# Allison 250 series - Type: Engine model (FAA registry) - Registry codes: 03014, 03019 - Manufacturer (registry): ALLISON - Model: 250 SERIES · 250 SER - Engine type: Turbo-prop - Power: 300 hp - Installed in: 79 registered aircraft - Page: https://openairdocs.org/engine/allison-250-series The registry names only the engine series, so ADs for every model in the series are matched. 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. - [AD 2022-10-06](https://openairdocs.org/ad/2022-10-06): Turbine Section · Rolls-Royce 250-C20, 250-C20B, 250-C20C (T63-A-720) and 9 more. Effective Jun 28, 2022 - [AD 2018-13-01](https://openairdocs.org/ad/2018-13-01): Turbine Governor · Rolls-Royce 250-C10 (T63-A-5), 250-C18, 250-C18A and 24 more. Effective Aug 16, 2018 - [AD 2006-20-07](https://openairdocs.org/ad/2006-20-07): Adds an additional life limit for third- and fourth-stage turbine wheels · Rolls-Royce 250-C30, 250-C30G, 250-C30G/2 and 11 more. Effective Nov 2, 2006 - [AD 2006-16-04](https://openairdocs.org/ad/2006-16-04): Inspection of the fuel nozzle screen · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Sep 7, 2006 - [AD 2006-13-06](https://openairdocs.org/ad/2006-13-06): Gas producer rotor assembly tie bolts · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 16 more. Effective Jul 26, 2006 - [AD 2005-20-11](https://openairdocs.org/ad/2005-20-11): Airfoils at the hub and shroud of third-stage turbine wheels · Rolls-Royce 250-C28, 250-C28B and 250-C28C. Effective Oct 18, 2005 - [AD 2005-10-13](https://openairdocs.org/ad/2005-10-13): Turbine energy absorbing ring · Rolls-Royce 250-B17B, 250-B17C, 250-B17D and 7 more. Effective Jun 22, 2005 - [AD 2004-26-09](https://openairdocs.org/ad/2004-26-09): Compressor Adaptor Couplings · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 8 more. Effective Feb 8, 2005 - [AD 2004-24-04](https://openairdocs.org/ad/2004-24-04): Hydromechanical unit (HMU) Power Lever Angle (PLA) potentiometer · Rolls-Royce 250-C30R/3, 250-C30R/3M, 250-C47B and 1 more. Effective Jan 3, 2005 - [AD 2004-14-02](https://openairdocs.org/ad/2004-14-02): SN third-stage turbine wheels · Rolls-Royce 250-C28, 250-C28B and 250-C28C. Effective Jul 26, 2004 - [AD 2002-06-08](https://openairdocs.org/ad/2002-06-08): Third Stage Turbine Wheels · Rolls-Royce 250-C28, 250-C28B and 250-C28C. Effective Apr 26, 2002 - [AD 2001-24-12](https://openairdocs.org/ad/2001-24-12): Helical Torquemeter Gearshaft Assembly · Rolls-Royce 250-B17, 250-B17C, 250-B17D and 13 more. Effective Dec 19, 2001 - [AD 98-24-28](https://openairdocs.org/ad/98-24-28): Main Fuel Control Bellows · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 36 more. Effective Jan 7, 1999 - [AD 98-10-03](https://openairdocs.org/ad/98-10-03): Hydromechanical Unit · Rolls-Royce 250-C47B. Effective May 26, 1998 - [AD 97-25-09](https://openairdocs.org/ad/97-25-09): Helical Power Takeoff Gearshaft Assembly · Rolls-Royce 250-C40B. Effective Dec 23, 1997 - [AD 96-19-01](https://openairdocs.org/ad/96-19-01): Superior Air Parts Manufacture Approval (PMA) Bearings · Rolls-Royce 250-B15G, 250-B17F, 250-B17F/1 and 17 more. Effective Sep 26, 1996 - [AD 93-25-05](https://openairdocs.org/ad/93-25-05): Driveshaft Flex Coupling Bolts, Bushings, and Nuts · Rolls-Royce 250-C20S with STC SE2352NM. Effective Feb 22, 1994 - [AD 89-23-12](https://openairdocs.org/ad/89-23-12): Turbine Nozzle Assembly · Rolls-Royce 250-C28B and 250-C28C. Effective Oct 29, 1989 - [AD 88-17-01](https://openairdocs.org/ad/88-17-01): Fuel Controls · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 26 more. Effective Mar 1, 1989 - [AD 88-07-06](https://openairdocs.org/ad/88-07-06): Gas Producer Support Pressure Oil Tube Assembly · Rolls-Royce 250-C30, 250-C30M, 250-C30P and 2 more. Effective Mar 30, 1988 - [AD 86-20-13](https://openairdocs.org/ad/86-20-13): External Splines · Rolls-Royce 250-C28B, 250-C28C, 250-C30 and 9 more. Effective Dec 3, 1986 - [AD 86-19-12](https://openairdocs.org/ad/86-19-12): Gas Producer Turbine Rotor · Rolls-Royce 250-C30, 250-C30G, 250-C30G/2 and 7 more. Effective Oct 3, 1986 - [AD 85-25-07 R1](https://openairdocs.org/ad/85-25-07-R1): Outer Combustion Case Assembly · Rolls-Royce 250-C28, 250-C28B, 250-C28C and 10 more. Effective Aug 15, 1986 - [AD 86-16-03](https://openairdocs.org/ad/86-16-03): Scavenge Line Air/Oil Centrifugal Separator Assembly · Rolls-Royce 250-C28B and 250-C28C. Effective Aug 13, 1986 - [AD 85-25-12](https://openairdocs.org/ad/85-25-12): Turbine-To-Compressor-Coupling · Rolls-Royce 250-C28B and 250-C28C. Effective Jan 6, 1986 - [AD 85-25-09](https://openairdocs.org/ad/85-25-09): Turbine Shafts And Couplings · Rolls-Royce 250-C28B and 250-C28C. Effective Jan 6, 1986 - [AD 85-25-08](https://openairdocs.org/ad/85-25-08): Compressor Mount Assembly · Rolls-Royce 250-C28B, 250-C28C, 250-C30 and 2 more. Effective Jan 6, 1986 - [AD 84-24-54 R2](https://openairdocs.org/ad/84-24-54-R2): Gas Producer Turbine Rotor · Rolls-Royce 250-C30, 250-C30P, 250-C30R (T703-AD-700) and 1 more. Effective Jan 6, 1986 - [AD 85-06-51](https://openairdocs.org/ad/85-06-51): Magnetic Plugs · Rolls-Royce 250-C30 and 250-C30S. Effective May 10, 1985 - [AD 84-17-51](https://openairdocs.org/ad/84-17-51): Turbine Rotor Assembly · Rolls-Royce 250-C30 and 250-C30S. Effective Dec 26, 1984 - [AD 83-03-02 R1](https://openairdocs.org/ad/83-03-02-R1): Slotted Third Stage Turbine Wheels · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 5 more. Effective Feb 28, 1984 - [AD 81-13-12 R1](https://openairdocs.org/ad/81-13-12-R1): 4th Stage Turbine Nozzle Assembly · Rolls-Royce 250-C30, 250-C30P and 250-C30S. Effective Sep 26, 1983 - [AD 83-01-04](https://openairdocs.org/ad/83-01-04): Turbine Assemblies · Rolls-Royce 250-C28B and 250-C28C. Effective Jan 24, 1983 - [AD 82-24-05](https://openairdocs.org/ad/82-24-05): Control Assembly and Power Turbine Governor Assembly · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Nov 26, 1982 - [AD 82-13-03](https://openairdocs.org/ad/82-13-03): Modify Engine High Pressure Fuel Control Filter Assembly · Rolls-Royce 250-C20 and 250-C20B. Effective Jul 1, 1982 - [AD 82-12-04](https://openairdocs.org/ad/82-12-04): Combined Power Turbine and Propeller Governor Assembly · Cessna 401, 401A, 401B and 11 more. Effective Jun 7, 1982 - [AD 82-03-02](https://openairdocs.org/ad/82-03-02): N2 (Electronic) Overspeed Control System · Rolls-Royce 250-C28B. Effective Feb 4, 1982 - [AD 79-21-01 R1](https://openairdocs.org/ad/79-21-01-R1): Third Stage Turbine Wheel Blade · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 3 more. Effective Jun 3, 1981 - [AD 79-16-06](https://openairdocs.org/ad/79-16-06): Accessory