# Bell UH-1H - Type: Aircraft model (FAA registry) - Registry code: 1181407 - Manufacturer (registry): BELL - Model: UH-1H - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Turbo-shaft - Seats: 15 - Weight class: Up to 12,499 lb - Certification: Type certificated - Registered aircraft: 291 - Page: https://openairdocs.org/model/bell-uh-1h Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2024-19-17](https://openairdocs.org/ad/2024-19-17): Rotorcraft flight control · Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N… (STC SR03408CH). Effective Oct 11, 2024 - [AD 2022-20-14](https://openairdocs.org/ad/2022-20-14): Main Rotor Gearbox · Bell Textron 204B, 205A, 205A-1 and 20 more. Effective Dec 27, 2022 - [AD 2022-22-12](https://openairdocs.org/ad/2022-22-12): Nose/Tail Landing Gear Structure/Axle · Replacement crosstubes P/N D212-664 (Dart Aerospace STC SR01298NY). Effective Nov 22, 2022 - [AD 2022-21-11](https://openairdocs.org/ad/2022-21-11): Main rotor blades · Bell Textron 204B, 205A, 205A-1 and 11 more. Effective Nov 16, 2022 - [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022 - [AD 2022-06-05](https://openairdocs.org/ad/2022-06-05): Main Rotor System · WSH HH-1K, TH-1F, TH-1L and 11 more. Effective Mar 16, 2022 - [AD 2021-15-14](https://openairdocs.org/ad/2021-15-14): Rotorcraft Tail Boom · California Department of Forestry UH-1H, UH-1F, TH-1L and 39 more. Effective Aug 30, 2021 - [AD 2014-03-10](https://openairdocs.org/ad/2014-03-10): Tail Rotor Control System · JJASPP Engineering Services UH-1H, UH-1F, TH-1L and 35 more. Effective Mar 26, 2014 - [AD 2013-13-06](https://openairdocs.org/ad/2013-13-06): Main rotor head · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 10, 2013 - [AD 2013-13-14](https://openairdocs.org/ad/2013-13-14): Main Rotor Head · JJASPP Engineering Services UH-1H, UH-1F, TH-1L and 33 more. Effective Jul 24, 2013 - [AD 2012-17-10](https://openairdocs.org/ad/2012-17-10): Main Rotor Blades · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 28, 2012 - [AD 2012-14-12](https://openairdocs.org/ad/2012-14-12): Tail Rotor Blades · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 4, 2012 - [AD 2006-19-05](https://openairdocs.org/ad/2006-19-05): Tail rotor (T/R) slider · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Oct 16, 2006 - [AD 2002-20-01](https://openairdocs.org/ad/2002-20-01): TT strap · Overseas Aircraft Support UH-1H, UH-1F, TH-1L and 34 more. Effective Nov 6, 2002 - [AD 2002-13-51](https://openairdocs.org/ad/2002-13-51): Tail Rotor (T/R) Grip · Overseas Aircraft Support UH-1H, UH-1F, TH-1L and 34 more. Effective Aug 19, 2002 - [AD 2002-01-31](https://openairdocs.org/ad/2002-01-31): Retirement Index Number (RIN) for Masts · Overseas Aircraft Support UH-1H, UH-1F, TH-1L and 36 more. Effective Mar 8, 2002 - [AD 2000-15-21 R1](https://openairdocs.org/ad/2000-15-21-R1): Main Rotor Mast Assemblies · Overseas Aircraft Support UH-1H, UH-1F, TH-1L and 33 more. Effective Nov 22, 2000 - [AD 99-25-12](https://openairdocs.org/ad/99-25-12): Tailboom Vertical Fin Spar · California Department of Forestry UH-1H, UH-1F, TH-1L and 31 more. Effective Jan 11, 2000 - [AD 99-07-15](https://openairdocs.org/ad/99-07-15): Tail Rotor Yoke · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 33 more. Effective May 3, 1999 - [AD 97-01-06](https://openairdocs.org/ad/97-01-06): Tail Rotor Slider · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 32 more. Effective Feb 13, 1997 - [AD 96-12-26](https://openairdocs.org/ad/96-12-26): Clean and Inspect Tail Rotor Blade · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 23, 1996 - [AD 95-10-08](https://openairdocs.org/ad/95-10-08): Tail Rotor Control System · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 34 more. Effective May 26, 1995 - [AD 94-22-09](https://openairdocs.org/ad/94-22-09): Tail Rotor Driveshaft · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 34 more. Effective Nov 22, 1994 - [AD 92-23-01](https://openairdocs.org/ad/92-23-01): Main Rotor Pillow Blocks · Bell Helicopter Textron 204B, 205A, 205A-1 and 10 more. Effective Apr 23, 1993 - [AD 90-03-10](https://openairdocs.org/ad/90-03-10): Tail Rotor Grips · Arrow Falcon Exporters UH-1H, UH-1F, 204B and 33 more. Effective Oct 18, 1991 - [AD 90-10-05](https://openairdocs.org/ad/90-10-05): Tail Rotor Gearbox · Bell Helicopter Textron TH-1L, UH-1E, UH-1L and 17 more. Effective Jun 5, 1990 Historical (superseded or no longer in force): - [AD 2021-15-52](https://openairdocs.org/ad/2021-15-52) (historical): Main Rotor System · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 39 more. Effective Aug 13, 2021 - [AD 80-17-09](https://openairdocs.org/ad/80-17-09) (historical): Main Rotor Straps · Bell Helicopter Textron 204B, 205A-1, 212 and 16 more. Effective Sep 15, 1980 ## Information bulletins (advisory) (3) - [SAIB SW-18-29R1](https://openairdocs.org/saib/SW-18-29R1): Rotorcraft Tail Boom, Attach Structure Failure. Issued Feb 19, 2019 - [SAIB SW-18-29](https://openairdocs.org/saib/SW-18-29) (historical): Rotorcraft Tail Boom, Attach Structure Failure. Issued Oct 1, 2018 - [SAIB SW-12-38](https://openairdocs.org/saib/SW-12-38): Emergency Push Out Window Retention. Issued Jul 30, 2012 ## Registered aircraft (291, first 50) - [N10432](https://openairdocs.org/aircraft/N10432): [Huey 197 LLC](https://openairdocs.org/faa-owner/HUEY%20197%20LLC), [Argyle, TX](https://openairdocs.org/faa-place/TX/Argyle), built 1968, S/N 68-16197 - [N1044Q](https://openairdocs.org/aircraft/N1044Q): [Reynolds Darryl G](https://openairdocs.org/faa-owner/REYNOLDS%20DARRYL%20G), [Wills Point, TX](https://openairdocs.org/faa-place/TX/Wills%20Point), S/N 66-17100 - [N104HF](https://openairdocs.org/aircraft/N104HF): [Army Aviation Heritage Foundation](https://openairdocs.org/faa-owner/ARMY%20AVIATION%20HERITAGE%20FOUNDATION), [Hampton, GA](https://openairdocs.org/faa-place/GA/Hampton), built 1968, S/N 68-16104 - [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 - [N107NJ](https://openairdocs.org/aircraft/N107NJ): [Usda Forest