable cause: The pilot's inadequate preflight performance planning for the takeoff and the loading that exceeded the lift performance capability of the helicopter. - [NTSB MIA08CA040](https://openairdocs.org/ntsb/MIA08CA040), Dec 22, 2007: Agusta A109 (N109SK), ST. Augustine, FL, substantial damage. Probable cause: The pilot's failure to maintain a visual lookout while taxiing. - [NTSB SEA07CA258](https://openairdocs.org/ntsb/SEA07CA258), Sep 11, 2007: Bell 206-B2 (N205LT), Rosamond, CA, substantial damage. Probable cause: The pilot's inadequate compensation for gusting variable winds encountered after landing. Factors include gusting, suddenly shifting winds, and a hangar near the spot where the helicopter had landed. - [NTSB ATL07LA079](https://openairdocs.org/ntsb/ATL07LA079), Apr 24, 2007: Hughes 369D (N11AS), Whiteville, NC, substantial damage. Probable cause: A partial loss of engine power due to fatigue fracture of the power turbine governor spring, causing a false pneumatic signal to the fuel control and a corresponding reduction in fuel flow. - [NTSB ATL07CA076](https://openairdocs.org/ntsb/ATL07CA076), Apr 22, 2007: Bell 206-B (N219SH), Sevierville, TN, substantial damage. Probable cause: The pilot's improper use of the flight controls while at a hover that resulted in the tail colliding with the ground, a subsequent hard landing, and collapse of the skids. - [NTSB NYC06LA062](https://openairdocs.org/ntsb/NYC06LA062), Feb 17, 2006: Bell 206B (N36HF), Big Creek, KY, substantial damage. Probable cause: The pilot's inadvertent settling with power during a descent. Contributing to the accident was mechanical turbulence in the lee of an obstruction in windy conditions. - [NTSB LAX06IA011](https://openairdocs.org/ntsb/LAX06IA011), Oct 14, 2005: Hughes 369D (N58267), Kahului, HI, incident, minor damage. Probable cause: The fatigue cracking and failure of the tail rotor control rod during cruise flight, which resulted in a hard landing during the precautionary landing. - [NTSB DEN05TA119](https://openairdocs.org/ntsb/DEN05TA119), Aug 6, 2005: Hughes 369HS (N500SD), Albuquerque, NM, substantial damage. Probable cause: the bullet(s), which severed the helicopter's left tail rotor pedal. Contributing factors were the severed anti-torque pedal and the unsuitable terrain for landing. - [NTSB NYC05FA099](https://openairdocs.org/ntsb/NYC05FA099), Jun 14, 2005: Bell 206L (N78TD), New York, NY, substantial damage. Probable cause: The pilot's inadequate preflight planning, which resulted in an attempted takeoff with an overweight helicopter, and subsequent impact with a pier and water. Factors were a high ambient temperature… - [NTSB DEN05LA056](https://openairdocs.org/ntsb/DEN05LA056), Feb 3, 2005: Hughes 369HS (N9118F), Provo, UT, substantial damage. Probable cause: the pilot's improper in-flight planning and decision making, his failure to maintain terrain clearance, and the total failure of the tail rotor drive shaft as a result of the tail rotor strike. - [NTSB LAX04FA329](https://openairdocs.org/ntsb/LAX04FA329), Sep 25, 2004: Bell 206B (N16849), Kalaheo, HI, destroyed, 5 fatal. Probable cause: The pilot's decision to continue flight under visual flight rules into an area of turbulent, reduced visibility weather conditions, which resulted in the pilot's spatial disorientation and loss of… - [NTSB DEN04LA130](https://openairdocs.org/ntsb/DEN04LA130), Aug 23, 2004: Bell 206B3 (N2751U), Atlantic City, WY, substantial damage. Probable cause: the pilot's inability to maintain aircraft control, improper in-flight planning and decision making, and failure to compensate for wind conditions, resulting in collision with terrain. Contributing… - [NTSB LAX04LA281](https://openairdocs.org/ntsb/LAX04LA281), Jul 26, 2004: Bell 206B (N549W), Little Valley, CA, destroyed. Probable cause: the pilot's failure to maintain an adequate clearance from objects and terrain while maneuvering at low altitude. Factors in the accident were the high, rising terrain, and the high