Drive Gearbox · Rolls-Royce 250-C28, 250-C28B, 250-C28C and 10 more. Effective Jan 11, 1980 - [AD 78-14-08](https://openairdocs.org/ad/78-14-08): Fuel Pump Drive Spline · Rolls-Royce 250-C18, 250-C18A, 250-C18B and 3 more. Effective Oct 24, 1979 - [AD 79-18-13](https://openairdocs.org/ad/79-18-13): Third Stage Turbine Wheel · Rolls-Royce 250-C28B and 250-C28C. Effective Sep 6, 1979 - [AD 79-06-05](https://openairdocs.org/ad/79-06-05): Overspeed Control System · Rolls-Royce 250-C28B and 250-C30. Effective Mar 26, 1979 - [AD 78-26-01](https://openairdocs.org/ad/78-26-01): Engine Electrical System · Rolls-Royce 250-C28B. Effective Nov 3, 1978 - [AD 77-15-12](https://openairdocs.org/ad/77-15-12): Power Turbine Coupling Nut · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 23 more. Effective Sep 23, 1977 - [AD 77-09-08](https://openairdocs.org/ad/77-09-08): Bleed Valve Diaphragm · Rolls-Royce 250-B17, 250-B17B, 250-C20 and 2 more. Effective Jul 18, 1977 - [AD 74-14-03](https://openairdocs.org/ad/74-14-03): Fuel Control Rigging · Rolls-Royce 250-C20. Effective Jul 10, 1974 - [AD 73-19-07](https://openairdocs.org/ad/73-19-07): Turbine Governor-To-Fuel Control Tube · Rolls-Royce 250-C20. Effective Sep 14, 1973 - [AD 72-03-06](https://openairdocs.org/ad/72-03-06): Turbine Wheels · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 9 more. Effective Feb 8, 1972 - [AD 69-26-03](https://openairdocs.org/ad/69-26-03): Modify Power and Accessories Gear Box · Rolls-Royce 250-C18, 250-C18A, 250-C18B and 1 more. Effective Dec 25, 1969 - [AD 69-18-04](https://openairdocs.org/ad/69-18-04): Torquemeter Shaftgear · Rolls-Royce 250-C10 (T63-A-5), 250-C10B (T63-A-5A), 250-C10D (T63-A-700) and 4 more. Effective Oct 18, 1969 Historical (superseded or no longer in force): - [AD 2017-18-14](https://openairdocs.org/ad/2017-18-14) (historical): Turbine Section · Rolls-Royce 250-C20, 250-C20B, 250-C20F and 8 more. Effective Oct 13, 2017 - [AD 2015-02-22](https://openairdocs.org/ad/2015-02-22) (historical): Repetitive visual inspections · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 15 more. Effective Mar 9, 2015 - [AD 2012-14-06](https://openairdocs.org/ad/2012-14-06) (historical): Released turbine blades and shrouds · Rolls-Royce 250-C20, 250-C20B and 250-C20R/2. Effective Aug 14, 2012 - [AD 2004-24-09](https://openairdocs.org/ad/2004-24-09) (historical): Fuel nozzle · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 40 more. Effective Jan 5, 2005 - [AD 2003-13-10](https://openairdocs.org/ad/2003-13-10) (historical): Hydromechanical unit (HMU) power lever angle (PLA) · 250-C30R/3, 250-C30R/3M, 250-C47B and 1 more. Effective Jul 15, 2003 - [AD 2001-20-51](https://openairdocs.org/ad/2001-20-51) (historical): Helical Torquemeter Gearshaft Assembly · 250-B17, 250-B17C, 250-B17D and 12 more - [AD 97-21-09](https://openairdocs.org/ad/97-21-09) (historical): Engine Main Electrical Harness Assembly · 250-C47B. Effective Dec 3, 1997 - [AD 96-24-09](https://openairdocs.org/ad/96-24-09) (historical): Engine Main Electrical Harness Assembly · 250-C47B. Effective Nov 25, 1996 All 62: https://openairdocs.org/engine/allison-250-series/ads.md ## Information bulletins (advisory) (7) - [SAIB NE-06-52](https://openairdocs.org/saib/NE-06-52): . Issued Jul 6, 2006 - [SAIB NE-06-12R1](https://openairdocs.org/saib/NE-06-12R1): . Issued Jan 13, 2006 - [SAIB NE-06-12](https://openairdocs.org/saib/NE-06-12) (historical): . Issued Dec 2, 2005 - [SAIB NE-04-58](https://openairdocs.org/saib/NE-04-58): . Issued Mar 24, 2004 - [SAIB NE-04-57](https://openairdocs.org/saib/NE-04-57): . Issued Mar 24, 2004 - [SAIB NE-04-56](https://openairdocs.org/saib/NE-04-56): . Issued Mar 24, 2004 - [SAIB CE-01-10](https://openairdocs.org/saib/CE-01-10): . Issued Jan 24, 2001 ## Registered aircraft (79, first 50) - [N101AL](https://openairdocs.org/aircraft/N101AL): built 1980, S/N U20605684 - [N104HH](https://openairdocs.org/aircraft/N104HH): [Haddock Flying Service Inc](https://openairdocs.org/faa-owner/HADDOCK%20FLYING%20SERVICE%20INC), [Salters, SC](https://openairdocs.org/faa-place/SC/Salters), built 1960, S/N 2062 - [N105HH](https://openairdocs.org/aircraft/N105HH): [Haddock Flying Service Inc](https://openairdocs.org/faa-owner/HADDOCK%20FLYING%20SERVICE%20INC), [Salters, SC](https://openairdocs.org/faa-place/SC/Salters), S/N 1307 - [N10JS](https://openairdocs.org/aircraft/N10JS): [Siegel Jerry S](https://openairdocs.org/faa-owner/SIEGEL%20JERRY%20S), [Los Angeles, CA](https://openairdocs.org/faa-place/CA/Los%20Angeles), S/N 008 - [N1201W](https://openairdocs.org/aircraft/N1201W): [Magnum Aviation LLC](https://openairdocs.org/faa-owner/MAGNUM%20AVIATION%20LLC), [Goff, KS](https://openairdocs.org/faa-place/KS/Goff), built 1966, S/N 7819 - [N123NM](https://openairdocs.org/aircraft/N123NM): [Aglk LLC](https://openairdocs.org/faa-owner/AGLK%20LLC), [Lewes, DE](https://openairdocs.org/faa-place/DE/Lewes), S/N 6702 - [N12BF](https://openairdocs.org/aircraft/N12BF): [Hutter Charles G](https://openairdocs.org/faa-owner/HUTTER%20CHARLES%20G), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1974, S/N 61P-0162-003 - [N12SP](https://openairdocs.org/aircraft/N12SP): [New York State Police](https://openairdocs.org/faa-owner/NEW%20YORK%20STATE%20POLICE), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany), built 2000, S/N 49069 - [N142CC](https://openairdocs.org/aircraft/N142CC): [Machinery Service Co Inc](https://openairdocs.org/faa-owner/MACHINERY%20SERVICE%20CO%20INC), [Wiscasset, ME](https://openairdocs.org/faa-place/ME/Wiscasset), built 1997, S/N 5025 - [N146ET](https://openairdocs.org/aircraft/N146ET): [Four Creeks Aviation Inc](https://openairdocs.org/faa-owner/FOUR%20CREEKS%20AVIATION%20INC), [Visalia, CA](https://openairdocs.org/faa-place/CA/Visalia), built 1976, S/N HA3046 - [N14807](https://openairdocs.org/aircraft/N14807): [Hammock Flying Service Inc](https://openairdocs.org/faa-owner/HAMMOCK%20FLYING%20SERVICE%20INC), [Smithville, AR](https://openairdocs.org/faa-place/AR/Smithville), built 1972, S/N 25078 - [N157BA](https://openairdocs.org/aircraft/N157BA): [Airmart Inc](https://openairdocs.org/faa-owner/AIRMART%20INC), [Lexington, KY](https://openairdocs.org/faa-place/KY/Lexington), built 1986, S/N E-2339 - [N1612](https://openairdocs.org/aircraft/N1612): [Gm Leasing Co LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20CO%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), built 1996, S/N 53044 - [N173SJ](https://openairdocs.org/aircraft/N173SJ): [Anthony Ghidossi Chemical LLC](https://openairdocs.org/faa-owner/ANTHONY%20GHIDOSSI%20CHEMICAL%20LLC), [Marysville, WA](https://openairdocs.org/faa-place/WA/Marysville), built 