Service](https://openairdocs.org/faa-owner/USDA%20FOREST%20SERVICE), [Trenton, NJ](https://openairdocs.org/faa-place/NJ/Trenton), S/N 13682 - [N1081C](https://openairdocs.org/aircraft/N1081C): [Celebrate Freedom Foundation Inc](https://openairdocs.org/faa-owner/CELEBRATE%20FREEDOM%20FOUNDATION%20INC), [West Columbia, SC](https://openairdocs.org/faa-place/SC/West%20Columbia), built 1973, S/N 73-21685 - [N10RF](https://openairdocs.org/aircraft/N10RF): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1973, S/N 73-21715 - [N10WU](https://openairdocs.org/aircraft/N10WU): [Bell Textron Inc](https://openairdocs.org/faa-owner/BELL%20TEXTRON%20INC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), S/N 7120010 - [N110NW](https://openairdocs.org/aircraft/N110NW): [Cbft LLC](https://openairdocs.org/faa-owner/CBFT%20LLC), [Mobile, AL](https://openairdocs.org/faa-place/AL/Mobile), built 1966, S/N 66-16198 - [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 - [N111UD](https://openairdocs.org/aircraft/N111UD): [Drive A Tank Inc](https://openairdocs.org/faa-owner/DRIVE%20A%20TANK%20INC), [Kasota, MN](https://openairdocs.org/faa-place/MN/Kasota), S/N 70-16357 - [N113FD](https://openairdocs.org/aircraft/N113FD): [Sacramento Metropolitan Fire District](https://openairdocs.org/faa-owner/SACRAMENTO%20METROPOLITAN%20FIRE%20DISTRICT), [Mather, CA](https://openairdocs.org/faa-place/CA/Mather), S/N 70-16370 - [N1145Q](https://openairdocs.org/aircraft/N1145Q): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1966, S/N 66-16355 - [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 - [N114FD](https://openairdocs.org/aircraft/N114FD): [Sacramento Metropolitan Fire District](https://openairdocs.org/faa-owner/SACRAMENTO%20METROPOLITAN%20FIRE%20DISTRICT), [Mather, CA](https://openairdocs.org/faa-place/CA/Mather), S/N 72-21558 - [N115FD](https://openairdocs.org/aircraft/N115FD): [Sacramento Metropolitan Fire District](https://openairdocs.org/faa-owner/SACRAMENTO%20METROPOLITAN%20FIRE%20DISTRICT), [Mather, CA](https://openairdocs.org/faa-place/CA/Mather), S/N 74-22330 - [N117DR](https://openairdocs.org/aircraft/N117DR): [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 65-12871 - [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 - [N120FC](https://openairdocs.org/aircraft/N120FC): [Usda Forest Service Fepp](https://openairdocs.org/faa-owner/USDA%20FOREST%20SERVICE%20FEPP), [Tallahassee, FL](https://openairdocs.org/faa-place/FL/Tallahassee), S/N 70-16260 - [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 - [N121PT](https://openairdocs.org/aircraft/N121PT): [Lrh Equipment LLC](https://openairdocs.org/faa-owner/LRH%20EQUIPMENT%20LLC), [Pendleton, OR](https://openairdocs.org/faa-place/OR/Pendleton), built 1964, S/N 64-13711 - [N124FC](https://openairdocs.org/aircraft/N124FC): [Usda Forest Service Fepp](https://openairdocs.org/faa-owner/USDA%20FOREST%20SERVICE%20FEPP), [Tallahassee, FL](https://openairdocs.org/faa-place/FL/Tallahassee), S/N 64-13750 - [N124PT](https://openairdocs.org/aircraft/N124PT): [Bonners Ferry, ID](https://openairdocs.org/faa-place/ID/Bonners%20Ferry), S/N 63-08817, Registration pending - [N128FC](https://openairdocs.org/aircraft/N128FC): [Allied Response Inc](https://openairdocs.org/faa-owner/ALLIED%20RESPONSE%20INC), [Copperas Cove, TX](https://openairdocs.org/faa-place/TX/Copperas%20Cove), S/N 69-15848 - [N129SP](https://openairdocs.org/aircraft/N129SP): [New York State Police](https://openairdocs.org/faa-owner/NEW%20YORK%20STATE%20POLICE), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany), S/N 70-16205 - [N133](https://openairdocs.org/aircraft/N133): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1966, S/N 65-09847 - [N1363W](https://openairdocs.org/aircraft/N1363W): [Withrotor Aviation Inc](https://openairdocs.org/faa-owner/WITHROTOR%20AVIATION%20INC), [Lakeview, OR](https://openairdocs.org/faa-place/OR/Lakeview), built 1966, S/N 66-16854 - [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 - [N14SD](https://openairdocs.org/aircraft/N14SD): [Lake County Sheriffs Office](https://openairdocs.org/faa-owner/LAKE%20COUNTY%20SHERIFFS%20OFFICE), [Tavares, FL](https://openairdocs.org/faa-place/FL/Tavares), built 1962, S/N 62-12369 - [N16315](https://openairdocs.org/aircraft/N16315): [Army Aviation Heritage Foundation And Flg Museum](https://openairdocs.org/faa-owner/ARMY%20AVIATION%20HERITAGE%20FOUNDATION%20AND%20FLG%20MUSEUM), [Hampton, GA](https://openairdocs.org/faa-place/GA/Hampton), built 1971, S/N 70-16315 - [N16493](https://openairdocs.org/aircraft/N16493): [Astre Air International](https://openairdocs.org/faa-owner/ASTRE%20AIR%20INTERNATIONAL), [Watkins, CO](https://openairdocs.org/faa-place/CO/Watkins), S/N 66-16493 - [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 - [N174SP](https://openairdocs.org/aircraft/N174SP): [New York State Police](https://openairdocs.org/faa-owner/NEW%20YORK%20STATE%20POLICE), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany), S/N 63-12997 - [N186SD](https://openairdocs.org/aircraft/N186SD): [Orange County Sheriffs Dept](https://openairdocs.org/faa-owner/ORANGE%20COUNTY%20SHERIFFS%20DEPT), [Costa Mesa, CA](https://openairdocs.org/faa-place/CA/Costa%20Mesa), S/N 74-22540 - [N19CF](https://openairdocs.org/aircraft/N19CF): [Powers Michael](https://openairdocs.org/faa-owner/POWERS%20MICHAEL), [Granbury, TX](https://openairdocs.org/faa-place/TX/Granbury), S/N 66-01145 - [N19SP](https://openairdocs.org/aircraft/N19SP): [New York State Police](https://openairdocs.org/faa-owner/NEW%20YORK%20STATE%20POLICE), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany), S/N 64-13666 - [N20446](https://openairdocs.org/aircraft/N20446): [Agriforrestal Applications Inc](https://openairdocs.org/faa-owner/AGRIFORRESTAL%20APPLICATIONS%20INC), [Arcadia, FL](https://openairdocs.org/faa-place/FL/Arcadia), built 1963, S/N 63-8770 - [N2048P](https://openairdocs.org/aircraft/N2048P): [Northwest Helicopters LLC](https://openairdocs.org/faa-owner/NORTHWEST%20HELICOPTERS%20LLC), [Olympia, WA](https://openairdocs.org/faa-place/WA/Olympia), S/N 65-9602 - [N204BM](https://openairdocs.org/aircraft/N204BM): [Toucan Helicopter