density altitude. - [NTSB FTW04FA168](https://openairdocs.org/ntsb/FTW04FA168), Jun 24, 2004: Bell 206-L1 (N5006F), Vermillion Bay, LA, destroyed, 3 fatal. Probable cause: The pilot's continued flight into adverse weather conditions resulting in a loss of control. Contributing factors were the prevailing thunderstorms and the pilot's inadequate in flight preparation… - [NTSB SEA04LA090](https://openairdocs.org/ntsb/SEA04LA090), May 23, 2004: Bell 206B (N206AF), Auburn, WA, substantial damage. Probable cause: Loss of control for undetermined reasons. All 231: https://openairdocs.org/engine/allison-250-ser-400hp/ntsb.md ## FAA accident and incident reports (285, newest 50) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20260507006649A](https://openairdocs.org/incident/20260507006649A), May 7, 2026: Hughes 369HS (N926ES), Durango, CO, Substantial damage. During a training maneuver, a commercially rated pilot entered an autorotation. The pilot recognized that the helicopter was going to overshoot the intended… - [Incident 20251230018569I](https://openairdocs.org/incident/20251230018569I), Dec 30, 2025: Bell Helicopter Textron 206L-1 (N43AE), Yukon, OK, No damage. While enroute, the aircraft experienced a hydraulic system failure. An emergency was declared. The aircraft landed safely with no injuries or damage reported. - [Accident 20250718010399A](https://openairdocs.org/incident/20250718010399A), Jul 18, 2025: Bell 206B (N975TR), Bloomington, IL, Substantial damage. Between 6:30 and 7:00 am, the pilot set up his “a-b line” because he still had 5 gallons of product left in the hopper from the previous day and the nurse… - [Accident 20241105021069A](https://openairdocs.org/incident/20241105021069A), Nov 5, 2024: Hughes 369D (N11AS), Waycross, GA, Destroyed. The pilot was conducting tree trimming operations on a power line right of way utilizing a 10 bladed aerial saw that slung below the helicopter. During the… - [Accident 20240409005259A](https://openairdocs.org/incident/20240409005259A), Apr 9, 2024: Md Helicopters Inc 369FF (N5841Z), Ceiba, PR, Substantial damage. On April 9, 2024, at around 1345Z, an MD helicopters [privacy data omitted] sustained substantial damage while practicing rapid deceleration/quick stop… - [Accident 20230721008829A](https://openairdocs.org/incident/20230721008829A), Jul 21, 2023: Bell 206B (N9913K), Terra Alta, WV, Destroyed. Transcribed from the pilots original written statement Started recording lidar on designated powerline. Heading southeast up into mountainous area. As we… - [Accident 20230605010779A](https://openairdocs.org/incident/20230605010779A), Jun 5, 2023: Bell 206B (N27UK), Orlando, FL, Substantial damage. The pilot started aircraft at orl about 1540 on 06/05/2023 with a maintenance person in the left seat as an observer. Pilot departed the hangar area and… - [Accident 20230603006099A](https://openairdocs.org/incident/20230603006099A), Jun 3, 2023: Bell 206B (N205PA), Filer, ID, Substantial damage. As pilot pulled collective pitch, not realizing the amount of left torque pedal input he had applied, the aircrafts weight on skids decreased, the aircraft… - [Incident 20230318013899I](https://openairdocs.org/incident/20230318013899I), Mar 18, 2023: Bell 206B (N867CH), Fitzgerald, GA, No damage, 1 fatal. High level of skydiving experience (5000 jumps) On March 16th thru the 19th an event named [privacy data omitted]was held at Fitzgerald municipal airport… - [Accident 20220618010589A](https://openairdocs.org/incident/20220618010589A), Jun 18, 2022: Bell 206B (N515TV), Pelion, SC, Substantial damage. Pilot had completed several practice approaches at Lexington County Airport (6J0) and then performed a practice autorotation with the throttle in the idle… - [Accident 20220617006419A](https://openairdocs.org/incident/20220617006419A), Jun 17, 2022: Bell 206B (N90326), Stockton, CA, Destroyed. Agricultural helo (no chemicals) crashed. Summary of findings: Helicopter resting on l/h side in almond tree orchard. Helicopter