1981, S/N 5170 - [N175HA](https://openairdocs.org/aircraft/N175HA): [Shearer John](https://openairdocs.org/faa-owner/SHEARER%20JOHN), [The Dalles, OR](https://openairdocs.org/faa-place/OR/The%20Dalles), built 1978, S/N HA3075 - [N183P](https://openairdocs.org/aircraft/N183P): [Skytech Cc LLC](https://openairdocs.org/faa-owner/SKYTECH%20CC%20LLC), [Santa Rosa Beach, FL](https://openairdocs.org/faa-place/FL/Santa%20Rosa%20Beach), built 2000, S/N E-3346 - [N2068W](https://openairdocs.org/aircraft/N2068W): [Chewale Inc](https://openairdocs.org/faa-owner/CHEWALE%20INC), [Beaverton, OR](https://openairdocs.org/faa-place/OR/Beaverton), built 1976, S/N N.C.013 - [N20SP](https://openairdocs.org/aircraft/N20SP): [New York State Police](https://openairdocs.org/faa-owner/NEW%20YORK%20STATE%20POLICE), [Albany, NY](https://openairdocs.org/faa-place/NY/Albany), built 2000, S/N 49070 - [N210SE](https://openairdocs.org/aircraft/N210SE): [Tvpx Aircraft Solutions Inc Trustee](https://openairdocs.org/faa-owner/TVPX%20AIRCRAFT%20SOLUTIONS%20INC%20TRUSTEE), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 1980, S/N P21000621 - [N21772](https://openairdocs.org/aircraft/N21772): [N21772 LLC](https://openairdocs.org/faa-owner/N21772%20LLC), [Wellington, FL](https://openairdocs.org/faa-place/FL/Wellington), built 1967, S/N 970134 - [N220T](https://openairdocs.org/aircraft/N220T): [Southern Aircraft Consultancy Inc Trustee](https://openairdocs.org/faa-owner/SOUTHERN%20AIRCRAFT%20CONSULTANCY%20INC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 1980, S/N P21000593 - [N2240W](https://openairdocs.org/aircraft/N2240W): [Yarak Aviation LLC](https://openairdocs.org/faa-owner/YARAK%20AVIATION%20LLC), [Big Timber, MT](https://openairdocs.org/faa-place/MT/Big%20Timber), built 1962, S/N 6752 - [N2251W](https://openairdocs.org/aircraft/N2251W): [Johnson Aerial Spraying LLC](https://openairdocs.org/faa-owner/JOHNSON%20AERIAL%20SPRAYING%20LLC), [Brayton, IA](https://openairdocs.org/faa-place/IA/Brayton), S/N 7965 - [N2266A](https://openairdocs.org/aircraft/N2266A): [Dt Pralle Enterprise Inc](https://openairdocs.org/faa-owner/DT%20PRALLE%20ENTERPRISE%20INC), [Hampton, IA](https://openairdocs.org/faa-place/IA/Hampton), built 1966, S/N 3557 - [N25LB](https://openairdocs.org/aircraft/N25LB): [Scotts Helicopter Services Inc](https://openairdocs.org/faa-owner/SCOTTS%20HELICOPTER%20SERVICES%20INC), [Le Sueur, MN](https://openairdocs.org/faa-place/MN/Le%20Sueur), built 1972, S/N 25102 - [N2618W](https://openairdocs.org/aircraft/N2618W): [English Air Service LLC](https://openairdocs.org/faa-owner/ENGLISH%20AIR%20SERVICE%20LLC), [Georgetown, TX](https://openairdocs.org/faa-place/TX/Georgetown), built 1966, S/N 6580 - [N2672](https://openairdocs.org/aircraft/N2672): [Reynolds Aviation LLC](https://openairdocs.org/faa-owner/REYNOLDS%20AVIATION%20LLC), [Wills Point, TX](https://openairdocs.org/faa-place/TX/Wills%20Point), built 1992, S/N E-2672 - [N27HX](https://openairdocs.org/aircraft/N27HX): [Helicopter Express LLC](https://openairdocs.org/faa-owner/HELICOPTER%20EXPRESS%20LLC), [Chamblee, GA](https://openairdocs.org/faa-place/GA/Chamblee), built 1996, S/N 53012 - [N28LZ](https://openairdocs.org/aircraft/N28LZ): [Lindemann Thomas](https://openairdocs.org/faa-owner/LINDEMANN%20THOMAS), [Gustine, CA](https://openairdocs.org/faa-place/CA/Gustine), built 1981, S/N U20606531 - [N3094G](https://openairdocs.org/aircraft/N3094G): [Scotts Helicopter Services Inc](https://openairdocs.org/faa-owner/SCOTTS%20HELICOPTER%20SERVICES%20INC), [Le Sueur, MN](https://openairdocs.org/faa-place/MN/Le%20Sueur), built 1965, S/N 3361 - [N3324F](https://openairdocs.org/aircraft/N3324F): [Summit Sales & Leasing Inc](https://openairdocs.org/faa-owner/SUMMIT%20SALES%20%26%20LEASING%20INC), [Salem, VA](https://openairdocs.org/faa-place/VA/Salem), built 1964, S/N 1735 - [N347M](https://openairdocs.org/aircraft/N347M): [Jam Zoom Yayos LLC](https://openairdocs.org/faa-owner/JAM%20ZOOM%20YAYOS%20LLC), [Manheim, PA](https://openairdocs.org/faa-place/PA/Manheim), built 1981, S/N EA-253 - [N40290](https://openairdocs.org/aircraft/N40290): [Haddock Flying Service Inc](https://openairdocs.org/faa-owner/HADDOCK%20FLYING%20SERVICE%20INC), [Salters, SC](https://openairdocs.org/faa-place/SC/Salters), built 1980, S/N HA3081 - [N4032Y](https://openairdocs.org/aircraft/N4032Y): [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 1981, S/N 5180 - [N4068G](https://openairdocs.org/aircraft/N4068G): [Gulf Coast Helicopters Inc](https://openairdocs.org/faa-owner/GULF%20COAST%20HELICOPTERS%20INC), [Pearland, TX](https://openairdocs.org/faa-place/TX/Pearland), built 1968, S/N 229 - [N407CC](https://openairdocs.org/aircraft/N407CC): [County Of Contra Costa](https://openairdocs.org/faa-owner/COUNTY%20OF%20CONTRA%20COSTA), [Martinez, CA](https://openairdocs.org/faa-place/CA/Martinez), built 1997, S/N 53090 - [N407CH](https://openairdocs.org/aircraft/N407CH): [Classic Medical Inc](https://openairdocs.org/faa-owner/CLASSIC%20MEDICAL%20INC), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 1996, S/N 53011 - [N407FC](https://openairdocs.org/aircraft/N407FC): [Intermountain Medical Transport LLC](https://openairdocs.org/faa-owner/INTERMOUNTAIN%20MEDICAL%20TRANSPORT%20LLC), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), built 1996, S/N 53050 - [N407UT](https://openairdocs.org/aircraft/N407UT): [Med Trans Corp](https://openairdocs.org/faa-owner/MED%20TRANS%20CORP), [Denton, TX](https://openairdocs.org/faa-place/TX/Denton), built 1996, S/N 53036 - [N40DV](https://openairdocs.org/aircraft/N40DV): [Nordstrom Eric Trustee](https://openairdocs.org/faa-owner/NORDSTROM%20ERIC%20TRUSTEE), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1982, S/N U20606493 - [N410SC](https://openairdocs.org/aircraft/N410SC): [Alfheim II LLC](https://openairdocs.org/faa-owner/ALFHEIM%20II%20LLC), [Menomonee Falls, WI](https://openairdocs.org/faa-place/WI/Menomonee%20Falls), built 1998, S/N 5026 - [N430AG](https://openairdocs.org/aircraft/N430AG): [Mcmahon Helicopter Services Inc](https://openairdocs.org/faa-owner/MCMAHON%20HELICOPTER%20SERVICES%20INC), [Canton, MI](https://openairdocs.org/faa-place/MI/Canton), built 1998, S/N 49045 - [N430NY](https://openairdocs.org/aircraft/N430NY): [Mcmahon Helicopter Services Inc](https://openairdocs.org/faa-owner/MCMAHON%20HELICOPTER%20SERVICES%20INC), [Canton, MI](https://openairdocs.org/faa-place/MI/Canton), built 2000, S/N 49068 - [N430ST](https://openairdocs.org/aircraft/N430ST): [High Performance Helicopters Corp](https://openairdocs.org/faa-owner/HIGH%20PERFORMANCE%20HELICOPTERS%20CORP), [Crestline, CA](https://openairdocs.org/faa-place/CA/Crestline), built 