Co Ltd](https://openairdocs.org/faa-owner/TOUCAN%20HELICOPTER%20CO%20LTD), [Fayetteville, GA](https://openairdocs.org/faa-place/GA/Fayetteville), S/N 68-15683 - [N2055V](https://openairdocs.org/aircraft/N2055V): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1966, S/N 66-1023 - [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 - [N205FU](https://openairdocs.org/aircraft/N205FU): [Air 1 LLC](https://openairdocs.org/faa-owner/AIR%201%20LLC), [Newark, DE](https://openairdocs.org/faa-place/DE/Newark), built 1970, S/N 70-16416 - [N205FW](https://openairdocs.org/aircraft/N205FW): [Pasco Sheriffs Office](https://openairdocs.org/faa-owner/PASCO%20SHERIFFS%20OFFICE), [New Port Richey, FL](https://openairdocs.org/faa-place/FL/New%20Port%20Richey), S/N 69-15585 - [N205KP](https://openairdocs.org/aircraft/N205KP): [Schaper Monte E](https://openairdocs.org/faa-owner/SCHAPER%20MONTE%20E), [Terra Bella, CA](https://openairdocs.org/faa-place/CA/Terra%20Bella), S/N 62-02108 - [N205KS](https://openairdocs.org/aircraft/N205KS): [Usda Forest Service Fepp](https://openairdocs.org/faa-owner/USDA%20FOREST%20SERVICE%20FEPP), [Santa Barbara, CA](https://openairdocs.org/faa-place/CA/Santa%20Barbara), S/N 9526 - [N205LE](https://openairdocs.org/aircraft/N205LE): [Collier County Sheriffs Office](https://openairdocs.org/faa-owner/COLLIER%20COUNTY%20SHERIFFS%20OFFICE), [Naples, FL](https://openairdocs.org/faa-place/FL/Naples), S/N 69-15533 - [N207SD](https://openairdocs.org/aircraft/N207SD): [U S Dept Of State Inl/A](https://openairdocs.org/faa-owner/U%20S%20DEPT%20OF%20STATE%20INL%2FA), [Melbourne, FL](https://openairdocs.org/faa-place/FL/Melbourne), S/N 74-22359 - [N216WC](https://openairdocs.org/aircraft/N216WC): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), S/N 7016216 - [N221HF](https://openairdocs.org/aircraft/N221HF): [Army Aviation Heritage Foundation Inc](https://openairdocs.org/faa-owner/ARMY%20AVIATION%20HERITAGE%20FOUNDATION%20INC), [Hampton, GA](https://openairdocs.org/faa-place/GA/Hampton), S/N 70-16221 - [N2220F](https://openairdocs.org/aircraft/N2220F): [American Huey 369 Inc](https://openairdocs.org/faa-owner/AMERICAN%20HUEY%20369%20INC), [Peru, IN](https://openairdocs.org/faa-place/IN/Peru), S/N 63-12959 All 291: https://openairdocs.org/model/bell-uh-1h/aircraft.md ## NTSB investigations (49) 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 ERA26LA193](https://openairdocs.org/ntsb/ERA26LA193), Apr 4, 2026: Bell UH1 (N75140), Enterprise, AL, substantial damage. Probable cause: The in-flight separation of a turn lock fastener stud, which resulted in substantial damage to one tail rotor blade. - [NTSB WPR24LA030](https://openairdocs.org/ntsb/WPR24LA030), Nov 4, 2023: Arrow Falcon Exporters UH-1H (N3053Q), Firebaugh, CA, substantial damage. Probable cause: An on-ground fuel fire for reasons that could not be determined due to extensive thermal damage. - [NTSB CEN23LA295](https://openairdocs.org/ntsb/CEN23LA295), Jul 11, 2023: Bell UH-1H (N900VF), Woodlawn, IL, substantial damage. Probable cause: The separation of the tail boom from the fuselage for reasons that could not be determined. - [NTSB CEN22FA317](https://openairdocs.org/ntsb/CEN22FA317), Jul 17, 2022: Bell UH-1H (N911SZ), Chapelle, NM, destroyed, 4 fatal. Probable cause: 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… - [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 WPR21LA236](https://openairdocs.org/ntsb/WPR21LA236), Jun 15, 2021: Bell UH-1H (N398M), Townsend, MT, destroyed. Probable cause: The pilot’s failure to maintain helicopter control after an encounter with settling with power during approach at an altitude that was too low for recovery, which resulted in a hard landing. - [NTSB WPR20LA280](https://openairdocs.org/ntsb/WPR20LA280), Aug 19, 2020: Arrow-Falcon Exporters UH-1H (N711GH), Coalinga, CA, destroyed, 1 fatal. Probable cause: The pilot’s inability to maintain control of the helicopter due to a hydraulic system failure for reasons that could not be fully determined due to the thermal destruction from the postimpact fire. - [NTSB WPR20LA211](https://openairdocs.org/ntsb/WPR20LA211), Jul 7, 2020: Bell UH1H (N623PB), Payson, AZ, destroyed, 1 fatal. Probable cause: A flight control malfunction due to either a hydraulic hardover or a flight control stiffness event, which resulted in a loss of control. - [NTSB WPR20LA130](https://openairdocs.org/ntsb/WPR20LA130), Apr 24, 2020: Bell UH 1H (N3276T), Mesa, AZ, substantial damage, 1 fatal. Probable cause: An in-flight separation of the tail rotor gearbox from the airframe due to fatigue failure of the gearbox attachment studs, resulting in a loss of directional control and subsequent ground impact.… - [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 CEN18FA078](https://openairdocs.org/ntsb/CEN18FA078), Jan 18, 2018: Bell UH-1H (N658H), Raton, NM, destroyed, 5 fatal. Probable cause: The pilot's failure to maintain adequate altitude above mountainous terrain during cruise flight in dark night conditions, which resulted in controlled flight into terrain. - [NTSB GAA18CA107](https://openairdocs.org/ntsb/GAA18CA107), Jan 12, 2018: Bell UH 1H (N205KS), Van Nuys, CA, substantial damage. Probable cause: The pilot’s failure to maintain clearance from a stationary helicopter during landing. Contributing to the accident was the ground crew’s failure to ensure that the helicopter would clear the… - [NTSB WPR17LA002](https://openairdocs.org/ntsb/WPR17LA002), Oct 5, 2016: Tamarack Helicopters UH-1H (N175SF), Gila Bend, AZ, substantial damage. Probable cause: The separation of the 90° tail rotor gearbox assembly as a result of fatigue to the tail rotor gearbox input quill assembly attachment studs due to the helicopter experiencing highly repetitive… - [NTSB WPR16LA142](https://openairdocs.org/ntsb/WPR16LA142), Jul 17, 2016: Bell UH 1H (N790RJ), Mt. Adams, WA, substantial damage. Probable cause: The pilot’s failure to maintain yaw control as he slowed the helicopter during a landing approach, which resulted in the loss of helicopter control due to the loss of tail rotor