is intact other than a missing… - [Accident 20220531009229A](https://openairdocs.org/incident/20220531009229A), May 31, 2022: Bell 206B (N27574), Cameron, TX, Destroyed. During training flight in stationationary hover aircraft control was moved to right causeing aircraft rotor to come in contact with the ground. - [Incident 20200830016239I](https://openairdocs.org/incident/20200830016239I), Aug 30, 2020: Bell Helicopter Textron 206L-1 (N59AE), Claremore, OK, No damage. On August 30, 2020 at approximately 1700 CST, N59AE, a BHT-206-L1+, S/n 45291, located at [privacy data omitted] base AE-029 in Claremore, Oklahoma experienced… - [Accident 20190521023039A](https://openairdocs.org/incident/20190521023039A), May 21, 2019: Bell 206B (N9956K), Puerto Plata, Destroyed, 3 fatal. Helicopter accident approximately 15NM west of Puerto Plata, dominican republic. Aircraft was a Bell 206B, s/n 2066 helicopter. Three total on board, all… - [Accident 20180720018729A](https://openairdocs.org/incident/20180720018729A), Jul 20, 2018: Bell 206B (N352CT), Todd Mission, TX, Substantial damage. On July 20, 2018, a Bell model 206B helicopter crashed on takeoff from fairgroundd located in Todd Mission, TX. Four pax on board all sustained minor injures.… - [Incident 20160916018639I](https://openairdocs.org/incident/20160916018639I), Sep 16, 2016: Bell Helicopter Textron 206L-1 (N59AE), Potosi, MO, Minor damage. On September 16, 2016 at 02:45 am central standard time, N59AE, a BHT-206L-1+ helicopter, had just executed an approach to the landing pad from the north,… - [Accident 20160730025009A](https://openairdocs.org/incident/20160730025009A), Jul 30, 2016: Bell Helicopter Textron 206L-1 (N206LW), Modesto, CA, Substantial damage. At 4:40 am while returning from a hiker rescue mission with the stainislaus county sherrif's department in a Bell 206, the pilot was asked to return to the… - [Accident 20160416003039A](https://openairdocs.org/incident/20160416003039A), Apr 16, 2016: Bell 206B (N326AC), Baltimore, MD, Destroyed. Description of accident: On 04/16/16, a Bell 206B(N326AC), operating under part 91,was performing power line observations for Baltimore gas & electric. The… - [Accident 20160404021409A](https://openairdocs.org/incident/20160404021409A), Apr 4, 2016: Bell 206L (N16760), Pigeon Forge, TN, Destroyed, 5 fatal. On April 4, 2016, about 1610 eastern daylight time, a Bell 206L, N16760, was destroyed when it impacted terrain while maneuvering in Pigeon Forge, Tennessee.… - [Accident 20160326007469A](https://openairdocs.org/incident/20160326007469A), Mar 26, 2016: Bell 206B (N52Q), Hanford, CA, Substantial damage. On March 26, 2016, N52Q was operating under part 91 practicing aerial application in a helicopter when the aircraft struck the earth at 8:05AM. The pilot… - [Accident 20150924017459A](https://openairdocs.org/incident/20150924017459A), Sep 24, 2015: Bell 206B (N49660), Ozark, AL, Substantial damage. Came to hover, translated left and snagged the LH skid. Recovered, felt vibration , pilot decided to attempt a hovering autorotation , resulting in a hard… - [Accident 20150406006079A](https://openairdocs.org/incident/20150406006079A), Apr 6, 2015: Hughes 369D (N555JC), Cherokee, AL, Substantial damage, 1 fatal. On 4/6/2015 helicopter N555JC impacted the Tennessee river near the natchez chase bridge in Cherokee, AL. The PIC was attempting to navigate from corinth, ms… - [Accident 20150324004229A](https://openairdocs.org/incident/20150324004229A), Mar 24, 2015: Bell 206B (N43CM), Taylors Island, MD, Substantial damage. Pilot stated during level cruise there was a sudden drop in altitude, followed by a 90 degree rotation to the left. The pilot performed autorotation into the… - [Accident 20150310003009A](https://openairdocs.org/incident/20150310003009A), Mar 10, 2015: Bell 206B (N86TA), Palmer, AK, Substantial damage. Pilot was in a hover over the knik glacier. Pilot was flying by himself from left seat. Pilot lost track of rotor RPM while concentrating on correcting