# Lycoming T53-L-13 - Type: Engine model (FAA registry) - Registry code: 41551 - Manufacturer (registry): LYCOMING - Model: T53-L-13 - Engine type: Turbo-shaft - Power: 1,400 hp - Installed in: 62 registered aircraft - Page: https://openairdocs.org/engine/lycoming-t53-l-13 Model codes come from the FAA registry's reference file. ## 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 (62, first 50) - [N102FW](https://openairdocs.org/aircraft/N102FW): [Sierra Aeronautics LLC](https://openairdocs.org/faa-owner/SIERRA%20AERONAUTICS%20LLC), [Franklin, KY](https://openairdocs.org/faa-place/KY/Franklin), S/N 62-1905 - [N105VV](https://openairdocs.org/aircraft/N105VV): [7242v LLC](https://openairdocs.org/faa-owner/7242V%20LLC), [Lewes, DE](https://openairdocs.org/faa-place/DE/Lewes), built 1970, S/N 8498 - [N107CH](https://openairdocs.org/aircraft/N107CH): [Airlift Helicopters Services](https://openairdocs.org/faa-owner/AIRLIFT%20HELICOPTERS%20SERVICES), [Seal Beach, CA](https://openairdocs.org/faa-place/CA/Seal%20Beach), built 1967, S/N 67-17290 - [N111DR](https://openairdocs.org/aircraft/N111DR): [Northwest Helicopters I Inc](https://openairdocs.org/faa-owner/NORTHWEST%20HELICOPTERS%20I%20INC), [Olympia, WA](https://openairdocs.org/faa-place/WA/Olympia), built 1996, S/N 64-13699 - [N114DR](https://openairdocs.org/aircraft/N114DR): [Northwest Helicopters I Inc](https://openairdocs.org/faa-owner/NORTHWEST%20HELICOPTERS%20I%20INC), [Olympia, WA](https://openairdocs.org/faa-place/WA/Olympia), built 1995, S/N 66-00792 - [N118DR](https://openairdocs.org/aircraft/N118DR): [Heli-Huey Corp](https://openairdocs.org/faa-owner/HELI-HUEY%20CORP), [El Paso, TX](https://openairdocs.org/faa-place/TX/El%20Paso), S/N 66-00903, Non-citizen corporation, flight hours not reported - [N1215F](https://openairdocs.org/aircraft/N1215F): [Jzw Aviation LLC](https://openairdocs.org/faa-owner/JZW%20AVIATION%20LLC), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 1964, S/N 64-13688 - [N143SP](https://openairdocs.org/aircraft/N143SP): [Regenald Michaud Aviation LLC](https://openairdocs.org/faa-owner/REGENALD%20MICHAUD%20AVIATION%20LLC), [Willows, CA](https://openairdocs.org/faa-place/CA/Willows), S/N 66-01065 - [N1577](https://openairdocs.org/aircraft/N1577): [Mccarty David M](https://openairdocs.org/faa-owner/MCCARTY%20DAVID%20M), [Baker City, OR](https://openairdocs.org/faa-place/OR/Baker%20City), built 1965, S/N 65-09577 - [N166DR](https://openairdocs.org/aircraft/N166DR): [Oas2 LLC](https://openairdocs.org/faa-owner/OAS2%20LLC), [Orlando, FL](https://openairdocs.org/faa-place/FL/Orlando), built 1995, S/N 66-16949 - [N16HX](https://openairdocs.org/aircraft/N16HX): [Helicopter Express LLC](https://openairdocs.org/faa-owner/HELICOPTER%20EXPRESS%20LLC), [Chamblee, GA](https://openairdocs.org/faa-place/GA/Chamblee), built 1979, S/N 30293 - [N16TV](https://openairdocs.org/aircraft/N16TV): [Sei Holdings LLC](https://openairdocs.org/faa-owner/SEI%20HOLDINGS%20LLC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 1969, S/N 69-15455 - [N204BS](https://openairdocs.org/aircraft/N204BS): [Intermountain Helicopters Inc](https://openairdocs.org/faa-owner/INTERMOUNTAIN%20HELICOPTERS%20INC), [Cottage Grove, OR](https://openairdocs.org/faa-place/OR/Cottage%20Grove), built 1963, S/N 63-8699 - [N204HT](https://openairdocs.org/aircraft/N204HT): [Jones Flying Service](https://openairdocs.org/faa-owner/JONES%20FLYING%20SERVICE), [Biggs, CA](https://openairdocs.org/faa-place/CA/Biggs), built 1962, S/N 62-2078 - [N205DP](https://openairdocs.org/aircraft/N205DP): [Dillon Uh-1h