effectiveness. - [NTSB WPR15LA219](https://openairdocs.org/ntsb/WPR15LA219), Jul 21, 2015: Garlick UH1H (N121PT), Walla Walla, WA, destroyed. Probable cause: The helicopter’s reduction in aerodynamic lift while operating in variable wind conditions for reasons that could not be determined because postaccident examination did not reveal any evidence of… - [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 CEN15TA035](https://openairdocs.org/ntsb/CEN15TA035), Oct 23, 2014: Bell UH1H (N72595), San Isidro, TX, substantial damage. Probable cause: The flight crew's failure to ensure that the sliding cabin door was properly secured before the flight. - [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 WPR10TA318](https://openairdocs.org/ntsb/WPR10TA318), Jun 24, 2010: Bell UH-1H (N205KS), Santa Barbara, CA, substantial damage. Probable cause: The failure of left tailboom upper attachment fitting as a result of fatigue. - [NTSB LAX08LA230](https://openairdocs.org/ntsb/LAX08LA230), Jul 15, 2008: Bell UH-1H (N3276T), Rock Springs, WY, substantial damage. Probable cause: A total loss of engine power due to the failure of the No. 1 bearing for undetermined reasons. - [NTSB SEA07TA202](https://openairdocs.org/ntsb/SEA07TA202), Jul 16, 2007: Bell UH-1H (N667HP), Benchmark, MT, substantial damage. Probable cause: Dense smoke/haze which restricted the pilot's visibility and the pilot's failure to maintain aircraft control during the emergency descent resulting in impact with terrain. - [NTSB DEN07LA024](https://openairdocs.org/ntsb/DEN07LA024), Nov 13, 2006: Bell UH-1H (N24CF), Melrose, NM, substantial damage. Probable cause: the in-flight failure and separation of both tail rotor blades. Contributing factors in this accident were the check pilot interferring with the controls and his failure to relinquish control to the… - [NTSB DFW05WA254](https://openairdocs.org/ntsb/DFW05WA254), Sep 26, 2005: Bell UH-1H (N3140U), Pisa Flores, Mexico, destroyed, 1 fatal - [NTSB ATL05LA035](https://openairdocs.org/ntsb/ATL05LA035), Dec 16, 2004: Bell UH-1H (N51AG), Rockford, AL, substantial damage. Probable cause: The pilot's failure to maintain adequate obstacle clearance, which resulted in an in-flight collision with a tree. - [NTSB ATL04TA142](https://openairdocs.org/ntsb/ATL04TA142), Jul 1, 2004: Bell UH-1H (N128FC), Childs, FL, substantial damage. Probable cause: The vehicle driver's inadequate visual lookout and his failure to maintain clearance. A factor was the lack of company standards and operation procedures. - [NTSB LAX04TA018](https://openairdocs.org/ntsb/LAX04TA018), Oct 15, 2003: Bell UH-1H (N114FD), Sacramento, CA, substantial damage. Probable cause: The loss of engine power due to the fatigue failure of a planetary reduction gear. - [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 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 SEA01LA046](https://openairdocs.org/ntsb/SEA01LA046), Feb 7, 2001: Western International UH-1H (N205GL), Darby, MT, substantial damage, 1 fatal. Probable cause: Inflight loss of a tail rotor pitch change link-to-blade grip attach bolt, resulting partial loss of tail rotor control, and subsequent entanglement of the helicopter's external load cable with a… - [NTSB MIA00GA264](https://openairdocs.org/ntsb/MIA00GA264), Sep 7, 2000: Bell UH-1H (N525BM), Waynesville, NC, destroyed, 2 fatal. Probable cause: An in-flight encounter with ground level fog due to the pilot's decision to continue VMC flight into instrument conditions, resulting in an in-flight collision with trees. - [NTSB MIA00GA184](https://openairdocs.org/ntsb/MIA00GA184), Jun 4, 2000: Bell UH-1H (N127FC), Fort Myers, FL, destroyed, 1 fatal. Probable cause: the pilot's failure to maintain control of the helicopter for undetermined reasons. Factors in this accident were self-induced pressure and fatigue due to lack of sleep and rest. - [NTSB NYC00FA136](https://openairdocs.org/ntsb/NYC00FA136), May 16, 2000: Bell UH-1H (N52AG), Frenchville, PA, substantial damage, 1 fatal. Probable cause: Foreign object damage to the compressor and turbine sections of the engine, which resulted in a loss of power. - [NTSB MIA00TA070](https://openairdocs.org/ntsb/MIA00TA070), Jan 20, 2000: Bell UH-1H (N853M), Fort Myers, FL, substantial damage. Probable cause: A total loss of engine power due to turbine wheel fracture resulting from fatigue for undetermined reasons that resulted in an autorotation to unsuitable terrain and hard touchdown and rollover. - [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 LAX99LA108](https://openairdocs.org/ntsb/LAX99LA108), Feb 21, 1999: Bell UH-1H (N6258Z), Glenn, CA, destroyed, 1 fatal. Probable cause: An inflight loss of control for undetermined reasons. - [NTSB LAX99FA057](https://openairdocs.org/ntsb/LAX99FA057), Dec 23, 1998: Bell UH-1H (N4590), Quincy, CA, destroyed, 1 fatal. Probable cause: An inaccurate exhaust gas temperature gauge, that allowed the engine to be run over-temperature unknowingly by the pilot, which resulted in the subsequent failure of the turbine sections. Also causal… - [NTSB SEA99LA020](https://openairdocs.org/ntsb/SEA99LA020), Dec 14, 1998: Garlick UH-1H (N94NW), Darrington, WA, substantial damage. Probable cause: The total separation of the vertical fin (stabilizer), as the result of fatigue cracks which initiated in the fourth rivet hole above where the fin extends from the tailboom. - [NTSB SEA98FA104](https://openairdocs.org/ntsb/SEA98FA104), Jun 18, 1998: Garlick UH-1H (N869W), Couer D'Alene, ID, substantial damage. Probable cause: Fatigue failure of a reduction drive planetary gear. Factors include an unapproved part and plating process, and uneven terrain at the emergency landing site. - [NTSB MIA98GA069](https://openairdocs.org/ntsb/MIA98GA069), Feb 3, 1998: Bell UH-1H (N30TV), Savannah, TN, destroyed, 4 fatal. Probable cause: failure of the flight crew to maintain sufficient altitude/clearance from the pole and workman. Related factors were: the gusty wind condition, inadequate communication/coordination between the… - [NTSB LAX97TA289](https://openairdocs.org/ntsb/LAX97TA289), Aug 