2000, S/N 49071 - [N430VP](https://openairdocs.org/aircraft/N430VP): [Aerotrust Services Corp Trustee](https://openairdocs.org/faa-owner/AEROTRUST%20SERVICES%20CORP%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N 49005 - [N431HF](https://openairdocs.org/aircraft/N431HF): [Heliflite Shares LLC](https://openairdocs.org/faa-owner/HELIFLITE%20SHARES%20LLC), [Newark, NJ](https://openairdocs.org/faa-place/NJ/Newark), built 1999, S/N 49051 - [N432RD](https://openairdocs.org/aircraft/N432RD): [Airdine LLC](https://openairdocs.org/faa-owner/AIRDINE%20LLC), [San Francisco, CA](https://openairdocs.org/faa-place/CA/San%20Francisco), built 2002, S/N 5039 - [N475AL](https://openairdocs.org/aircraft/N475AL): [Scotts Helicopter Service Inc](https://openairdocs.org/faa-owner/SCOTTS%20HELICOPTER%20SERVICE%20INC), [Le Sueur, MN](https://openairdocs.org/faa-place/MN/Le%20Sueur), built 1968, S/N 6675 - [N480FH](https://openairdocs.org/aircraft/N480FH): [Falcon Helicopters Inc](https://openairdocs.org/faa-owner/FALCON%20HELICOPTERS%20INC), [Logan, NM](https://openairdocs.org/faa-place/NM/Logan), S/N 5009 - [N480MT](https://openairdocs.org/aircraft/N480MT): [Cline Air Services LLC](https://openairdocs.org/faa-owner/CLINE%20AIR%20SERVICES%20LLC), [Ellensburg, WA](https://openairdocs.org/faa-place/WA/Ellensburg), built 1994, S/N 5003 All 79: https://openairdocs.org/engine/allison-250-series/aircraft.md ## NTSB investigations (89, 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 ERA25LA137](https://openairdocs.org/ntsb/ERA25LA137), Mar 9, 2025: Beech A36TC (N347M), Lititz, PA, destroyed. Probable cause: The pilot’s failure to maintain adequate airspeed after takeoff due to his distraction by the opening of the cabin door, which resulted in an exceedance of the airplane’s critical angle of attack and… - [NTSB WPR24LA093](https://openairdocs.org/ntsb/WPR24LA093), Feb 23, 2024: Bell 47G-3B-1 (N2618W), Garey, CA, substantial damage. Probable cause: Maintenance personnel’s failure to properly check the torque paint on a fuel control unit B-nut, which resulted in the loosening of the B-nut, a loss of engine power at a low altitude, and a… - [NTSB ERA21LA016](https://openairdocs.org/ntsb/ERA21LA016), Oct 10, 2020: Enstrom 480 (N899RT), Woodstock, CT, substantial damage. Probable cause: The pilot’s failure to maintain control of the helicopter while attempting to land on a trailer in gusting wind conditions, which resulted in a dynamic rollover. - [NTSB WPR20LA224](https://openairdocs.org/ntsb/WPR20LA224), Jul 17, 2020: Hiller UH 12D (N2297W), Mehama, OR, destroyed, 1 fatal. Probable cause: An in-flight separation of a tail rotor blade due to fatigue cracking and overstress, which resulted in a loss of directional control and subsequent ground impact. - [NTSB ENG20WA035](https://openairdocs.org/ntsb/ENG20WA035), Dec 19, 2019: Cessna P210 (N210BA), Moruya, Australia, substantial damage - [NTSB CEN19TA280](https://openairdocs.org/ntsb/CEN19TA280), Aug 20, 2019: Bell 47G (N1170W), Montrose, CO, substantial damage. Probable cause: A loss of engine power due to fuel starvation, which resulted from attitude-induced unporting of the fuel. - [NTSB GAA19CA261](https://openairdocs.org/ntsb/GAA19CA261), May 13, 2019: Siai-Marchetti SM (N772DW), Belgrade, MT, substantial damage. Probable cause: The pilot receiving instruction's overapplication of rudder during the landing roll and his subsequent failure to maintain directional control, which resulted in a ground loop. - [NTSB WPR19LA028](https://openairdocs.org/ntsb/WPR19LA028), Oct 27, 2018: Bell 430 (N430ST), Kailua, HI, substantial damage. Probable cause: The separation of one of the tail rotors blades’ root enclosures due to improper repair. - [NTSB CEN16LA335](https://openairdocs.org/ntsb/CEN16LA335), Aug 25, 2016: Cessna U206G (N891LL), Cave-In-Rock, IL, substantial damage. Probable cause: A total loss of engine power due to air entering the fuel system for reasons that could not be determined based on available information. Contributing to the accident was the pilot’s inability to… - [NTSB CEN16LA330](https://openairdocs.org/ntsb/CEN16LA330), Aug 23, 2016: Hiller UH 12D (N97TH), Cokeville, WY, substantial damage. Probable cause: Failure of the control rotor cuff due to fatigue. - [NTSB GAA16CA293](https://openairdocs.org/ntsb/GAA16CA293), Jun 8, 2016: Bell 47G (N25LB), Hastings, MN, substantial damage. Probable cause: The pilot's failure to attain a positive rate of climb during takeoff from a service truck, which resulted in an impact with terrain and substantial damage to the tail boom and fuselage. - [NTSB CEN15LA288](https://openairdocs.org/ntsb/CEN15LA288), Jun 28, 2015: Bell 407 - NO Series (N311RL), South Timbalier 127, substantial damage. Probable cause: The pilot's lack of awareness of the severity of the gusting winds, which led to the helicopter being pushed off of the oil platform by a wind gust during engine start. Contributing to the accident… - [NTSB ERA14LA361](https://openairdocs.org/ntsb/ERA14LA361), Jul 26, 2014: Hiller UH 12E (N107HA), Wadesboro, NC, substantial damage. Probable cause: A partial loss of engine power due to the failure of the No. 2 engine accessory gearbox bearing for reasons that could not be determined based on the available information. - [NTSB WPR14CA280](https://openairdocs.org/ntsb/WPR14CA280), Jul 3, 2014: Bell 47G (N684PC), Gaston, OR, substantial damage. Probable cause: The pilot's inability to maintain control of the helicopter as a result of a hydraulic hose becoming entangled around the right skid. - [NTSB CEN13WA156](https://openairdocs.org/ntsb/CEN13WA156), Feb 9, 2013: Cessna P210N (N240PW), Charloeri, Belgium, destroyed, 5 fatal - [NTSB ERA12FA527](https://openairdocs.org/ntsb/ERA12FA527), Aug 25, 2012: Bell 407 (N407N), Abingdon, VA, substantial damage, 1 fatal. Probable cause: The pilot's improper decision to make a low-level departure over water in dark night conditions without lights, which resulted in controlled flight into the water. Contributing to the accident was… - [NTSB WPR12LA347](https://openairdocs.org/ntsb/WPR12LA347), Aug 7, 2012: Hiller UH-12D (N47035), Deer Island, OR, substantial damage. Probable cause: A loss of helicopter control while maneuvering at low altitude for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal… - [NTSB WPR11LA379](https://openairdocs.org/ntsb/WPR11LA379), Aug 14, 2011: Bell 47G-3B-2 (N475AL), Los Banos, CA, substantial damage. Probable cause: The pilot’s inadequate preflight, and contamination of both the engine compressor section and the main rotor blades, which resulted in reduced