LLC](https://openairdocs.org/faa-owner/DILLON%20UH-1H%20LLC), [Scottsdale, AZ](https://openairdocs.org/faa-place/AZ/Scottsdale), built 1968, S/N 68-16056 - [N205JG](https://openairdocs.org/aircraft/N205JG): [Frederico Leonard A](https://openairdocs.org/faa-owner/FREDERICO%20LEONARD%20A), [Fresno, CA](https://openairdocs.org/faa-place/CA/Fresno), S/N 67-17686 - [N247PV](https://openairdocs.org/aircraft/N247PV): [Pacific Valley Aviation Inc](https://openairdocs.org/faa-owner/PACIFIC%20VALLEY%20AVIATION%20INC), [Arbuckle, CA](https://openairdocs.org/faa-place/CA/Arbuckle), built 1965, S/N 65-9649 - [N301HP](https://openairdocs.org/aircraft/N301HP): [Pope Jim D](https://openairdocs.org/faa-owner/POPE%20JIM%20D), [Clarkston, WA](https://openairdocs.org/faa-place/WA/Clarkston), built 1965, S/N 65-10017 - [N3181F](https://openairdocs.org/aircraft/N3181F): [Salmon River Helicopters Inc](https://openairdocs.org/faa-owner/SALMON%20RIVER%20HELICOPTERS%20INC), [Riggins, ID](https://openairdocs.org/faa-place/ID/Riggins), built 1964, S/N 64-15486 - [N32240](https://openairdocs.org/aircraft/N32240): [Ventura County Sheriffs Department](https://openairdocs.org/faa-owner/VENTURA%20COUNTY%20SHERIFFS%20DEPARTMENT), [Camarillo, CA](https://openairdocs.org/faa-place/CA/Camarillo), built 1981, S/N 30012 - [N354HF](https://openairdocs.org/aircraft/N354HF): [Army Aviation Heritage Foundation](https://openairdocs.org/faa-owner/ARMY%20AVIATION%20HERITAGE%20FOUNDATION), [Hampton, GA](https://openairdocs.org/faa-place/GA/Hampton), built 1964, S/N 69-15354 - [N369UH](https://openairdocs.org/aircraft/N369UH): [American Huey 369 Inc](https://openairdocs.org/faa-owner/AMERICAN%20HUEY%20369%20INC), [Peru, IN](https://openairdocs.org/faa-place/IN/Peru), built 1970, S/N 70-16369 - [N383PD](https://openairdocs.org/aircraft/N383PD): [Over The Top Aviation Inc](https://openairdocs.org/faa-owner/OVER%20THE%20TOP%20AVIATION%20INC), [Jonesboro, AR](https://openairdocs.org/faa-place/AR/Jonesboro), built 1968, S/N 68-16383 - [N40690](https://openairdocs.org/aircraft/N40690): [Slikker Flying Service Inc](https://openairdocs.org/faa-owner/SLIKKER%20FLYING%20SERVICE%20INC), [Buttonwillow, CA](https://openairdocs.org/faa-place/CA/Buttonwillow), built 1966, S/N 66-00816 - [N40729](https://openairdocs.org/aircraft/N40729): [Hlh Leasing LLC](https://openairdocs.org/faa-owner/HLH%20LEASING%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 69-15233 - [N417NA](https://openairdocs.org/aircraft/N417NA): [Vi 1 LLC](https://openairdocs.org/faa-owner/VI%201%20LLC), [Brewster, WA](https://openairdocs.org/faa-place/WA/Brewster), built 1965, S/N 64-13628 - [N426HF](https://openairdocs.org/aircraft/N426HF): [Army Aviation Heritage Foundation Inc](https://openairdocs.org/faa-owner/ARMY%20AVIATION%20HERITAGE%20FOUNDATION%20INC), [Hampton, GA](https://openairdocs.org/faa-place/GA/Hampton), built 1970, S/N 70-16426 - [N431LH](https://openairdocs.org/aircraft/N431LH): [Ds Flight Services LLC](https://openairdocs.org/faa-owner/DS%20FLIGHT%20SERVICES%20LLC), [Battle Ground, WA](https://openairdocs.org/faa-place/WA/Battle%20Ground), built 1971, S/N 71-20257 - [N444XL](https://openairdocs.org/aircraft/N444XL): [Pacific Valley Aviation Inc](https://openairdocs.org/faa-owner/PACIFIC%20VALLEY%20AVIATION%20INC), [Arbuckle, CA](https://openairdocs.org/faa-place/CA/Arbuckle), built 1967, S/N 67-17160 - [N461CC](https://openairdocs.org/aircraft/N461CC): [Avag Inc](https://openairdocs.org/faa-owner/AVAG%20INC), [Richvale, CA](https://openairdocs.org/faa-place/CA/Richvale), built 1967, S/N 67-17162 - [N462CC](https://openairdocs.org/aircraft/N462CC): [Hagglund Linda