15, 1997: Bell UH-1H (N205DF), Tahoe City, CA, substantial damage. Probable cause: The pilot's decision to attempt a takeoff in environmental conditions which exceeded the helicopter's performance capability, and his improper use of the collective, which caused a decay of the main… - [NTSB FTW96LA380](https://openairdocs.org/ntsb/FTW96LA380), Sep 10, 1996: Bell UH-1H (N23Y), Leadville, CO, substantial damage. Probable cause: The pilot's improper inflight planning/decision in that he used an inadequate airspeed or an inadequate altitude, or both, for the intentional autorotation. - [NTSB SEA96FA187](https://openairdocs.org/ntsb/SEA96FA187), Aug 12, 1996: Garlick UH-1H (N97NW), Coeur D'Alene, ID, substantial damage. Probable cause: Fatigue fracture of the left forward vertical stabilizer spar, resulting in loss of the vertical stabilizer and tail rotor and subsequent loss of control. A factor was insufficient applicability (by… - [NTSB LAX96TA298](https://openairdocs.org/ntsb/LAX96TA298), Aug 7, 1996: Bell UH-1H (N499DF), Ukiah, CA, substantial damage. Probable cause: the commercial/student pilot's improper/abrupt use of aft cyclic during the flare, and the instructor's inadequate supervision of the flight. - [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 ATL95LA160](https://openairdocs.org/ntsb/ATL95LA160), Aug 7, 1995: Bell UH-1H (N794CF), Montgomery, AL, substantial damage. Probable cause: the pilot's failure to maintain clearance from the trees. - [NTSB SEA92TL#03](https://openairdocs.org/ntsb/SEA92TL%2303), Oct 24, 1991: Bell 206L-3 (N911KP), Kent, WA, substantial damage ## FAA accident and incident reports (59, 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. - [Incident 20251106017539I](https://openairdocs.org/incident/20251106017539I), Nov 6, 2025: Bell UH-1H (N959BH), Nome, AK, Minor damage. On November 6, 2025, N959BH flew from unalakleet to Nome, Alaska. The PIC idnetified damage to one of the tail rotor blades during the post flight walkaround.… - [Accident 20231104021059A](https://openairdocs.org/incident/20231104021059A), Nov 4, 2023: Bell UH-1H (N3053Q), Firebaugh, CA, Destroyed. On November 4, 2023, [privacy data omitted] a Bell UH-1H helicopter caught fire during the startup of a maintenance check. During the engine startup, it was… - [Accident 20230711010509A](https://openairdocs.org/incident/20230711010509A), Jul 11, 2023: Bell UH-1H (N900VF), Woodlawn, IL, Substantial damage. The aircraft was located in a farm field north east of Woodlawn IL. The lat/long of the accident scene is 38 degree 19 minutes 58 seconds north by 89 degrees… - [Accident 20220716012979A](https://openairdocs.org/incident/20220716012979A), Jul 16, 2022: Bell UH-1H (N911SZ), Bernal, NM, Destroyed, 4 fatal. A public use helicopter, after refueling and departing las vegas, NM airport (lvs), with no flight plan filed, in cruise flight, experienced an apparent… - [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 20210615007759A](https://openairdocs.org/incident/20210615007759A), Jun 15, 2021: Bell UH-1H (N398M), Townsend, MT, Destroyed. On June 15, 2021 at approximately 1700 mountain daylight time, a Bell UH1H helicopter, N398M had a hard landing, roll over and post crash fire on an access… - [Accident 20200819012939A](https://openairdocs.org/incident/20200819012939A), Aug 19, 2020: Bell UH-1H (N711GH), Coalinga, CA, Destroyed, 1 fatal. On Wednesday, August 19, 2019, at 1015 PDT, a Bell UH-1H operated by Guardian helicopters, inc. was performing firefighting activities and working an active… - [Accident 20200707011479A](https://openairdocs.org/incident/20200707011479A), Jul 7, 2020: Bell UH-1H (N623PB), Payson, AZ, Destroyed, 1 fatal. On Tuesday, July 7, 2020 at approximately 1216 MST, a UH-1H helicopter, N623PB, impacted terrain with one occupant on board. The aircraft was performing… - [Accident 20200424002569A](https://openairdocs.org/incident/20200424002569A), Apr 24, 2020: Bell UH-1H (N3276T), Mesa, AZ, Destroyed, 1 fatal. While enroute from blythe, CA, N3276T (a UH1) was over Mesa AZ approximately 7 miles southwest from falcon field (ffz) when it experienced a loss of the tail… - [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… - [Incident 20180509010719I](https://openairdocs.org/incident/20180509010719I), May 9, 2018: Bell UH-1H (N777SF), Minden, NV, Substantial damage. Aircract completed cyclic rigging maintenance. Aircraft was conducting post maintenace test flight. Aircraft experienced loss of tail rotor control. Pilot… - [Accident 20180117006579A](https://openairdocs.org/incident/20180117006579A), Jan 17, 2018: Bell UH-1H (N658H), Raton, NM, Substantial damage, 5 fatal. On January 18, 2018, at 1800 MST, a Bell UH-1H, N658H, flying to a private ranch on the new Mexico - Colorado border impacted the top of a mesa while on a… - [Accident 20180112006529A](https://openairdocs.org/incident/20180112006529A), Jan 12, 2018: Bell UH-1H (N205KS), Van Nuys, CA, Substantial damage. Airman was landing on a square helicopter landing zone at the rsi private ramp on the west side of Van Nuys airport. He was approaching facing west and thought… - [Incident 20170615013299I](https://openairdocs.org/incident/20170615013299I), Jun 15, 2017: Bell UH-1H (N72594), Mcallen, TX, No damage. Engine LE-16761Z (T53-L-703) experienced a 1st compressor blade failure causing extreme compressor damage and immediate power loss. Pilot initiated an… - [Accident 20161005017789A](https://openairdocs.org/incident/20161005017789A), Oct 5, 2016: Bell UH-1H (N175SF), Gila Bend, AZ, Substantial damage. On the morning of 5 October 2016, the pilot performed a preflight inspection in accordance to with the manual on rotorcraft N175SF. The pilot found no… - [Accident 20160717020149A](https://openairdocs.org/incident/20160717020149A), Jul 17, 2016: Bell UH1-H (N790RJ), Yakima, WA, Substantial damage. N790RJ, a 1970 UH1-H helicoper operated by the king county sheriff department received substantial damage after contacting the ground on the side of Mt. Adams… - [Accident 20150720011009A](https://openairdocs.org/incident/20150720011009A), Jul 