performance of the engine and rotor system. - [NTSB WPR10CA470](https://openairdocs.org/ntsb/WPR10CA470), Sep 26, 2010: Bell 47G (N7860S), Gaston, OR, substantial damage. Probable cause: The pilot's failure to maintain tail rotor clearance while landing on a transport trailer positioned on an uneven surface. - [NTSB WPR10FA440](https://openairdocs.org/ntsb/WPR10FA440), Aug 31, 2010: Hiller UH 12E (N67264), Kamiah, ID, substantial damage, 3 fatal. Probable cause: In-flight impact of a passenger's metal clipboard with the helicopter’s tail rotor, which resulted in destruction of the tail rotor and subsequent loss of control of the helicopter. The original… - [NTSB ERA10LA383](https://openairdocs.org/ntsb/ERA10LA383), Jul 29, 2010: Hiller UH-12E (N104HH), Holly Hill, SC, substantial damage. Probable cause: Maintenance personnel's improper inspection and cleaning of the fuel nozzle, which resulted in a total loss of engine power. - [NTSB WPR09CA331](https://openairdocs.org/ntsb/WPR09CA331), Jul 7, 2009: Bell 47G-3B-2 (N8169J), Ocean Shores, WA, substantial damage. Probable cause: The pilot's failure to maintain clearance from the water while maneuvering due to the pilot's diverted attention. - [NTSB WPR09LA069](https://openairdocs.org/ntsb/WPR09LA069), Dec 28, 2008: Hughes 369 (N104BN), Honiara, Solomon Islands, destroyed, 1 fatal. Probable cause: The pilot's failure to remove the tail rotor pedal lock before attempting flight, resulting in a loss of control. - [NTSB NYC08LA318](https://openairdocs.org/ntsb/NYC08LA318), Sep 16, 2008: Hiller UH-12E (N3324F), Naruna, VA, substantial damage. Probable cause: The fatigue failure of a main rotor blade drag strut. - [NTSB CHI07LA277](https://openairdocs.org/ntsb/CHI07LA277), Aug 24, 2007: Bell 47G-5A (N25LB), Anoka, MN, substantial damage. Probable cause: The loss of helicopter pitch control for undetermined reasons during the aerial application maneuver and the pilot's inability to control the aircraft during the descent.. A contributing factor to… - [NTSB ANC07LA062](https://openairdocs.org/ntsb/ANC07LA062), Jul 10, 2007: Hiller UH-12E (N146ET), Skwentna, AK, substantial damage. Probable cause: The pilot's failure to maintain clearance from a glacier, which resulted in a tail rotor strike during landing, and damage to the helicopter during an emergency descent/landing on rough/uneven… - [NTSB CHI06CA242](https://openairdocs.org/ntsb/CHI06CA242), Aug 23, 2006: Bell 47G-5 (N2251W), Sanborn, ND, substantial damage. Probable cause: The pilot's failure to maintain clearance from the power lines during the aerial application flight. The power lines were a factor. - [NTSB DFW05CA208](https://openairdocs.org/ntsb/DFW05CA208), Aug 10, 2005: Hiller UH-12E (N535HA), Hampton, AR, substantial damage. Probable cause: A loss of engine power due to fuel exhaustion as a result of the pilot's failure to refuel. A factor was unsuitable terrain to complete a successful autorotation. - [NTSB IAD05LA080](https://openairdocs.org/ntsb/IAD05LA080), Jun 19, 2005: Navickas Load Runner 2000 (N200LR), Hammonton, NJ, destroyed, 2 fatal. Probable cause: The pilot's inadequate in-flight decision, which resulted in fuel exhaustion and subsequent loss of engine power. A factor was the wooded area, into which, the pilot had to autorotate. - [NTSB SEA05FA004](https://openairdocs.org/ntsb/SEA05FA004), Oct 8, 2004: Maule MT-7-420 (N186SB), Bend, OR, substantial damage. Probable cause: Loss of engine power during takeoff climb for undetermined reasons. Rough terrain was a factor. - [NTSB NYC03FA095](https://openairdocs.org/ntsb/NYC03FA095), May 5, 2003: Beech A36 (N111TW), Farmingdale, NJ, substantial damage, 1 fatal. Probable cause: The pilot's delayed decision to refuel, which resulted in fuel exhaustion and the subsequent loss of engine power. - [NTSB ANC02LA081](https://openairdocs.org/ntsb/ANC02LA081), Jul 23, 2002: MBB BO-105S (N491HL), Deadhorse, AK, substantial damage. Probable cause: The pilot's failure to correct a settling-with-power condition during a helicopter landing flare/touchdown, resulting in a hard landing and roll over. - [NTSB ATL02WA120](https://openairdocs.org/ntsb/ATL02WA120), Jun 6, 2002: Cessna P210N (N210BA), Treasure Cay, Bahamas, substantial damage - [NTSB IAD01FA066](https://openairdocs.org/ntsb/IAD01FA066), Jun 7, 2001: Hughes 369A (N58963), Perry, WV, destroyed, 1 fatal. Probable cause: The pilot's continued VFR flight into instrument meteorological conditions, and his failure to maintain terrain clearance. A contributing factor was mountainous terrain. - [NTSB MIA01LA055](https://openairdocs.org/ntsb/MIA01LA055), Jan 5, 2001: Hiller UH-12E (N112EC), Cleveland, TN, destroyed. Probable cause: The PIC's failure to follow safe operating procedures for the maintenance of the rotorcraft's external aerial application equipment, resulting in inadvertent activation of collective as he egressed… - [NTSB NYC00LA157](https://openairdocs.org/ntsb/NYC00LA157), Jun 9, 2000: Siai-Marchetti SF260TP (N43GP), Norfolk, VA, substantial damage. Probable cause: Fuel starvation of the engine, caused by the failure of the fuel transfer pump. - [NTSB ATL00LA043](https://openairdocs.org/ntsb/ATL00LA043), Apr 20, 2000: Hiller UH-12ET (N9762C), Stonesboro, SC, substantial damage. Probable cause: The pilot's improper inflight decision not to refuel which resulted in fuel exhaustion and a total loss of engine power. - [NTSB SEA99LA031](https://openairdocs.org/ntsb/SEA99LA031), Jan 19, 1999: Hiller UH-12E (N67264), Tensed, ID, substantial damage. Probable cause: The pilot-in-command's inadequate fuel management which resulted in fuel exhaustion. Contributing factors were the absence of cautionary markings on the fuel gauge, and high trees at the accident… - [NTSB ATL99LA036](https://openairdocs.org/ntsb/ATL99LA036), Dec 30, 1998: Bell 47G-3B-2 (N123NM), Murfreesboro, TN, substantial damage. Probable cause: The pilot's inadequate flare and his diverted attention, which resulted in a hard landing. - [NTSB CHI98LA339](https://openairdocs.org/ntsb/CHI98LA339), Sep 16, 1998: Enstrom 480 (N142CC), Green Bay, WI, substantial damage. Probable cause: the pilot's failure to maintain adequate rotor rpm during a practice autorotation. - [NTSB CHI98FA313](https://openairdocs.org/ntsb/CHI98FA313), Aug 14, 1998: Hiller FH-1100 (N8171U), Dewitt, MI, destroyed, 1 fatal. Probable cause: The rotor failure/malfunction due to debonding of the tail rotor blade. Also causal was the inadequate maintenance inspection of the aircraft by the company and the improper maintenance procedure by… - [NTSB IAD97WA088](https://openairdocs.org/ntsb/IAD97WA088), Mar 14, 1997: Beech A-36 (N250TP), Lebury, United Kingdom, substantial damage - [NTSB SEA97TA023](https://openairdocs.org/ntsb/SEA97TA023), Oct 29, 1996: Bell 47G-3B-1 (N3098G), Fillmore, UT, substantial damage, 1 fatal. Probable cause: inadequate procedure and inadequate monitoring by the pilot, the operator, and/or other personnel, which allowed one of three external cables to the seed bucket to become entangled with the right… - [NTSB MIA96LA210](https://openairdocs.org/ntsb/MIA96LA210), Aug 11, 1996: Bell 47G-4A (N9472G), Adel, GA, destroyed, 1 fatal. Probable cause: the pilot's misjudgment of clearance between the helicopter and the antenna. A factor relating to the accident was the pilot's use of a drug (medication) that had sedative effects. - [NTSB SEA94LA149](https://openairdocs.org/ntsb/SEA94LA149), Jun 14, 1994: Hiller-Soloy UH-12L4 (N67264), Clarkston, WA, substantial damage. Probable cause: DISCONNECTION OF THE BALLAST BAR AFT RETAINING PIN. FACTOR(S) WERE: TAIL ROTOR BLADE SEPARATION AND REDUCED AIRCRAFT CONTROL. - [NTSB SEA94LA039](https://openairdocs.org/ntsb/SEA94LA039), Dec 7, 1993: Hiller-Soloy UH-12D (N2297W), Sublimity, OR, substantial damage. Probable cause: FUEL EXHAUSTION DUE TO INADEQUATE PREFLIGHT AND REFUELING NOT ACOMPLISHED. - [NTSB SEA94LA037](https://openairdocs.org/ntsb/SEA94LA037), Nov 26, 1993: Hiller UH-12D (N59366), Sublimity, OR, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN CLEARANCE FROM UNMARKED TRANSMISSION WIRES. FACTORS INCLUDE THE PILOT'S INADEQUATE VISUAL LOOKOUT, AND UNMARKED WIRES IN THE AREA OF OPERATION. - [NTSB LAX94LA054](https://openairdocs.org/ntsb/LAX94LA054), Nov 20, 1993: Hiller UH-12E (N161HA), Salinas, CA, substantial damage. Probable cause: a fatigue failure of the torsion-tension bar pin due to fretting corrosion. A factor in this accident was an inadequate quality of material utilized in the manufacture of the pin. - [NTSB SEA94LA029](https://openairdocs.org/ntsb/SEA94LA029), Nov 9, 1993: Bell 47G3B2 (N8169J), Toledo, WA, substantial damage. Probable cause: TRANSMISSION SHEAR BOLTS FAILED CAUSING A LOSS OF POWER TO THE ROTOR SYSTEM, AND THE PILOT ENCOUNTERED UNSUITABLE TERRAIN DURING HIS AUTOROTATION ATTEMPT. - [NTSB MIA92LA014](https://openairdocs.org/ntsb/MIA92LA014), Oct 13, 1991: Bell 47G-5 (N1201W), La Belle, FL, substantial damage. Probable cause: THE PILOT IN COMMAND'S IMPROPER AFT APPLICATION OF CYCLIC CONTROL DURING AN AUTOROTATIVE LANDING TO AN OPEN FIELD, RESULTING IN THE MAIN ROTOR BLADES COLLIDING WITH THE TAIL BOOM. CONTRIBUTING TO THE… All 89: https://openairdocs.org/engine/allison-250-series/ntsb.md ## FAA accident and incident reports (111, 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 20260930013249I](https://openairdocs.org/incident/20260930013249I), Sep 30, 2026: Enstrom Helicopter Corp 480 (N480MT), Chelan, WA, Substantial damage. Aircraft was idling on an inclined logging road and slid on the road into side of a hill on the ground damaging tail rotor and boom. - [Accident 20250309003959A](https://openairdocs.org/incident/20250309003959A), Mar 9, 2025: Beech A36TC (N347M), Lititz, PA, Destroyed. On March 09, 2025, at 15:18 LCL the PIC departed Lancaster pa airport (klns) runway 26 on a planned flight to springfield oh (ksgh). Upon rotation and liftoff… - [Accident 20240223000789A](https://openairdocs.org/incident/20240223000789A), Feb 23, 2024: Bell 47G-3B-1 (N2618W), Garey, CA, Destroyed. The pilot was performing aerial application over a broccoli field in Garey California when he initiated a climb to 80 feet (AGL) to overfly power lines. As the… - [Accident 20201010019029A](https://openairdocs.org/incident/20201010019029A), Oct 10, 2020: Enstrom Helicopter Corp 480 (N899RT), Putnam, CT, Substantial damage. On October 10, 2020, at approximately 09:00, [privacy data omitted](PIC) and two passengers [privacy data omitted] took off from C44 to brookline NH. The… - [Accident 20200717012169A](https://openairdocs.org/incident/20200717012169A), Jul 17, 2020: Hiller UH-12D (N2297W), Mehama, OR, Destroyed, 1 fatal. Helicopter departed one field to relocate to next field for spraying. Witnesses report hearing engine pitch change and then heard helicopter impact the trees.… - [Incident 20200606007869I](https://openairdocs.org/incident/20200606007869I), Jun 6, 2020: Bell 407 (N27HX), Silver City, NM, Minor damage. On June 6, 2020, a Bell 407 helicopter, N27HX, registered to [privacy data omitted], experienced a wire strike while attempting to land at Mimbres Valley… - [Accident 20190820019069A](https://openairdocs.org/incident/20190820019069A), Aug 20, 2019: Bell 47G-3B-1 (N1170W), Montrose, CO, Substantial damage. Pilot stated that as he came over the mesa and leveled off to start the application of pesticide, the helicopter yawed like a gust of wind hit the tail rotor.… - [Accident 20190513004579A](https://openairdocs.org/incident/20190513004579A), May 13, 2019: Siai-Marchetti SM 1019 (N772DW), Belgrade, MT, Substantial damage. On may 5, 2019, at 1150 MST, a Siai- Marchetti model SM1019, N772DW, operated by the owner with his instructor, building time for insurance minimums. They… - [Accident 20181030021259A](https://openairdocs.org/incident/20181030021259A), Oct 30, 2018: Bell 430 (N430ST), Kona, HI, Substantial damage. While climbing to 1500 feet MSL in progress pilot experienced a loud thump. Pilot immediately felt a medium-to high frequency vibration of significant… - [Incident 20170716011809I](https://openairdocs.org/incident/20170716011809I), Jul 16, 2017: Bell 407 (N407FC), Dubois, WY, Substantial damage. While repositioning the EMS helicopter during a medical emergency to a new landing zone the helicopter?s tail rotor struck a rock. The pilot continued to a new… - [Accident 20160825009699A](https://openairdocs.org/incident/20160825009699A), Aug 25, 2016: Cessna U206G (N891LL), Cave In Rock, IL, Substantial damage. N891LL departed the springfield airport at 08:45AM. The fuel was checked by dip-stick and determined to be 550 pounds to take aerial photography of the active… - [Accident 20160608009259A](https://openairdocs.org/incident/20160608009259A), Jun 8, 2016: Bell 47G-5A (N25LB), Hastings, MN, Substantial damage. The pilot was performing an agriculture spraying operation and had just refueled. (Tanks half full) in addition, the pilot had onloaded approximately 80-90… - [Accident 20150628011409A](https://openairdocs.org/incident/20150628011409A), Jun 28, 2015: Bell 407 (N311RL), Gulf Of Mexico, Substantial damage. During start sequence a strong gust of wind hit the platform and the aircraft started sliding sideways toward the safety skirting. The nose of the aircraft… - [Accident 