N2, and… - [Incident 20141009020399I](https://openairdocs.org/incident/20141009020399I), Oct 9, 2014: Bell Helicopter Textron 206L-1 (N43AE), Danville, KY, Substantial damage. A company mechanic who was run qualified by air evac was conducting an after maintenance run up check of the aircraft on the ramp outside the hangar. Weather… - [Accident 20131102020059A](https://openairdocs.org/incident/20131102020059A), Nov 2, 2013: Bell 206B (N888DR), Superior, MT, Substantial damage. On November 2, 2013, at approximately 1315 MST, a Bell BHT-206-B, N888DR, registered to Montana aero inc. collided with a large bark mulch pile while… - [Accident 20131028020669A](https://openairdocs.org/incident/20131028020669A), Oct 28, 2013: Bell 206B (N16673), Days Creek, OR, Destroyed. While flying near Days Creek, Oregon, the aircraft struck three power wires crossing the south fork of the umpqua river. The aircraft was operated by tl forest… - [Incident 20120818020439I](https://openairdocs.org/incident/20120818020439I), Aug 18, 2012: Bell 206B (N205PA), Point Hope, AK, Substantial damage. Suffered engine failure 50 ft above ground and at 40 knots on short final entered autorotation and landed hard. - [Accident 20111027026959A](https://openairdocs.org/incident/20111027026959A), Oct 27, 2011: Hughes 369D (N61PJ), Colusa, CA, Substantial damage. On October 27, 2011, about 1440 pacific daylight time, a Mcdonnell Douglas MD-500D helicopter, N61PJ, was substantially damaged during an autorotation and… - [Accident 20111004023829A](https://openairdocs.org/incident/20111004023829A), Oct 4, 2011: Bell 206B (N63Q), New York, NY, Destroyed, 2 fatal. On October 4, 2011, 1525 eastern daylight time a Bell 206B, N63Q, registered to a private owner collided with the east river (salt water) during takeoff from… - [Accident 20110621010929A](https://openairdocs.org/incident/20110621010929A), Jun 21, 2011: Bell 206B (N38EA), Franklin, CA, Destroyed. Per pilot, he was practicing autorotations and had done several already. During the last autorotation to a power recovery, when he rolled the throtle back on,… - [Accident 20110527012299A](https://openairdocs.org/incident/20110527012299A), May 27, 2011: Bell 206B (N59383), Glendale, AZ, Substantial damage. At approximately 8:30 a.m. on may 27, 2011 a Bell 206B helicopter (N59383) experienced a hard landing in a confined area approximately 15 miles north of… - [Accident 20101103049709A](https://openairdocs.org/incident/20101103049709A), Nov 3, 2010: Bell 206B (N8533F), Meeker, CO, Destroyed, 1 fatal. [privacy data omitted] Was PIC of a Bell 206, N8533F flying a part 91 pipeline patrol. They were approx. 10 miles north west of Meeker co. at approx 1500 local… - [Incident 20101015048279I](https://openairdocs.org/incident/20101015048279I), Oct 15, 2010: Md Helicopt 369FF (N5841Z), Utuado, PR, Substantial damage. During flight pilot reported a strong sound coming from tail rotor and after that tail rotor vibration. Pilot did a precautionary landing in an open field. - [Accident 20101013051219A](https://openairdocs.org/incident/20101013051219A), Oct 13, 2010: Bell 206B (N499BH), Winnie, TX, Destroyed. The pilot landed ontop of a fuel truck to refuel. One of the ground personel made a hand gesture that the pilot mistook as a signal for takeoff. Upon lifting… - [Accident 20100831045829A](https://openairdocs.org/incident/20100831045829A), Aug 31, 2010: Bell Helico 206L-1 (N62AE), Walnut Grove, AR, Destroyed, 3 fatal. Radar returns show the aircraft in level flight for a considerable length of time. The radar track shows the aircraft climbing abruptly and making a left turn.