20, 2015: Bell UH-1H (N121PT), Walla Walla, WA, Destroyed. Pilot reported rotor RPM decay while hovering to pick up water from a stream for firefighting. No master caution or other warnings were given. Engine RPM was… - [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… - [Incident 20141023021459I](https://openairdocs.org/incident/20141023021459I), Oct 23, 2014: Bell UH-1H (N72595), Rio Grande, TX, Minor damage. On oct. 23, 2014, a huey UH-1 helicopter lost its left cabin door in flight. According to james mills, air safety program manager for the office of air and… - [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. - [Incident 20110518010289I](https://openairdocs.org/incident/20110518010289I), May 18, 2011: Bell UH-1H (N341WN), Ellensburg, WA, Minor damage. During a flight utilizing a 75 foot long line and a bambi bucket, the commercially rated solo pilot decended into the trees damaging both main rotor blades.… - [Accident 20100624037929A](https://openairdocs.org/incident/20100624037929A), Jun 24, 2010: Bell UH-1H (N205KS), Lake Cachuma, CA, Minor damage. On 06/24/2010 santa barbara county fire, while conducting cliff rescue training, a brief loud noise was heard and the aircraft yawed to the right. A… - [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 20080715841499A](https://openairdocs.org/incident/20080715841499A), Jul 15, 2008: Bell UH1H (N3276T), Rock Springs, WY, Substantial damage. (-23) The restricted catagory helicopter engine failed while operating under part 133. A 1,700 pound external load, on a 100 foot line, was atttached to the… - [Accident 20070716012619A](https://openairdocs.org/incident/20070716012619A), Jul 16, 2007: Bell UH1H (N667HP), Benchmark, MT, Substantial damage. (-23) Pilot was attempting to sling load fire fighting equipment out of a remote heli-site in a burned area. The heli-site had been unapproachable for several… - [Accident 20061113024169A](https://openairdocs.org/incident/20061113024169A), Nov 13, 2006: Bell UH1H (N24CF), Melrose, NM, Substantial damage. (-23) On 11/13/2006, at approximately 1115 MST, during cruise flight on a VFR cross country flight from fort lauderdale, Florida, to albuquerque, new Mexico,… - [Incident 20060314005899I](https://openairdocs.org/incident/20060314005899I), Mar 14, 2006: Bell UH1H (N850M), St. James City, FL, Minor damage. (-23) Flight departed buckingham field at approximately 0900 hours. First flight of day to build time and practice landings on helipads. Flying pilot landed in… - [Accident 20041215033109A](https://openairdocs.org/incident/20041215033109A), Dec 15, 2004: Bell UH1H (N51AG), Rockford, AL, Substantial damage. (-23) While performing aerial applications over timber land, pilot reported a loud "bang" and loss of tail rotor effectiveness at the apex of the spray turn.… - [Accident 20040630032699A](https://openairdocs.org/incident/20040630032699A), Jun 30, 2004: Bell UH1H (N128FC), Ft Myers, FL, Substantial damage. (-23) On June 30, 2004 during a hot refuel of a helicopter (forestry 28) the left rear corner of the aviation mechanics truck (ACS11176) and the left side of a… - [Accident 20031015026939A](https://openairdocs.org/incident/20031015026939A), Oct 15, 2003: Bell UH1H (N114FD), Sacramento, CA, Minor damage. (-23) Pilot stated that during a repositioning flight from rancho murieta airport (riu) to mccellan airpark (mcc) he was requested by Mather field (mhr) tower… - [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.… - [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 20010207001069A](https://openairdocs.org/incident/20010207001069A), Feb 7, 2001: Bell UH1H (N205GL), Darby, MT, No damage, 1 fatal. (-23) Re box 21A "other" tail rotor failure suspected. To be confirmed by NTSB teardown analysis. 1. Upon landing with a load of logs on a long line, the pilot… - [Accident 20000907036229A](https://openairdocs.org/incident/20000907036229A), Sep 7, 2000: Bell UH1H (N525BM), Waynesville, NC, No damage, 2 fatal. (-23)September 7, 2000 Bell helicopter, N52BM, crashed about 0905 EST in mountainous terrain near Waynesville, north carolina. The UH-1H helicopter registered… - [Incident 20000727035509I](https://openairdocs.org/incident/20000727035509I), Jul 27, 2000: Bell UH1H (N398M), Philipsburg, MT. (-23)The pilot stated, in flight the aircraft lost hydraulics. The pilot landed at Philipsburg, Montana - the nearest available airport. Fluid and leaked out… - [Accident 20000604004749A](https://openairdocs.org/incident/20000604004749A), Jun 4, 2000: Bell UH1H (N127FC), Ft. Myers, FL, Destroyed, 1 fatal. (-23) On June 4, 2000, at 1040EST a Bell UH-1H helicopter, N-127FC, registered to the Florida forrestry division, collided with the ground while conducting… - [Accident 20000516043669A](https://openairdocs.org/incident/20000516043669A), May 16, 2000: Bell UH1H (N52AG), Frenchville, PA, Destroyed, 1 fatal. (-23) The following narrative was developed through the cooperation and on site investigation of personnel from the allegheny flight standards district office… - [Accident 20000120008039A](https://openairdocs.org/incident/20000120008039A), Jan 20, 2000: Bell UH1H (N853M), Ft Meyers, FL, Substantial damage. (-23) An inspection of the wreck concluded that the engine had failed. The engine has been sent back to the manufacturer for analysis. Honeywell rep. Dave… - [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 19990221001669A](https://openairdocs.org/incident/19990221001669A), Feb 21, 1999: Bell UH1H (N6258Z), Glenn, CA, Destroyed, 1 fatal. 