20140726018219A](https://openairdocs.org/incident/20140726018219A), Jul 26, 2014: Hiller UH-12E (N107HA), Wadesboro, NC, Substantial damage. On 7/26/2014 at 1545 local EDT, Hiller UH-12-E, N4107HA, sn: HA3007, registered to summit helicopters inc., experienced an engine (250-C20B, sn: CAE833000)… - [Accident 20140703010129A](https://openairdocs.org/incident/20140703010129A), Jul 3, 2014: Bell 47G-3B-2 (N684PC), Gaston, OR, Substantial damage. After lifting off, spray bucket's RH hydraulic hose snagged the RH fwd skid at about 5 ft off ground. Helicopter attitude shifted fwd and helicopter moved fwd… - [Incident 20130815016939I](https://openairdocs.org/incident/20130815016939I), Aug 15, 2013: Beech A36 (N77DC), Middletown, PA, Minor damage. The subject aircraft was on an IFR flight from (avp) scranton pa to (MDT) Middletown pa at 8000 feet MSL in cruise flight when the aircraft electrical power… - [Accident 20120824018949A](https://openairdocs.org/incident/20120824018949A), Aug 24, 2012: Bell 407 (N407N), Abingdon, VA, Destroyed, 1 fatal. The corporate turbine powered Bell model 407 helicopter had just transported 6 passengers from the bristol, TN motor speedway to the home of the ceo of the… - [Accident 20120807020729A](https://openairdocs.org/incident/20120807020729A), Aug 7, 2012: Hiller UH-12D (N47035), Deer Island, OR, Substantial damage. During a spry operation the pilot reported that at the start of an ag turn he felt a shudder. He easeied out of the turn and then heard a loud bang, he… - [Incident 20120429007099I](https://openairdocs.org/incident/20120429007099I), Apr 29, 2012: Bell 430 (N433UM), Tecumseh, MI, No damage. The pilot landed the Bell BHT-430 helicopter on a main street in downtown Tecumseh, MI to retrieve an accident victim for transport to the university of… - [Incident 20120325003439I](https://openairdocs.org/incident/20120325003439I), Mar 25, 2012: Bell 407 (N407UT), Rockwood, TN, Minor damage. Pilot heard loud banging sound under aircraft. He made a precautionary landing at Rockwood, TN., cut wires and placed light in cockpit, and continued flight.… - [Incident 20120308004749I](https://openairdocs.org/incident/20120308004749I), Mar 8, 2012: Cessna P210N (N970YG), Scottsdale, AZ, Minor damage. On March 8, 2012 at approximately 21:01 z, N970YG, a Cessna 210P turboprop, landed on runway 21 at Scottsdale airport (ksdl) with the gear up. The pilot in… - [Accident 20110814017399A](https://openairdocs.org/incident/20110814017399A), Aug 14, 2011: Bell 47G-3B-2 (N475AL), Los Banos, CA, Substantial damage. Takeoff was from the top of a loading truck. The helo accelerated through effective translational lift when the pilot initiated a climbing right turn into the… - [Accident 20100925046309A](https://openairdocs.org/incident/20100925046309A), Sep 25, 2010: Bell 47G-3B-1 (N7860S), Gaston, OR, Substantial damage. The pilot stated "I was in the process of landing N8760S on the trailer used for over the road transportation of the helicopter. I placed the landing skids on… - [Accident 20100831042429A](https://openairdocs.org/incident/20100831042429A), Aug 31, 2010: Hiller UH-12E (N67264), Kamiah, ID, Substantial damage, 3 fatal. Flight was for the state of Idaho fish and game to count fish on the selway river. Pilot notified statecom flight following he was landing at Kamiah, ID with… - [Accident 20100729042709A](https://openairdocs.org/incident/20100729042709A), Jul 29, 2010: Hiller UH-12E (N104HH), Holly Hill, SC, Substantial damage. On July 29, 2010, at approximately 0930 eastern standard time, a Hiller UH-12E helicopter, N104HH, registered to haddock flying, inc., operating as a 14 CFR… - [Accident 20090707011879A](https://openairdocs.org/incident/20090707011879A), Jul 7, 2009: Bell 47G3B2 (N8169J), Hoquiam, WA, Substantial damage. (-23) On July 7, 2009 N8169J, owned and operated by farm and forest helicopter service inc. received substantial damage when the pilot allowed the helicopter… - [Accident 20081227856989A](https://openairdocs.org/incident/20081227856989A), Dec 27, 2008: Hughes 369A (N104BN), Honiara, BP, Destroyed, 1 fatal. (-23) Aircraft lifted off from fishing boat without removing "unapproved rudder pedal lock." Witness stated he observed pilot reaching for something, possible… - [Incident 20081002853049I](https://openairdocs.org/incident/20081002853049I), Oct 2, 2008: Bell 430 (N430AG), New York, NY, Minor damage. Pilot-in-command (PIC) [privacy data omitted] stated he started the aircraft alone. The Bell BHT-430 helicopter was run for 30-40 minutes before PIC realized… - [Accident 20080916849359A](https://openairdocs.org/incident/20080916849359A), Sep 16, 2008: Hiller UH12E (N3324F), Roanoke, VA, Substantial damage. (-23) According to the pilot on September 16, 2008 at approximately 18:43 hours helicopter experienced a violent horizontal shake or wobble. The helicopter… - [Accident 20070824019979A](https://openairdocs.org/incident/20070824019979A), Aug 24, 2007: Bell 47G5A (N25LB), Ramsey, MN, Destroyed. (-23) During mosquito control application and enroute from aerial application area to nearby parking lot, pilot heard a loud pop then immediately lost pitch… - [Accident 20070709014499A](https://openairdocs.org/incident/20070709014499A), Jul 9, 2007: Hiller UH12E (N146ET), Mcgrath, AK, Substantial damage. (-23) The rotorcraft was hovering with one skid on the surface of a knife edge shaped ridge. A gust of wind hit the rotorcraft causing the tailrotor to strike… - [Accident 20060816022939A](https://openairdocs.org/incident/20060816022939A), Aug 16, 2006: Bell 47G5 (N2251W), Valley City, NC, Substantial damage. (-23) Contacted power lines while working nw of Valley City, ND. - [Accident 20050810018569A](https://openairdocs.org/incident/20050810018569A), Aug 10, 2005: Hiller UH12E (N535HA), Hampton, AR, Substantial damage. (-23) On August 10, 2005, at approximately 1110 central standard time, a UH-12-E Hiller single engine helicopter, registration number N535HA operated by summit… - [Accident 20050619012469A](https://openairdocs.org/incident/20050619012469A), Jun 19, 2005: LR2000AG (N200LR), Hamiltontownsh, NJ, Destroyed, 2 fatal. (-23) Pilot departed from elmer, NJ at 7:20 am for hammonton (N81) airport,new jersey to purchase jet fuel, as reported by witnesses. At 11AM family members… - [Incident 20041113031689I](https://openairdocs.org/incident/20041113031689I), Nov 13, 2004: Bell 430 (N433UM), Wayne, MI, Minor damage. (-23) The pilot made an attempt to land the helicopter at oak wood general hospital located in Wayne mi. While landing the pilot misjudged his clearance and… - [Accident 20041008035409A](https://openairdocs.org/incident/20041008035409A), Oct 