# Rolls-Royce 250-C20 - Type: Engine model (FAA registry) - Registry code: 54178 - Manufacturer (registry): ROLLS-ROYC - Model: 250-C20 - Engine type: Turbo-shaft - Power: 400 hp - Data sheet: [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs) - Holder: Rolls-Royce Corporation - Installed in: 42 registered aircraft - Page: https://openairdocs.org/engine/rolls-royce-250-c20 Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [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 2006-16-04](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 2005-10-13](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 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 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 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 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 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 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 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 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 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 2001-20-51](https://openairdocs.org/ad/2001-20-51) (historical): Helical Torquemeter Gearshaft Assembly · 250-B17, 250-B17C, 250-B17D and 12 more ## Information bulletins (advisory) (1) - [SAIB CE-01-10](https://openairdocs.org/saib/CE-01-10): . Issued Jan 24, 2001 ## Registered aircraft (42) - [N106AM](https://openairdocs.org/aircraft/N106AM): [Jasons Helicopter Services LLC](https://openairdocs.org/faa-owner/JASONS%20HELICOPTER%20SERVICES%20LLC), [New Prague, MN](https://openairdocs.org/faa-place/MN/New%20Prague), built 1974, S/N 1384 - [N110GL](https://openairdocs.org/aircraft/N110GL): [Qualitair LLC Trustee](https://openairdocs.org/faa-owner/QUALITAIR%20LLC%20TRUSTEE), Michelstadt, built 1982, S/N 6031 - [N114GS](https://openairdocs.org/aircraft/N114GS): [Aviation Company Inc](https://openairdocs.org/faa-owner/AVIATION%20COMPANY%20INC), [Cheyenne, WY](https://openairdocs.org/faa-place/WY/Cheyenne), built 1976, S/N 34 - [N119T](https://openairdocs.org/aircraft/N119T): [Taylor Robert T](https://openairdocs.org/faa-owner/TAYLOR%20ROBERT%20T), [Chehalis, WA](https://openairdocs.org/faa-place/WA/Chehalis), built 1976, S/N 760844S - [N137AG](https://openairdocs.org/aircraft/N137AG): [Top Gun Precision Ag LLC](https://openairdocs.org/faa-owner/TOP%20GUN%20PRECISION%20AG%20LLC), [Skidmore, TX](https://openairdocs.org/faa-place/TX/Skidmore), built 1975, S/N 1832 - [N137HS](https://openairdocs.org/aircraft/N137HS): [Helicopter Services Of Illinois LLC](https://openairdocs.org/faa-owner/HELICOPTER%20SERVICES%20OF%20ILLINOIS%20LLC), [Fisher, IL](https://openairdocs.org/faa-place/IL/Fisher), built 1977, S/N 2292 - [N146SH](https://openairdocs.org/aircraft/N146SH): [Scott'S Helicopter Services](https://openairdocs.org/faa-owner/SCOTT'S%20HELICOPTER%20SERVICES), [Le Sueur, MN](https://openairdocs.org/faa-place/MN/Le%20Sueur), built 1973, S/N 957 - [N150AG](https://openairdocs.org/aircraft/N150AG): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1971, S/N 1090201M - [N190RH](https://openairdocs.org/aircraft/N190RH): [Liberty Blades LLC](https://openairdocs.org/faa-owner/LIBERTY%20BLADES%20LLC), [Flandreau, SD](https://openairdocs.org/faa-place/SD/Flandreau), built 1975, S/N 1687 - [N206AL](https://openairdocs.org/aircraft/N206AL): [Vertical Vegetation Management LLC](https://openairdocs.org/faa-owner/VERTICAL%20VEGETATION%20MANAGEMENT%20LLC), [Darlington, IN](https://openairdocs.org/faa-place/IN/Darlington), built 1979, S/N 2879 - [N206BP](https://openairdocs.org/aircraft/N206BP): [Airman Helicopter Inc](https://openairdocs.org/faa-owner/AIRMAN%20HELICOPTER%20INC), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale), built 