1968 Bell UH-1H helicopter crashed under unknown circumstances during aerial application. (-23) on February 21, 1999, around 1510 hours PST, a Bell UH-1H… - [Accident 19981223041899A](https://openairdocs.org/incident/19981223041899A), Dec 23, 1998: Bell UH1H (N4590), Quincy, CA, Destroyed, 1 fatal. (.19)On December 23, 1998, at 1151 hours pacific standard time, a Bell UH-1H, N4590, entered an uncontrolled descent, impacted an embankment and rolled into… - [Accident 19981214044099A](https://openairdocs.org/incident/19981214044099A), Dec 14, 1998: Bell UH1H (N94NW), Darrington, WA, Destroyed. On December 14, 1998, approximately 1100 pacific standard time, a garlick UH-1H helicopter, N94NW, which is owned by northwest helicopters, and was being… - [Accident 19980618014279A](https://openairdocs.org/incident/19980618014279A), Jun 18, 1998: Bell UH1H (N869W), Coeur D Alene, ID, Substantial damage. Internal failure of the reduction gear box and no continuity between N2 and the powre trubine. Awaiting on teardown. (.4)the pilot stated that he heard a loud… - [Accident 19980203000919A](https://openairdocs.org/incident/19980203000919A), Feb 3, 1998: Bell UH1H (N30TV), Savannh, TN, Destroyed, 4 fatal. Rope stringing operation. Failed to maintain control, struck pole and workman, rolled and impacted ground. (.4)helicopter (hel) was being used to string… - [Incident 19971021044669I](https://openairdocs.org/incident/19971021044669I), Oct 21, 1997: Bell UH1H (N205WH), Elcajon, CA. Narrative: on October 21, 1997, N250WH, a garlik helicopter model UH-1H, threw a main rotor blade tip weight during a maintenance related ground run-up. The… All 59: https://openairdocs.org/model/bell-uh-1h/incidents.md ## Service difficulty reports (93, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2020FA0000296](https://openairdocs.org/sdr/2020FA0000296), Feb 12, 2020: PIN. DISLODGED. PRIMARY CAUSE OF DAMAGE TO ACCESSORY DRIVE, PIN CAME OUT OF SLEEVE BUSHING AND DAMAGED ADJOINING COMPONENTS. ENGINE IS STILL UNDER TEARDOWN AND INSPECTION. - [SDR 2018FA0000537](https://openairdocs.org/sdr/2018FA0000537), Jul 24, 2018: SUPPORT. INFLT SEPARATION. THE SWASHPLATE SUPPORT FAILED AT 1916 HOURS IN SERVICE, PRIOR TO ITS SCHEDULED RETIREMENT LIFE OF 3600 HOURS, FOR UNKNOWN REASONS. TOTAL TIME TRACKING ERRORS WE - [SDR 2018FA0000193](https://openairdocs.org/sdr/2018FA0000193), Jun 20, 2018: QUILL. DISCONNECTED. AIRCRAFT EXPERIENCED A LOSS OF TAIL ROTOR CONTROL DURING FLIGHT REQUIRING THE PILOT TO CONDUCT A HOVERING AUTOROTATION THAT DAMAGED THE LANDING GEAR AND BELLY O - [SDR 2018FA0000086](https://openairdocs.org/sdr/2018FA0000086), Jan 18, 2018: GRIP. CRACKED. LOWER TANG LEADING EDGE HAS A CRACK EXTENDING THRU GRIP TANG TO BLADE BOLT BUSHING. FOUND DURING PREFLIGHT INSPECTION. - [SDR 2017FA0000601](https://openairdocs.org/sdr/2017FA0000601), Jul 25, 2017: LINE. RUPTURED. ONE REPORT DESCRIBING LOSS OF HYDRAULIC FLUID AND SYS PRESSURE. MECHANICS NOTED A HIGH FREQUENCY VIBRATION IN THE HYDRAULIC SYS SPECIFIC TO TUBE WHICH CAN LEAD - [SDR 2017FA0000035](https://openairdocs.org/sdr/2017FA0000035), Jan 27, 2017: BOLT. LOOSE. DURING INSPECTION, FOUND THE ENGINE COMPRESSOR STATOR VANE RETAINING BOLT HANGING OUT OF IT'S RECESSED MOUNT HOLE. ENGINE BLEED BAND WAS PREVENTING BOLT FROM FA - [SDR 2014FA0000320](https://openairdocs.org/sdr/2014FA0000320), May 14, 2014: LONGERON. CRACKED. DURING HOVER, PILOT HEARD A BANG FROM THE REAR OF THE ACFT. PILOT LANDED BACK AT STAGING AREA. DURING INVESTIGATION, DETERMINED THE TAILBOOM JUST AFT OF THE UPP - [SDR 2012FA0000656](https://openairdocs.org/sdr/2012FA0000656), Sep 17, 2012: BLADE. MISINSTALLED. DURING A PHASE 1 INSPECTION, TAIL ROTOR BLADE CLEARANCE FROM VERTICAL STABILIZER WAS INSUFFICIENT AS IT HAD BEEN IMPROPERLY SHIMMED AND INSTALLED ON THE 90 DEGR - [SDR 2012FA0000655](https://openairdocs.org/sdr/2012FA0000655), Sep 17, 2012: SCISSORS. MISINSTALLED. DURING A PHASE 1 INSPECTION, SCISSOR HAD BEEN IMPROPERLY ASSEMBLED AND INSTALLED ON THE SLEEVE CAUSING DAMAGE TO THE SLEEVE. - [SDR 2012FA0000654](https://openairdocs.org/sdr/2012FA0000654), Sep 17, 2012: GRIP. MISINSTALLED. DURING A PHASE 1 INSPECTION, MAIN ROTOR GRIP HAD BEEN IMPROPERLY ASSEMBLED AND INSTALLED ON THE MAIN ROTOR YOKE CAUSING DAMAGE TO THE NEEDLE BEARING AND RACE. - [SDR 2012FA0000308](https://openairdocs.org/sdr/2012FA0000308), Apr 24, 2012: CAP. BROKEN. CAP BROKEN AT BS 238, LBL 14. - [SDR 2011FA0000657](https://openairdocs.org/sdr/2011FA0000657), Oct 3, 2011: BLADE. CRACKED. PILOT NOTED A VERTICAL VIBRATION DURING FLIGHT. UPON VISUAL INSPECTION, IT WAS FOUND THAT MAIN ROTOR BLADE HAD CRACKED 90 INCHES FROM BLADE TIP THROUGH THE T/E - [SDR 2011FA0000518](https://openairdocs.org/sdr/2011FA0000518), Aug 2, 2011: PINION GEAR. FAILED. GEARBOX WAS O/H AS PART OF AN AIRFRAME REFURBISHMENT PROJECT. THE INPUT QUILL SEAL HAD DEVELOPED AN OIL LEAK AND UPON INVESTIGATION IT WAS FOUND THAT THE INPUT - [SDR 2007FA0000812](https://openairdocs.org/sdr/2007FA0000812), Sep 19, 2007: QUILL ASSY. WORN. QUILL INTERNAL SPLINES WORN AND DAMAGED IN QUILL TUBE CONTACT AREA - [SDR 2006FA0001017](https://openairdocs.org/sdr/2006FA0001017), Oct 20, 2006: SUPPORT BRACKET. LOOSE. TAIL BOOM ELEVATOR SUPPORT BRACKET LOOSE. (WORKING RIVETS/SITE OF PREVIOUS REPAIR WITH PULL TYPE RIVETS). - [SDR 2006FA0000530](https://openairdocs.org/sdr/2006FA0000530), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000529](https://openairdocs.org/sdr/2006FA0000529), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000528](https://openairdocs.org/sdr/2006FA0000528), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000231](https://openairdocs.org/sdr/2006FA0000231), Feb 27, 2006: FITTING. FRACTURED. AC LANDED FOR SHUTDOWN AFTER OPERATING FOR APPROX 3 FLIGHT HOURS, AC WAS SHAKING DURING SHUTDOWN. DURING POST FLIGHT INSP IT WAS FOUND THAT UPPER LT MOUNT HARD - [SDR ASI200501A](https://openairdocs.org/sdr/ASI200501A), Jul 15, 2005: PIN. FAILED. DURING 1200 OVERHAUL OUTBOARD FITTING/STRAP PIN P/N 204-012-104-005, S/N DIFS12334 WAS FOUND BROKEN IN HALF. PIN HAD 1085.1 HOURS SINCE NEW. DISCOLORATION AND C - [SDR ASI200501](https://openairdocs.org/sdr/ASI200501), Jul 15, 2005: PIN. FAILED. DURING 1200 OVERHAUL OUTBOARD FITTING/STRAP PIN WAS FOUND BROKEN IN HALF. PIN HAD 1085.1 HOURS SINCE NEW. DISCOLORATION AND CONDITION OF BREAK INDICATES THE BRE - [SDR 2005FA0000785](https://openairdocs.org/sdr/2005FA0000785), May 11, 2005: DRIVE SHAFT. VIBRATION. ( 2005-5-1) PILOT NOTICED VIBRATION AND RUMBLE COMING FROM THE MAIN TRANSMISSION AREA ON TAKEOFF. MECHANIC DID TROUBLE TROUBLESHOOTING PROCEDURES AND NOTICED ON - [SDR 2004FA0000333](https://openairdocs.org/sdr/2004FA0000333), Mar 