R](https://openairdocs.org/faa-owner/HAGGLUND%20LINDA%20R), [Pendleton, OR](https://openairdocs.org/faa-place/OR/Pendleton), built 1965, S/N 6509666 - [N503TW](https://openairdocs.org/aircraft/N503TW): [25th Infantry Division Huey LLC](https://openairdocs.org/faa-owner/25TH%20INFANTRY%20DIVISION%20HUEY%20LLC), [Bend, OR](https://openairdocs.org/faa-place/OR/Bend), S/N 65-09961 - [N514DR](https://openairdocs.org/aircraft/N514DR): [Machugh Dave](https://openairdocs.org/faa-owner/MACHUGH%20DAVE), [Pasco, WA](https://openairdocs.org/faa-place/WA/Pasco), built 1972, S/N 72-21622 - [N5517N](https://openairdocs.org/aircraft/N5517N): [Base Camp Holdings LLC](https://openairdocs.org/faa-owner/BASE%20CAMP%20HOLDINGS%20LLC), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), built 1967, S/N 67-17391 - [N567VF](https://openairdocs.org/aircraft/N567VF): [Kash Helicopter Services LLC](https://openairdocs.org/faa-owner/KASH%20HELICOPTER%20SERVICES%20LLC), [Mount Vernon, IL](https://openairdocs.org/faa-place/IL/Mount%20Vernon), built 1966, S/N 65-10016 - [N56CF](https://openairdocs.org/aircraft/N56CF): [Vertol Systems Inc](https://openairdocs.org/faa-owner/VERTOL%20SYSTEMS%20INC), [Destin, FL](https://openairdocs.org/faa-place/FL/Destin), built 1964, S/N 64-13880 - [N578BM](https://openairdocs.org/aircraft/N578BM): [American Honor Foundation Inc](https://openairdocs.org/faa-owner/AMERICAN%20HONOR%20FOUNDATION%20INC), [Melbourne Beach, FL](https://openairdocs.org/faa-place/FL/Melbourne%20Beach), built 2013, S/N 20242 - [N57KA](https://openairdocs.org/aircraft/N57KA): [Hagglund Carl D](https://openairdocs.org/faa-owner/HAGGLUND%20CARL%20D), [Pendleton, OR](https://openairdocs.org/faa-place/OR/Pendleton), built 1966, S/N 66-16657 - [N600MA](https://openairdocs.org/aircraft/N600MA): [Regenald Michaud Aviation LLC](https://openairdocs.org/faa-owner/REGENALD%20MICHAUD%20AVIATION%20LLC), [Willows, CA](https://openairdocs.org/faa-place/CA/Willows), built 1964, S/N 64-13970 - [N60901](https://openairdocs.org/aircraft/N60901): [Pacific Valley Aviation Inc](https://openairdocs.org/faa-owner/PACIFIC%20VALLEY%20AVIATION%20INC), [Arbuckle, CA](https://openairdocs.org/faa-place/CA/Arbuckle), built 1970, S/N 70-16232 - [N624HF](https://openairdocs.org/aircraft/N624HF): [Army Aviation Heritage Foundation Inc](https://openairdocs.org/faa-owner/ARMY%20AVIATION%20HERITAGE%20FOUNDATION%20INC), [Hampton, GA](https://openairdocs.org/faa-place/GA/Hampton), built 1966, S/N 66-16624 - [N651GB](https://openairdocs.org/aircraft/N651GB): [Air Cav Helicopters LLC](https://openairdocs.org/faa-owner/AIR%20CAV%20HELICOPTERS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2005, S/N 65-10105 - [N651MH](https://openairdocs.org/aircraft/N651MH): [Cinema Aircraft Restoration LLC](https://openairdocs.org/faa-owner/CINEMA%20AIRCRAFT%20RESTORATION%20LLC), [Las Vegas, NV](https://openairdocs.org/faa-place/NV/Las%20Vegas), built 1965, S/N 65-09651 - [N658HA](https://openairdocs.org/aircraft/N658HA): [Helicopter Applicators Inc](https://openairdocs.org/faa-owner/HELICOPTER%20APPLICATORS%20INC), [Gettysburg, PA](https://openairdocs.org/faa-place/PA/Gettysburg), built 1968, S/N 68-15458 - [N65AD](https://openairdocs.org/aircraft/N65AD): [West Valley Aviation Inc](https://openairdocs.org/faa-owner/WEST%20VALLEY%20AVIATION%20INC), [Five Points, CA](https://openairdocs.org/faa-place/CA/Five%20Points), built 1966, S/N 66-16439 - [N660TB](https://openairdocs.org/aircraft/N660TB): [Air Cav Helicopters LLC](https://openairdocs.org/faa-owner/AIR%20CAV%20HELICOPTERS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1966, S/N 6601182 - [N661TX](https://openairdocs.org/aircraft/N661TX): [Air Cav Helicopters LLC](https://openairdocs.org/faa-owner/AIR%20CAV%20HELICOPTERS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1966, S/N 6616101 - [N669KB](https://openairdocs.org/aircraft/N669KB): [Sof Air Inc](https://openairdocs.org/faa-owner/SOF%20AIR%20INC), [Ashland, OR](https://openairdocs.org/faa-place/OR/Ashland), built 1966, S/N 66-1229 - [N7130G](https://openairdocs.org/aircraft/N7130G): [Jzw Aviation LLC](https://openairdocs.org/faa-owner/JZW%20AVIATION%20LLC), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 1966, S/N 66-16066 - [N72297](https://openairdocs.org/aircraft/N72297): [American Ag Aviation Inc DBA](https://openairdocs.org/faa-owner/AMERICAN%20AG%20AVIATION%20INC%20DBA), [Five Points, CA](https://openairdocs.org/faa-place/CA/Five%20Points), built 1967, S/N 67-17147 All 62: https://openairdocs.org/engine/lycoming-t53-l-13/aircraft.md ## NTSB investigations (29) 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 CEN23FA340](https://openairdocs.org/ntsb/CEN23FA340), Jul 31, 2023: Richards Heavylift Helo UH-1H (N567VF), Oakdale, IL, substantial damage, 1 fatal. Probable cause: An in-flight loss of control for undetermined reasons. - [NTSB WPR22FA098](https://openairdocs.org/ntsb/WPR22FA098), Feb 17, 2022: Bell UH-1H (N72297), Coalinga, CA, substantial damage, 1 fatal. Probable cause: The pilot’s loss of situational awareness for reasons that could not be determined given the available evidence, which led to controlled flight into terrain. Contributing to the accident was the… - [NTSB CEN21LA212](https://openairdocs.org/ntsb/CEN21LA212), May 10, 2021: Richards Heavylift Helo UH-1H (N567VF), Norris City, IL, substantial damage. Probable cause: The pilot’s improper positioning of the helicopter on the landing pad, and his failure to monitor and control the helicopter as fuel and chemical product were loaded, which led to the helicopter… - [NTSB GAA21WA103](https://openairdocs.org/ntsb/GAA21WA103), May 2, 2021: Precision Helicopters UH-1H (N1206G), Rayón, Mexico, substantial damage - [NTSB GAA19CA344](https://openairdocs.org/ntsb/GAA19CA344), Jun 6, 2019: Bell UH 1H (N4085L), Bethel, AK, substantial damage. Probable cause: The pilot's improper fuel planning, which resulted in fuel exhaustion and a total loss of engine power, and his improper landing flare during a forced autorotation, which resulted in a hard landing.… - [NTSB WPR18LA206](https://openairdocs.org/ntsb/WPR18LA206), Jul 24, 2018: Bell UH 1H (N107CH), Oakdale, CA, substantial damage. Probable cause: The pilot's loss of control during a precautionary landing following an abnormal noise in-flight, the source of which could not be determined. - [NTSB WPR18LA147](https://openairdocs.org/ntsb/WPR18LA147), May 25, 2018: Bell UH 1H (N111DR), Olympia, WA, substantial damage. Probable cause: A loss of tail rotor thrust due to the improper installation of the tail rotor assembly by maintenance personnel resulted in the pilot’s inability to maintain control of the helicopter as he began… - [NTSB WPR18LA004](https://openairdocs.org/ntsb/WPR18LA004), Oct 13, 2017: Western International Avia UH 1H (N247PV), Arbuckle, CA, substantial damage. Probable cause: A collective control malfunction for reasons that could not be determined. - [NTSB WPR15LA178](https://openairdocs.org/ntsb/WPR15LA178), May 31, 2015: Garlick Helicopters UH 1H (N462CC), Cove, OR, substantial damage. Probable cause: The failure of the engine-to-transmission drive shaft coupling assembly due to a fatigue fracture of one of its attachment bolts, which resulted in a loss of power to the main rotor. - [NTSB