1973, S/N 1231 - [N212SP](https://openairdocs.org/aircraft/N212SP): [Airman Helicopter Inc](https://openairdocs.org/faa-owner/AIRMAN%20HELICOPTER%20INC), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale), built 1976, S/N 2043 - [N226WA](https://openairdocs.org/aircraft/N226WA): [Newton Property Leasing LLC](https://openairdocs.org/faa-owner/NEWTON%20PROPERTY%20LEASING%20LLC), [Greene, IA](https://openairdocs.org/faa-place/IA/Greene), built 1973, S/N 1110 - [N23SD](https://openairdocs.org/aircraft/N23SD): [North Wind Aviation LLC](https://openairdocs.org/faa-owner/NORTH%20WIND%20AVIATION%20LLC), [Chelan, WA](https://openairdocs.org/faa-place/WA/Chelan), S/N 811 - [N26BL](https://openairdocs.org/aircraft/N26BL): [58d Leasing LLC](https://openairdocs.org/faa-owner/58D%20LEASING%20LLC), [Plover, WI](https://openairdocs.org/faa-place/WI/Plover), built 1976, S/N 2030 - [N28UK](https://openairdocs.org/aircraft/N28UK): [Oas2 LLC](https://openairdocs.org/faa-owner/OAS2%20LLC), [Orlando, FL](https://openairdocs.org/faa-place/FL/Orlando), built 1978, S/N 2475 - [N2949W](https://openairdocs.org/aircraft/N2949W): [Thiel Air Care Inc](https://openairdocs.org/faa-owner/THIEL%20AIR%20CARE%20INC), [Chowchilla, CA](https://openairdocs.org/faa-place/CA/Chowchilla), built 1972, S/N 824 - [N313AP](https://openairdocs.org/aircraft/N313AP): [Wav Series LLC](https://openairdocs.org/faa-owner/WAV%20SERIES%20LLC), [Batavia, IL](https://openairdocs.org/faa-place/IL/Batavia), built 1981, S/N 3471 - [N313JP](https://openairdocs.org/aircraft/N313JP): [Perell John](https://openairdocs.org/faa-owner/PERELL%20JOHN), [Miami Beach, FL](https://openairdocs.org/faa-place/FL/Miami%20Beach), built 1972, S/N 1120428S - [N333FC](https://openairdocs.org/aircraft/N333FC): [Golden Ranch Aviation Inc](https://openairdocs.org/faa-owner/GOLDEN%20RANCH%20AVIATION%20INC), [Raceland, LA](https://openairdocs.org/faa-place/LA/Raceland), built 1975, S/N 1763 - [N369GS](https://openairdocs.org/aircraft/N369GS): [Hellyer Aviation](https://openairdocs.org/faa-owner/HELLYER%20AVIATION), [Worland, WY](https://openairdocs.org/faa-place/WY/Worland), built 1973, S/N 1230548S - [N386PZ](https://openairdocs.org/aircraft/N386PZ): [Fast Boy Equipment LLC](https://openairdocs.org/faa-owner/FAST%20BOY%20EQUIPMENT%20LLC), [Houston, TX](https://openairdocs.org/faa-place/TX/Houston), S/N 407 - [N4010G](https://openairdocs.org/aircraft/N4010G): [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 1968, S/N 183 - [N41AJ](https://openairdocs.org/aircraft/N41AJ): [English Air Service LLC](https://openairdocs.org/faa-owner/ENGLISH%20AIR%20SERVICE%20LLC), [Georgetown, TX](https://openairdocs.org/faa-place/TX/Georgetown), built 1978, S/N 480299D - [N421SP](https://openairdocs.org/aircraft/N421SP): [Kentucky State Police](https://openairdocs.org/faa-owner/KENTUCKY%20STATE%20POLICE), [Frankfort, KY](https://openairdocs.org/faa-place/KY/Frankfort), built 2008, S/N 0714FF - [N42FF](https://openairdocs.org/aircraft/N42FF): [Beef Aviation LLC](https://openairdocs.org/faa-owner/BEEF%20AVIATION%20LLC), [Bradenton, FL](https://openairdocs.org/faa-place/FL/Bradenton), built 1984, S/N 0141E - [N450AG](https://openairdocs.org/aircraft/N450AG): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1971, S/N 1090202M - [N480E](https://openairdocs.org/aircraft/N480E): [Midtex Aviation LLC](https://openairdocs.org/faa-owner/MIDTEX%20AVIATION%20LLC), [Midlothian, TX](https://openairdocs.org/faa-place/TX/Midlothian), built 1993, S/N 5001 - [N504EH](https://openairdocs.org/aircraft/N504EH): [West Valley Aviation Inc](https://openairdocs.org/faa-owner/WEST%20VALLEY%20AVIATION%20INC), [Five Points, CA](https://openairdocs.org/faa-place/CA/Five%20Points), built 