… - [Accident 20090407007819A](https://openairdocs.org/incident/20090407007819A), Apr 7, 2009: Bell 206B (N25PM), West Palm Beac, FL, Substantial damage. (-23) Pilot had just dropped off one passenger and some light cargo onto a pier built in the preserve from which wildife is observed. Pilot was water taxing… - [Accident 20090307003959A](https://openairdocs.org/incident/20090307003959A), Mar 7, 2009: Hughes 369D (N501EF), Inyokern, CA, Substantial damage. (-23) On 03/07/09 at approximately 1845Z (1045PDT), the pilot of aircraft N501EF, a Hughes 369D, was attempting to perform a high altitude landing at rogers… - [Incident 20080819842849I](https://openairdocs.org/incident/20080819842849I), Aug 19, 2008: Hughes 369D (N622PB), ID, Minor damage. (-23) During takeoff from a remote temporary helipad N622PB helicopter settled striking the tailrotor blades. The damage was limited to the two tailrotor… - [Accident 20080719841239A](https://openairdocs.org/incident/20080719841239A), Jul 19, 2008: Hughes 369D (N400BE), Price, UT, Destroyed, 3 fatal. (-23) On 07/19/08 at 1540 MDT a Hughes 369D helicopter N400BE impacted the ground while trying to maintain altitude just after taking off from Carbon county… - [Accident 20070911018949A](https://openairdocs.org/incident/20070911018949A), Sep 11, 2007: Bell 206B (N205LT), Rosamond, CA, Substantial damage. (-23) Aircraft landed, pilot stated that he rolled the throttle to flight idle and tightened the cyclic friction, then aircraft impacted a hangar approximately… - [Incident 20070627017979I](https://openairdocs.org/incident/20070627017979I), Jun 27, 2007: Hughes 369FF (N5841Z), Rio Grande, Puerto Rico, Minor damage. (-23) Pilot conducted low level power line patrolling. Over mountainous area while cruising at 30 KTS pilot encountered an old 13,000 volts line that was… - [Accident 20070424008609A](https://openairdocs.org/incident/20070424008609A), Apr 24, 2007: Hughes 369D (N11AS), Tabor City, NC, Substantial damage. (-23) Aircraft was enroute from its home location to the columbus county airport (cpc) for external load training. The aircraft was carrying a "long line" and… - [Accident 20060217002839A](https://openairdocs.org/incident/20060217002839A), Feb 17, 2006: Bell 206B (N36HF), Manchester, KY, Substantial damage. (-23) The helicopter was being repositioned from charleston w. VA (crw) to middlesboro KY (1A6) in order to conduct a part 135 flight. Prior to reaching 1A6… - [Incident 20051125030009I](https://openairdocs.org/incident/20051125030009I), Nov 25, 2005: Bell 206B (N499BH), Evadale, TX, Minor damage. (-23) At 400 feet MSL, 4 miles sseof Evadale, Texas, returning to landing zone with 100' external long line and empty basket, pilot felt a loug "bang", noted… - [Accident 20050806016959A](https://openairdocs.org/incident/20050806016959A), Aug 6, 2005: Hughes 369HS (N500SD), Albuquerque, NM, Destroyed. (-23) On August 6, 2005, at 0045 MDT, a Hughes HU-369-HS, N500SD, registered to bernalillo county sheriff's department made an emergency landing in the rear of… - [Accident 20050614033659A](https://openairdocs.org/incident/20050614033659A), Jun 14, 2005: Bell 206L (N78TD), New York, NY, Substantial damage. (-23) Helicopter apparently experienced rotor droop due to an over gross weight condition and high density altitude (hot humid day) that caused the aircraft to… - [Accident 20050203001489A](https://openairdocs.org/incident/20050203001489A), Feb 3, 2005: Hughes 369HS (N9118F), Provo, UT, Substantial damage. (-23) Pilot states that during a mission to perform avalanche control in high mountainous terrain, 10,000' to 11,400' at some point he was hovering at about 4'… - [Accident 20040924027559A](https://openairdocs.org/incident/20040924027559A), Sep 24, 2004: Bell 206B (N16849), Kalaheo, HI, Destroyed, 5 fatal. (-23) On September 24, 2004, approximately 1640 hawaiian standard time, a Bell 206B single-engine helicopter, N16849, was destroyed when it impacted… - [Accident 20040823019389A](https://openairdocs.org/incident/20040823019389A), Aug 23, 2004: Bell 206B (N2751U), Atlantic City, WY, Destroyed. (-23) During an aerial filming flight at 50' to 75' AGL, aircraft turned downwind with estimated wind speed of 30 knots. Aircraft encountered a strong gust of… All 285: https://openairdocs.org/engine/allison-250-ser-400hp/incidents.md --- 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.