WPR15LA109](https://openairdocs.org/ntsb/WPR15LA109), Feb 19, 2015: Bell/Garlick UH 1H (N166DR), Shelton, WA, substantial damage. Probable cause: The fatigue failure of the engine-to-transmission driveshaft adapter attachment bolt due to the application of inadequate torque on the bolt during assembly. - [NTSB WPR13FA417](https://openairdocs.org/ntsb/WPR13FA417), Sep 21, 2013: Bell UH-1V (N22490), Cordes Lakes, AZ, destroyed, 2 fatal. Probable cause: The pilot's improper maintenance on the helicopter’s main rotor blade pitch control system, which resulted in an in-flight loss of main rotor blade pitch control, mast bumping, and mast failure. - [NTSB CEN13FA415](https://openairdocs.org/ntsb/CEN13FA415), Jul 16, 2013: Bell UH-1H (N775AR), Dove Creek, CO, substantial damage, 1 fatal. Probable cause: Pilot-induced oscillations caused by the loss of hydraulic assist of the flight controls due to an excessive loss of hydraulic fluid during a critical phase of flight, which resulted in ground… - [NTSB WPR13FA006](https://openairdocs.org/ntsb/WPR13FA006), Oct 7, 2012: Garlick Helicopters UH-1H (N1577), Shady Cove, OR, substantial damage. Probable cause: The separation of the tail rotor gearbox and tail rotor assembly as a result of fatigue to the tail rotor gearbox input quill assembly attachment studs. - [NTSB WPR12LA039](https://openairdocs.org/ntsb/WPR12LA039), Nov 15, 2011: Williams Helicopter UH-1H (N502AW), Grand Canyon, AZ, substantial damage. Probable cause: The loss of main rotor power due to a main rotor transmission failure from a lack of lubrication. - [NTSB SEA06WA085](https://openairdocs.org/ntsb/SEA06WA085), Apr 25, 2006: Garlick UH-1H (N126AC), Sarawak, Malaysia, substantial damage - [NTSB DFW05WA254](https://openairdocs.org/ntsb/DFW05WA254), Sep 26, 2005: Bell UH-1H (N3140U), Pisa Flores, Mexico, destroyed, 1 fatal - [NTSB LAX03LA160](https://openairdocs.org/ntsb/LAX03LA160), May 22, 2003: Bell UH-1H (N3280U), Kahoolawe, HI, destroyed, 1 fatal. Probable cause: The pilot's failure to remove the external load cable before the repositioning flight, which resulted in the cable striking the tail rotor in cruise flight. - [NTSB SEA02FA108](https://openairdocs.org/ntsb/SEA02FA108), Jun 21, 2002: Garlick UH-1H (N114DR), Clark Fork, ID, substantial damage, 1 fatal. Probable cause: A failure of unknown origin in the tail rotor drive assembly. Factors include mountainous terrain unsuitable for an emergency landing. - [NTSB SEA01LA121](https://openairdocs.org/ntsb/SEA01LA121), Jun 26, 2001: Kaman HH-43B (N556D), Mullan, ID, substantial damage. Probable cause: The development of multiple fatigue cracks which ultimately resulted in the fracture of the 1st stage gas producer turbine rotor sealing disc. Factors contributing to the accident were… - [NTSB DEN01LA077](https://openairdocs.org/ntsb/DEN01LA077), Mar 25, 2001: Bell UH-1H (N56CF), Zuni, NM, substantial damage. Probable cause: a hard landing due to the pilot's failure to maintain aircraft control during autorotation/flare. A factor was the total loss of engine power due to mechanical failure. - [NTSB DEN99LA160](https://openairdocs.org/ntsb/DEN99LA160), Sep 6, 1999: Bell UH-1H (N4085L), Silverton, CO, substantial damage. Probable cause: The total loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for a forced landing. - [NTSB SEA97LA025](https://openairdocs.org/ntsb/SEA97LA025), Nov 5, 1996: Garlick TH-1L (N465JR), Leavenworth, WA, destroyed, 1 fatal. Probable cause: Fatigue failure of the vertical stabilizer spar cap and subsequent loss of the rotorcraft's vertical stabilizer. Factors include inadequate inspection