1967, S/N 19 - [N5743H](https://openairdocs.org/aircraft/N5743H): [Aspen Ag Helicopters Inc](https://openairdocs.org/faa-owner/ASPEN%20AG%20HELICOPTERS%20INC), [Oxnard, CA](https://openairdocs.org/faa-place/CA/Oxnard), built 1980, S/N 3042 - [N59600](https://openairdocs.org/aircraft/N59600): [Henke Jeff A](https://openairdocs.org/faa-owner/HENKE%20JEFF%20A), [Perry, OK](https://openairdocs.org/faa-place/OK/Perry), S/N 1420 - [N67744](https://openairdocs.org/aircraft/N67744): [Hendrickson Flying Service Inc](https://openairdocs.org/faa-owner/HENDRICKSON%20FLYING%20SERVICE%20INC), [Rochelle, IL](https://openairdocs.org/faa-place/IL/Rochelle), built 1995, S/N 5199 - [N702CG](https://openairdocs.org/aircraft/N702CG): [702cg LLC](https://openairdocs.org/faa-owner/702CG%20LLC), [Muskogee, OK](https://openairdocs.org/faa-place/OK/Muskogee), built 1960, S/N 6030 - [N727JV](https://openairdocs.org/aircraft/N727JV): [California Helicopter Operations LLC](https://openairdocs.org/faa-owner/CALIFORNIA%20HELICOPTER%20OPERATIONS%20LLC), [Santa Rosa, CA](https://openairdocs.org/faa-place/CA/Santa%20Rosa), built 1973, S/N 230451S - [N77YV](https://openairdocs.org/aircraft/N77YV): [Sara Helicopters Inc](https://openairdocs.org/faa-owner/SARA%20HELICOPTERS%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1972, S/N 520381S - [N808JH](https://openairdocs.org/aircraft/N808JH): [Treeline Helicopters Inc](https://openairdocs.org/faa-owner/TREELINE%20HELICOPTERS%20INC), [Bristol, TN](https://openairdocs.org/faa-place/TN/Bristol), built 2008, S/N 0577E - [N8159J](https://openairdocs.org/aircraft/N8159J): [Forming Agrotors Inc](https://openairdocs.org/faa-owner/FORMING%20AGROTORS%20INC), [Louisville, MS](https://openairdocs.org/faa-place/MS/Louisville), built 1970, S/N 512 - [N85RB](https://openairdocs.org/aircraft/N85RB): [Scott John D](https://openairdocs.org/faa-owner/SCOTT%20JOHN%20D), [Lyndon, KS](https://openairdocs.org/faa-place/KS/Lyndon), built 1972, S/N 831 - [N88HC](https://openairdocs.org/aircraft/N88HC): [Tri-Rotor Spray & Chemical](https://openairdocs.org/faa-owner/TRI-ROTOR%20SPRAY%20%26%20CHEMICAL), [Ulysses, KS](https://openairdocs.org/faa-place/KS/Ulysses), built 1975, S/N 1576 - [N9151T](https://openairdocs.org/aircraft/N9151T): [Hiller Aircraft Corp](https://openairdocs.org/faa-owner/HILLER%20AIRCRAFT%20CORP), [Firebaugh, CA](https://openairdocs.org/faa-place/CA/Firebaugh), S/N 5089 - [N93MK](https://openairdocs.org/aircraft/N93MK): [Del Rio Aviation Inc](https://openairdocs.org/faa-owner/DEL%20RIO%20AVIATION%20INC), [Paso Robles, CA](https://openairdocs.org/faa-place/CA/Paso%20Robles), built 1972, S/N 867 - [N9677N](https://openairdocs.org/aircraft/N9677N): [Dat Aircraft LLC](https://openairdocs.org/faa-owner/DAT%20AIRCRAFT%20LLC), [Lewes, DE](https://openairdocs.org/faa-place/DE/Lewes), built 1974, S/N 1020422S ## NTSB investigations (23) 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 WPR25FA114](https://openairdocs.org/ntsb/WPR25FA114), Mar 19, 2025: Bell 206B II (N23SD), Mountain Home Park, WA, substantial damage, 1 fatal, investigation ongoing - [NTSB GAA24WA292](https://openairdocs.org/ntsb/GAA24WA292), Sep 21, 2024: Bell 206 (N206BH), Arroyo Agua, Dominican Republic, destroyed - [NTSB CEN23LA237](https://openairdocs.org/ntsb/CEN23LA237), Jun 11, 2023: Bell 206B (N85RB), Pratt, KS, substantial damage. Probable cause: Fuel exhaustion due to the pilot’s inadequate preflight planning. - [NTSB ERA22FA160](https://openairdocs.org/ntsb/ERA22FA160), Mar 18, 2022: MD Helicopters 369 (N650AG), Loxahatchee, FL, substantial damage, 2 fatal. Probable cause: The pilot’s failure to maintain clearance from power lines while maneuvering at low altitude. - [NTSB