8, 2004: Maule MT7420 (N186SB), Bend, OR, Substantial damage. (-23) Accident still under investigation. Mechanical components to be evaluated for internal failures by manufacturer. Result to be forthcoming. - [Incident 20040906034469I](https://openairdocs.org/incident/20040906034469I), Sep 6, 2004: Bell 430 (N432UT), Philadelphia, TN, Minor damage. (-23) The pilot and crew of the EMS helicopter responded to an on-scene flight for patient pickup in a field beside a state highway. After a high recon to… - [Accident 20030505009489A](https://openairdocs.org/incident/20030505009489A), May 5, 2003: Beech A36 (N111TW), Belmar/Farmingd, NJ, Destroyed, 1 fatal. (-23) On 05-05-2003 aircraft departed on an IFR flight plan from sarasota FL (srq) to destination elizabeth city, NC. While enroute the pilot received… - [Accident 20020723016189A](https://openairdocs.org/incident/20020723016189A), Jul 23, 2002: Bolkms BO105S (N491HL), Deadhorse, AK, No damage. (.19) On July 23, 2002, about 1515 Alaska daylight time, a high skid-equipped mbb BO-105 helicopter, N491HL, sustained substantial damage during landing in a… - [Incident 20011114029869I](https://openairdocs.org/incident/20011114029869I), Nov 14, 2001: Bell 47G3B2 (N8169J), Cinabar, WA, Minor damage. (-23) Pilot statement: on November 14, 2001 at approximately 11:10 am, while slinging (FAR part 133) with a 30' line, I heard or felt something, like a thunk,… - [Accident 20010607017799A](https://openairdocs.org/incident/20010607017799A), Jun 7, 2001: Hughes 369A (N58963), Perry, VA, No damage. (-23) Preliminary report. Accident currently under investigation. (-23 amendment): the pilot attempted to continue a VFR flight into IMC. The aircraft struck a… - [Accident 20010105000479A](https://openairdocs.org/incident/20010105000479A), Jan 5, 2001: Hiller UH12E (N112EC), Cleveland, TN, Destroyed. (-23) Pilot was utilizing this helicopter to distribute fertilizer via sling-loaded fiberglass bucket. Fertilizer was to be dispensed from the bottom of the… - [Incident 20000708034339I](https://openairdocs.org/incident/20000708034339I), Jul 8, 2000: Bell 222UT (N12SP), Albany, NY, Substantial damage. (-23)While on short final for a landing at the Albany medical center rooftop helipad, the tailrotor of N12SP, a Bell helicopter BHT-222UT struck the main rotor… - [Accident 20000609040749A](https://openairdocs.org/incident/20000609040749A), Jun 9, 2000: Mrchti SF260 (N43GP), Norfolk, VA, Substantial damage. (.4) On June 9, 2000, about 1851 eastern daylight time, an experimental certificated siai-marchetti SF260TP, N43GP, was substantially damaged after it… - [Accident 20000420023539A](https://openairdocs.org/incident/20000420023539A), Apr 20, 2000: Hiller UH12E (N9762C), Stonesboro, SC, Substantial damage. (-4) On April 20, 2000, at 1015 eastern daylight time, a Hiller UH-12 helicopter, collided with trees while attempting an autorotation near Stonesboro, south… - [Incident 20000122002709I](https://openairdocs.org/incident/20000122002709I), Jan 22, 2000: Piper PA60601P (N312BA), St Augustine, FL, Minor damage. (-5) On January 22, 2000, Mr. Robert allison, pilot and owner of Aerostar N312BA, forgot to extend his landing gear during landing on runway 13 at st.… - [Accident 19990119014949A](https://openairdocs.org/incident/19990119014949A), Jan 19, 1999: Hiller UH12E (N67264), Tensed, ID, Destroyed. (.19)On January 19, 1999, approxiamtely 1530 hours pacific standard time, a Hiller UH-12E, turbo-shaft powered rotorcraft, N67264, registered to james r. pope,… - [Accident 19981230034399A](https://openairdocs.org/incident/19981230034399A), Dec 30, 1998: Bell 47G3B2 (N123NM), Murfreesboro, TN, Substantial damage. Bell 47G-3B-A helicopter landed hard, and the main rotor sheared the tail boom. (-23) pilot impacted runway 36 at mbt from a 5 foot hover/taxi on landing.… - [Accident 19980916037209A](https://openairdocs.org/incident/19980916037209A), Sep 16, 1998: Enstrm ENSTROM480 (N142CC), Green Bay, WI, Substantial damage. (.19) On September 16, 1998, at 0833 central daylight time, an Enstrom 480, N142CC, operated by a private pilot collided with the terrain while practicing… - [Accident 19980814020869A](https://openairdocs.org/incident/19980814020869A), Aug 14, 1998: Hiller FH1100 (N8171U), Dewitt, MI, Substantial damage, 1 fatal. Helicopter crashed under unknown circumstances, pilot suffered fatal inj. (-23) during cruise flight one tail rotor blade separated form its hub, followed by… All 111: https://openairdocs.org/engine/allison-250-series/incidents.md ## STCs that may be installed (OpenAirDocs) (12) Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SE2352NM](https://openairdocs.org/stc/SE2352NM): Modification of turbine engine. Fifty-Ten-Yankee LLC. Lists 250-C20S - [STC SE00057AT](https://openairdocs.org/stc/SE00057AT): Installation of Aeronautical Accessories, Inc., Pc Safety Valve Kit. Bell Helicopter Textron Inc. Lists 250-C28 - [STC SE00327AT](https://openairdocs.org/stc/SE00327AT): Installation of PC Safety Valve Kit. Bell Helicopter Textron Inc. Lists 250-B17 - [STC SE5511NM](https://openairdocs.org/stc/SE5511NM): Installation of compressor discharge pressue (PC) valve. Bell Helicopter Textron Inc. Lists 250-C20 - [STC SE769NW](https://openairdocs.org/stc/SE769NW): Installation of Soloy Part No. 250-1001-1 fuel line. Siam Hiller Holdings Inc. Lists 250-C18 - [STC SE00014EN](https://openairdocs.org/stc/SE00014EN): Installation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models. Pratt & Whitney Engine Services Inc. Lists 250-C20B - [STC SE00026EN](https://openairdocs.org/stc/SE00026EN): Installation of Pratt & Whitney Engine Services Inc. IntelliStart Plus Electronic Control Unit (ECU), P/N DPU-K-010 on specified 250 engine models. Pratt & Whitney Engine Services Inc. Lists 250-C28 - [STC SE00027EN](https://openairdocs.org/stc/SE00027EN): Installation of Pratt & Whitney Engine Services Inc. Intellistart plus electronic control unit (ECU), P/N DPU-K-010 on the specified 250 engine models. Pratt & Whitney Engine Services Inc. Lists 250-C10 (T63-A-5) - [STC SE492GL](https://openairdocs.org/stc/SE492GL): Incorporation of a fuel flow transducer. Shadin Avionics. Lists 250-C18A - [STC SE578GL](https://openairdocs.org/stc/SE578GL): Installation of a fuel flow transducer. Shadin Avionics. Lists 250-C28B - [STC ST00037AT](https://openairdocs.org/stc/ST00037AT): Unison igniter plugs, P/N 9044400-1. Unison Industries. Lists 250-B15A - [STC SQ00338AT](https://openairdocs.org/stc/SQ00338AT): Unison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106. Unison Industries. Lists 250-B15G --- 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.