or trouble-shooting of the aircraft tail cone… - [NTSB SEA96FA076](https://openairdocs.org/ntsb/SEA96FA076), Apr 4, 1996: Bell UH-1H (N6166R), Rainier, WA, substantial damage. Probable cause: failure of the forward power shaft (number 21) bearing. A factor relating to the accident was: the lack of suitable, unobstructed terrain for an emergency landing. - [NTSB LAX95LA030](https://openairdocs.org/ntsb/LAX95LA030), Nov 1, 1994: Bell UH-1E (N5088J), Willits, CA, substantial damage. Probable cause: that the pilot misjudged the distance between the helicopter and the trees. - [NTSB LAX94LA132](https://openairdocs.org/ntsb/LAX94LA132), Feb 23, 1994: Bell TH-1L (N204AP), Etna, CA, substantial damage. Probable cause: THE FAITUGE OF THE GEAR TOOTH WHICH CAUSED THE FAILURE OF THE 42-DEGREE GEAR BOX. - [NTSB BFO90DOA01](https://openairdocs.org/ntsb/BFO90DOA01), Aug 1, 1990: Bell TH-1L (N152RR), Galax, VA, substantial damage. Probable cause: THE LOST OF ENGINE POWER BECAUSE OF A COMPRESSOR STALL. - [NTSB SEA89FA111](https://openairdocs.org/ntsb/SEA89FA111), Jun 14, 1989: Oregon Helicopters UH-1L (N157LC), Baring, WA, destroyed. Probable cause: FATIGUE FAILURE OF THE TAIL ROTOR 42 DEGREE GEAR BOX DUE TO PILOT INDUCED OVERSTRESS. NAVY DATA AND FAA TYPE CERTIFICATE LIMITATIONS WERE NOT ADHERED TO. - [NTSB MIA89LA081](https://openairdocs.org/ntsb/MIA89LA081), Feb 8, 1989: Bell TH-1L (N204AP), Greenville, FL, substantial damage. Probable cause: INSTALLATION OF THE IMPROPER SPRAG CLUTCH ASSEMBLY BY THE OWNERS MAINTENANCE PERSONNEL RESULTING IN FAILURE OF THE SPRAG CLUTCH AND THE LOSS OF TRANSMISSION DRIVE. - [NTSB ATL88FA213](https://openairdocs.org/ntsb/ATL88FA213), Jul 12, 1988: Bell TH-1L (N465JR), Walterboro, SC, substantial damage ## FAA accident and incident reports (32) 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 20230731014299A](https://openairdocs.org/incident/20230731014299A), Jul 31, 2023: Richards Heavylift Helo Inc UH-1H (N567VF), Oakdale, IL, Destroyed, 1 fatal. Pilot was flying a UH-1H helicopter, spraying a cornfield. During a turnaround, the helicopter initiated a climbing left turn but suddenly turned right… - [Accident 20220216001269A](https://openairdocs.org/incident/20220216001269A), Feb 16, 2022: Bell UH-1H (N72297), Coalinga, CA, Destroyed, 1 fatal. On February 15, 2022, at approximately 2130 hours PST, a Bell UH-1H helicopter registered as N72297 impacted terrain under unknown circumstances approximately… - [Accident 20210510023129A](https://openairdocs.org/incident/20210510023129A), May 10, 2021: Richards Heavylift Helo Inc UH-1H (N567VF), Norris City, IL, Substantial damage. On 05/10/2021 at local time 1330 hrs. Outside Norris City,IL [privacy data omitted] a UH-1H ,s/n 65-10016 helicopter during a hot fueling procedure slid off… - [Accident 20190606005969A](https://openairdocs.org/incident/20190606005969A), Jun 6, 2019: Bell UH-1H (N4085L), Bethel, AK, Substantial damage. Aircraft experienced engine failure due to fuel exhaustion. - [Accident 20180724014579A](https://openairdocs.org/incident/20180724014579A), Jul 24, 2018: Bell - Hagglund UH-1H (N107CH), Oakdale, CA, Substantial damage. The accident occurred while repositioning to a new aerial fire fighting assignment for the state fire agency under a cwn contract order. In cruise flight at… - [Incident 20180602006859I](https://openairdocs.org/incident/20180602006859I), Jun 2, 2018: Bell UH-1H (N624HF), Rome, GA, Minor damage. On June 2, 2018 at approximately 4 o?clock pm EST. N624HF a Bell UH-1H operated by army aviation heritage foundation (aahf) was performing a sightseeing flight… - [Accident 