25, 2004: STRAP. CRACKED. AIRCRAFT WAS EXPERIENCING VIBRATIONS DURING FLIGHT, MAINTENANCE WAS UNABLE TO REMOVE THE VIBRATION THROUGH TRACK AND BALANCE PROCEDURES. THE MAIN ROTOR ASSEMBLY - [SDR AGQA088876](https://openairdocs.org/sdr/AGQA088876), Aug 12, 2003: PUMP. BROKEN. PUMP PRODUCING FLUXUATING OIL PRESSURE - [SDR LS12003F00000](https://openairdocs.org/sdr/LS12003F00000), Jun 6, 2003: SKIN. CRACKED. THE TAILBOOM FIRST 2 UPPER SKINS HAD NUMEROUS CRACKS. UNDER NORMAL OPERATIONS THESE CRACKS WOULD NEVER MATERIALIZE. THE AIRCRAFT HAS BEEN DOING LIFTING WORK. MU - [SDR CDFROTW1](https://openairdocs.org/sdr/CDFROTW1), Apr 25, 2003: BATTERY. LEAKING. AT REMOVAL OF ELT BATTERY AT POSTED REMOVAL DATE IT WAS DISCOVERED THE BATTERY PACK HAD LEAKED AND CORRODED COMPONENTS WITHIN THE CASE. THERE WAS ALSO A CRACK N - [SDR AUS20021231](https://openairdocs.org/sdr/AUS20021231), Oct 15, 2002: FITTING. FAULTY. (AUS) TAILBOOM LH LOWER ATTACHMENT FITTING ON FUSELAGE HAD OVERSIZE HOLES ALLOWING THE HILOK' PINS TO LOOSEN. SUSPECT CAUSED BY POOR REPAIR WORK. - [SDR XVI2002F00000](https://openairdocs.org/sdr/XVI2002F00000), Apr 11, 2002: FRAME. CRACKED. X-RAY INSPECTION REVEALED A CRACK IN THE FRAME FLANGE APPROXIMATELY .1250 INCH LONG CONTAINED BY ADJACENT FASTENER HOLE. THE CRACK IS LOCTED IN THE 3 OCLOCK POS - [SDR LS1R074932](https://openairdocs.org/sdr/LS1R074932), Jul 20, 2001: CYLINDER. WORN. PART IS WORN EXCESSIVELY. - [SDR LS1R074916](https://openairdocs.org/sdr/LS1R074916), Jul 20, 2001: BATTERY. WEAK. PART IS WEAK. - [SDR LS1R072592](https://openairdocs.org/sdr/LS1R072592), Apr 16, 2001: REGULATOR. OUT OF ADJ. REGULATOR UNABLE TO HOLD ADJUSTMENT. - [SDR LS1R072590](https://openairdocs.org/sdr/LS1R072590), Apr 16, 2001: CONTROL PANEL. INOPERATIVE. LIGHTS WILL NOT COME ON. CONTROL PANEL INOPERATIVE. - [SDR LS1R072190](https://openairdocs.org/sdr/LS1R072190), Apr 10, 2001: CABLE DRUM. STRETCHED. CABLE DRUM STRETCHED. - [SDR LS1R071917](https://openairdocs.org/sdr/LS1R071917), Apr 6, 2001: SHAFT. WORN. PART IS WORN EXCESSIVELY. - [SDR LS1R071916](https://openairdocs.org/sdr/LS1R071916), Apr 6, 2001: SHAFT. WORN. PART IS WORN EXCESSIVELY. - [SDR 20010502CW005](https://openairdocs.org/sdr/20010502CW005), Apr 2, 2001: BLADE. CRACKED. A CRACK WAS NOTICED INSIDE DENT AFT OF THE SPAR ON THE TOP OF THE MAIN ROTOR BLADE. REMOVAL OF PAINT DETERMINED THE CRACK TO BE IN EXCESS OF 6 INCHES LONG. THE - [SDR 20001017SH029](https://openairdocs.org/sdr/20001017SH029), Sep 19, 2000: CROSSTUBE. CRACKED. DURING REFUEL, FOUND FORWARD CROSSTUBE AT RIGHT SADDLE CRACKED. POSSIBLE CAUSE, WEAR. (X) - [SDR 20001017SH030](https://openairdocs.org/sdr/20001017SH030), Sep 1, 2000: ANGLE. CRACKED. FOUND ANGLE CRACKED AT LEFT LOWER TAILBOOM MOUNT. POSSIBLE CAUSE IS STRESS TORQUE OF TAILBOOM TO FUSELAGE. (X) - [SDR LS1R066445](https://openairdocs.org/sdr/LS1R066445), Feb 29, 2000: BEARING. ROUGH. BEARING EXTREMELY ROUGH, AND RATCHETY. - [SDR LS1R066421](https://openairdocs.org/sdr/LS1R066421), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066420](https://openairdocs.org/sdr/LS1R066420), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066419](https://openairdocs.org/sdr/LS1R066419), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066011](https://openairdocs.org/sdr/LS1R066011), Feb 17, 2000: AUDIO PANEL. FAILED. ICS BOX DOES NOT TRANSMIT. - [SDR LS1R066010](https://openairdocs.org/sdr/LS1R066010), Feb 17, 2000: AUDIO PANEL. FAILED. ICS BOX DOES NOT TRANSMIT. - [SDR LS1R065962](https://openairdocs.org/sdr/LS1R065962), Feb 15, 2000: LINEAR ACTUATOR. INOP. LINEAR ACTUATOR IS INOPERATIVE. - [SDR LS1R065943](https://openairdocs.org/sdr/LS1R065943), Feb 11, 2000: VOLT REGULATOR. SHORTED. VOLTAGE REGULATOR SHORTED OUT. - [SDR LS1R065941](https://openairdocs.org/sdr/LS1R065941), Feb 11, 2000: CONTROLLER. FAILED. INTERPHONE DOES NOT TRANSMIT. - [SDR LS1R065936](https://openairdocs.org/sdr/LS1R065936), Feb 11, 2000: VOLT REGULATOR. SHORTED. VOLTAGE REGULATOR SHORTED OUT. - [SDR AGQA065942](https://openairdocs.org/sdr/AGQA065942), Feb 11, 2000: VOLT REGULATOR. INOPERATIVE. VOLTAGE REGULATOR INOPERABLE. WILL NOT REGULATE. - [SDR AGQA065935](https://openairdocs.org/sdr/AGQA065935), Feb 11, 2000: VOLT REGULATOR. INOPERATIVE. VOLTAGE REGULATOR INOPERABLE, WILL NOT REGULATE. All 93: https://openairdocs.org/model/bell-uh-1h/reports.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Garlick Helicopters UH-1H](https://openairdocs.org/model/garlick-helicopters-uh-1h): 7 registered aircraft, registry code 3740005 - [Northwest Rotorcraft UH-1H](https://openairdocs.org/model/northwest-rotorcraft-uh-1h): 6 registered aircraft, registry code 9640002 - [Williams Helicopter UH-1H](https://openairdocs.org/model/williams-helicopter-uh-1h): 6 registered aircraft, registry code 9790870 - [Southwest Florida UH-1H](https://openairdocs.org/model/southwest-florida-uh-1h): 3 registered aircraft, registry code 118141C - [Bell Helicopter UH-1H (205)](https://openairdocs.org/model/bell-helicopter-uh-1h-205): 3 registered aircraft, registry code 1181430 - [Richards Heavylift Helo UH-1H](https://openairdocs.org/model/richards-heavylift-helo-uh-1h): 2 registered aircraft, registry code 118142G - [Arrow Falcon Exporters UH-1H](https://openairdocs.org/model/arrow-falcon-exporters-uh-1h): 2 registered aircraft, registry code 1500001 - [Rotorcraft Development UH-1H](https://openairdocs.org/model/rotorcraft-development-uh-1h): 2 registered aircraft, registry code 3741202 - [Western International Avia UH-1H](https://openairdocs.org/model/western-international-avia-uh-1h): 2 registered aircraft, registry code 9640001 - [Precision Helicopters UH-1H](https://openairdocs.org/model/precision-helicopters-uh-1h): 1 registered aircraft, registry code 1181429 - [Lillquist Brien UH-1H](https://openairdocs.org/model/lillquist-brien-uh-1h): 0 registered aircraft, registry code 056244L - [Bell/Southern Aero UH-1H](https://openairdocs.org/model/bell-southern-aero-uh-1h): 0 registered aircraft, registry code 118141E --- 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.