CEN22FA053](https://openairdocs.org/ntsb/CEN22FA053), Nov 28, 2021: Bell 206 (N59600), Perry, OK, destroyed, 1 fatal. Probable cause: A loss of lateral control during a hover that resulted in an impact with terrain. Based on the available evidence, the reason for the loss of lateral control could not be determined. - [NTSB CEN21LA165](https://openairdocs.org/ntsb/CEN21LA165), Mar 25, 2021: Hughes 369D (N41AJ), Lake City, KS, substantial damage. Probable cause: The pilot’s failure to maintain clearance from power lines during power line maintenance. - [NTSB ERA20FA012](https://openairdocs.org/ntsb/ERA20FA012), Oct 17, 2019: Bell 206 (N167AG), New Salem, NC, substantial damage, 1 fatal. Probable cause: The pilot's inadequate visual lookout, which resulted in impact with a powerline. - [NTSB WPR19LA097](https://openairdocs.org/ntsb/WPR19LA097), Mar 17, 2019: MD Helicopter 369 (N119T), Newberg, OR, substantial damage. Probable cause: The pilot's improper fuel planning, which resulted in fuel exhaustion and a subsequent total loss of engine power. - [NTSB WPR19TA061](https://openairdocs.org/ntsb/WPR19TA061), Jan 12, 2019: Bell 206 (N88HC), Yuma, AZ, substantial damage. Probable cause: The pilot's failure to maintain clearance from power transmission wires while flying at low altitude in nighttime conditions. - [NTSB CEN18FA074](https://openairdocs.org/ntsb/CEN18FA074), Jan 15, 2018: MD Helicopters 369HM (N4QX), Perrysburg, OH, substantial damage, 2 fatal. Probable cause: A loss of engine power due to snow or ice ingestion at an altitude that was insufficient to allow for engine re-ignition. Contributing to the accident were conditions, including altitude and flat… - [NTSB CEN18LA020](https://openairdocs.org/ntsb/CEN18LA020), Oct 24, 2017: Bell 206B (N60EA), Groom, TX, substantial damage. Probable cause: The total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s decision to operate the helicopter with minimum fuel on board. - [NTSB GAA17CA393](https://openairdocs.org/ntsb/GAA17CA393), Jul 6, 2017: Bell 206 (N8159J), Dixon, KY, substantial damage. Probable cause: The pilot’s failure to see and avoid power lines while maneuvering at a low altitude. Contributing to the accident was the pilot’s failure to adequately identify hazards to flight during agricultural… - [NTSB CEN16WA402](https://openairdocs.org/ntsb/CEN16WA402), May 8, 2016: Bell 206 (N531RR), Mexico City, Mexico, substantial damage - [NTSB CEN14CA098](https://openairdocs.org/ntsb/CEN14CA098), Jan 2, 2014: Bell 206B (N400XL), Temple, TX, substantial damage. Probable cause: The pilot's loss of control while landing on a mobile helipad. - [NTSB CEN12LA267](https://openairdocs.org/ntsb/CEN12LA267), May 2, 2012: Bell 206B (N85RB), Valley Falls, KS, substantial damage. Probable cause: The pilot’s inadequate compensation for the wind conditions during a hover maneuver, which resulted in a loss of tail rotor effectiveness. - [NTSB CEN10CA446](https://openairdocs.org/ntsb/CEN10CA446), Jul 28, 2010: Bell 206 (N275RA), St. Olaf, IA, substantial damage. Probable cause: The pilot's failure to maintain clearance from wires during the agricultural flight. - [NTSB CHI02LA181](https://openairdocs.org/ntsb/CHI02LA181), Jul 6, 2002: Bell 206B (N60EA), Three Rivers, MI, substantial damage. Probable cause: A loss of tail rotor effectiveness. - [NTSB CHI99LA334](https://openairdocs.org/ntsb/CHI99LA334), Sep 9, 1999: Bell 206B (N4010G), Nekoosa, WI, substantial damage. Probable cause: the pilot's inadequate compensation for wind gusts. Factors were the wind gusts and the two vehicles parked nearby. - [NTSB MIA98LA053](https://openairdocs.org/ntsb/MIA98LA053), Jan 7, 1998: Bell 206B (N333FC), Pooler, GA, substantial damage. Probable cause: The pilot's