20180525005909A](https://openairdocs.org/incident/20180525005909A), May 25, 2018: Bell UH-1H (N111DR), Olympia, WA, Substantial damage. Part 133 chief pilot statement: Pilot requested by maintenance to conduct main rotor track and balance flight. Pilot took off with technician in right… - [Accident 20171013024369A](https://openairdocs.org/incident/20171013024369A), Oct 13, 2017: Williams Helicopter Corp UH-1H (N247PV), Arbuckle, CA, Substantial damage. On October 13, 2017 at approximately 1000 hours, UH1 aircraft N247PV experienced a collective surge while attempting to re-position to a landing cart from the… - [Accident 20150531008009A](https://openairdocs.org/incident/20150531008009A), May 31, 2015: Garlick Helicopters Inc UH-1H (N462CC), Cove, OR, Substantial damage. Aircraft was transporting nine, 24 foot logs when the pilot felt a loud vibration and heard a howling sound coming from the transmission area. The logs were… - [Accident 20150219001229A](https://openairdocs.org/incident/20150219001229A), Feb 19, 2015: Bell UH-1H (N166DR), Shelton, WA, Substantial damage. Pilot reported during lifting a fertilizer bucket the engine made two loud bangs, followed by the low rotor warning horn. The pilot performed an autorotation… - [Accident 20130921020369A](https://openairdocs.org/incident/20130921020369A), Sep 21, 2013: Bell UH-1V (N22490), Cordes Lakes, AZ, Destroyed, 2 fatal. On September 21, 2013, about 1150 mountain standard time, a Bell UH-1V helicopter, N22490, was destroyed when it impacted the ground near Cordes Lakes, Arizona… - [Accident 20130716011829A](https://openairdocs.org/incident/20130716011829A), Jul 16, 2013: Bell UH-1H (N775AR), Dove Creek, CO, Destroyed, 1 fatal. During external-load operations, pilot released the 2000 pound external load followed by a loss of control and subsequent impact with the ground. - [Accident 20121007023129A](https://openairdocs.org/incident/20121007023129A), Oct 7, 2012: Garlick Helicopters Inc UH-1H (N1577), Shady Cove, OR, Substantial damage. Pilot was dispatched to drop water on a fire and was returning to base with a bambi bucket and 150FT line still attached. After a 10 minute flight in cruise,… - [Accident 20111115026789A](https://openairdocs.org/incident/20111115026789A), Nov 15, 2011: Williams Helicopter Corp UH-1H (N502AW), AZ, Substantial damage. The pilot departed valle, AZ (40G) enroute to hualapai hilltop - supai, AZ (approximately 43 miles nw of valle, AZ). The pilot was flying at approximately 500"… - [Incident 20091223053399I](https://openairdocs.org/incident/20091223053399I), Dec 23, 2009: Bell UH-1H (N774EA), Midland, AL, Minor damage. Pilot was hovering at approx. 25 ft AGL when a loss of power was encountered and a hard landing resulted. - [Accident 20030522010859A](https://openairdocs.org/incident/20030522010859A), May 22, 2003: Bell UH1H (N3280U), Kahoolawe, HI, Destroyed, 1 fatal. (-23) The aircraft was destroyed following an in-flight breakup after a 41' external load cable became entangled with the tail rotor over the island of… - [Incident 20020724018829I](https://openairdocs.org/incident/20020724018829I), Jul 24, 2002: Bell UH1H (N111DR), Paisley, OR. (-23) Engine power loss, landed with partial power. - [Accident 20020621015289A](https://openairdocs.org/incident/20020621015289A), Jun 21, 2002: Bell UH1H (N114DR), Clarksfork, ID, No damage, 1 fatal. (-23) On June 21, 2002, at approximately 0515 while engaged in helicopter logging operations, N114DR a garlick UH-1H crashed with fatal injuries to the pilot.… - [Incident 20010830025289I](https://openairdocs.org/incident/20010830025289I), Aug 30, 2001: Bell UH1B (N842M), Gardiner, MT, Minor damage. (-23) While flying fire suppression as public use, pilot heard a few "bam" sounds from engine are. Water had just been released from a sling bucket and pilot,… - [Accident 20010626017969A](https://openairdocs.org/incident/20010626017969A), Jun 26, 2001: Kaman HH43B (N556D), Mullanpass, ID, No damage. (-23) Helicopter was at hover with "long-line" attempting to lift logs. A loud "bang" was hear/felt, the helicopter lost power and began a descent. Pilot… - [Accident 20010325005539A](https://openairdocs.org/incident/20010325005539A), Mar 25, 2001: Bell UH1H (N56CF), Zuni, NM, Substantial damage. (.19) On March 25, 2001, ap approx. 1200 MST, a Bell UH-1H helicopter, N56CF, was substantially daamged when it collided with the terrain during an emergency… - [Accident 19990906046569A](https://openairdocs.org/incident/19990906046569A), Sep 6, 1999: Bell UH1H (N4085L), Silverton, CO, No damage. (-23) Pilot was transporting an external load on the first flight of the day when the ground crew reported fire and smoke coming out the tail pipe of the… - [Accident 19961105034799A](https://openairdocs.org/incident/19961105034799A), Nov 5, 1996: Bell TH1L (N465JR), Leavenworth, WA, Substantial damage, 1 fatal. Helicopter involved in logging operation, lost tail rotor, while picking up a load, crashed. - [Accident 19960404006049A](https://openairdocs.org/incident/19960404006049A), Apr 4, 1996: Bell UH1H (N6166R), Rainier, WA, Substantial damage. Loud bang from engine and smoke. Autorotated into trees. Forward shaft bearing disintegrated. Sb on it not complied - [Incident 19950617020649I](https://openairdocs.org/incident/19950617020649I), Jun 17, 1995: Bell UH1B (N600MA), Lincoln, MT. Lost power during logging operation engine bearings failed due oil starvation. - [Accident 19941031048179A](https://openairdocs.org/incident/19941031048179A), Oct 31, 1994: Bell UH1E (N5088J), Willits, CA, Substantial damage. Dropped log. Began climbout. Tailrotor gear box hit a tree. Autorotated to hard landing. - [Accident 19940223002819A](https://openairdocs.org/incident/19940223002819A), Feb 23, 1994: Bell TH1L (N204AP), Etna, CA, Substantial damage. Vibration after log pickup tried dump load. Lost tail rotor. Uncontrolled spin to impact. 42 degree gear box failed - [Accident 19900801033739A](https://openairdocs.org/incident/19900801033739A), Aug 1, 1990: Bell TH1L (N152RR), Hillsville, VA, Substantial damage. Engine quit while spraying powerline right of way. Autorotated into trees. No cause for power loss in report. - [Accident 19890614015569A](https://openairdocs.org/incident/19890614015569A), Jun 14, 1989: Bell UH1L (N157LC), Baring, WA, Destroyed. Vibration. Dropped load, hovered prior landing. Began right spin autorotated and crashed. Tail rotor gears stripped - [Accident 19890208031229A](https://openairdocs.org/incident/19890208031229A), Feb 8, 1989: Bell TH1L (N204AP), Greenville, FL, Substantial damage. Loud noise,lost RPM. Autorotated into trees. Improper sprag clutch installed,became disengaged from stress and wear - [Incident 19880803039359I](https://openairdocs.org/incident/19880803039359I), Aug 3, 1988: Bell UH1L (N157LC), Skykomish, WA, Substantial damage. Pilot lost control of helicopter when the tail rotor system failed. Found a faulty worn gear in tail rotor gear box - [Accident 19880712026399A](https://openairdocs.org/incident/19880712026399A), Jul 12, 1988: Bell TH13T (N465JR), Walterboro, SC, Substantial damage. Vibration on sling load dropped load spin right to crash. Tail rotor gear box failed. --- 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.