failure to maintain a safe altitude and a visual lookout while operating under a special visual flight rules clearance in instrument flight rule conditions, which resulted in the… - [NTSB MIA91LA229](https://openairdocs.org/ntsb/MIA91LA229), Jul 9, 1991: Bell 206B (N333FC), Vero Beach, FL, substantial damage. Probable cause: THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN THE PROPER DESCENT RATE RESULTING IN A HARD LANDING. - [NTSB DEN84LA124](https://openairdocs.org/ntsb/DEN84LA124), Apr 6, 1984: Bell 206B (N5743H), Farmington, NM, substantial damage - [NTSB FTW78DA087](https://openairdocs.org/ntsb/FTW78DA087), Sep 20, 1978: Bell 206B (N59600), Morgan City, LA, substantial damage - [NTSB MIA77FA027](https://openairdocs.org/ntsb/MIA77FA027), Jan 27, 1977: Bell 206A (N8159J), Lantana, FL, no damage ## FAA accident and incident reports (32) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20250319002799A](https://openairdocs.org/incident/20250319002799A), Mar 19, 2025: Bell 206B II (N23SD), Dayton, WA, Destroyed, 1 fatal. Pilot failed to observe the power lines suspended accross the valley. - [Incident 20250215003069I](https://openairdocs.org/incident/20250215003069I), Feb 15, 2025: Bell 206B-III (N206BP), Hollywood, FL, No damage. On February 15, 2025 at approximately 1230 pm local time, Bell 206B registered as nxxxx, had an engine chip light annunciation during cruise flight along the… - [Accident 20230611008069A](https://openairdocs.org/incident/20230611008069A), Jun 11, 2023: Bell 206B (N85RB), Pratt, KS, Substantial damage. Having completed first job, the pilot headed for peeryton (kpxy) for refuel. No fuel available. Next he headed to ashland, KS and to commanche co. (K38K) for… - [Accident 20220318020749A](https://openairdocs.org/incident/20220318020749A), Mar 18, 2022: Md Helicopters Inc 369HM (N650AG), West Palm Beach, FL, Destroyed, 2 fatal. Final summary During the investigation, the airman had limited helicopter pilot in command experience And only showed 20.9 hours of solo time in N650AG. The… - [Incident 20220217002049I](https://openairdocs.org/incident/20220217002049I), Feb 17, 2022: Hughes 369HS (N313JP), Miami, FL, Minor damage. Pilot statement: I was flying back towards the airport (ktmb) just before 2:00PM EST approximately 11 miles from tamiami airport slightly northeast near… - [Accident 20211128021709A](https://openairdocs.org/incident/20211128021709A), Nov 28, 2021: Bell 206B (N59600), Perry, OK, Destroyed, 1 fatal. On November 28, 2021, about 1658 central daylight time, a Bell 206B helicopter, N59600, was destroyed when it was involved in an accident near Perry, Oklahoma.… - [Accident 20210325006839A](https://openairdocs.org/incident/20210325006839A), Mar 25, 2021: Hughes 369D (N41AJ), Lake City, KS, Substantial damage. The pilot of the helicopter was flying a strapped in lineman attaching bird diverters to opgw wire (fiber optic cable) with 6-9 knot winds with VMC conditions.… - [Incident 20200806013479I](https://openairdocs.org/incident/20200806013479I), Aug 6, 2020: Bell 206B (N137HS), Paris, IL, Minor damage. The pilot of the helicopter was operating under 14 CFR part 137 while performing arial application. Flying over a field separated by a row of trees, power… - [Accident 20191017020199A](https://openairdocs.org/incident/20191017020199A), Oct 17, 2019: Bell 206B (N167AG), New Salem, NC, Destroyed, 1 fatal. New Salem, NC: N167AG, a B206, conducting crop spraying struck a power line and crashed into a heavily wooded area approximately 34 miles east of charlotte,… - [Accident 20190317001549A](https://openairdocs.org/incident/20190317001549A), Mar 17, 2019: Md Helicopter Inc 369HS (N119T), Newberg, OR, Substantial damage. The PIC stated the low fuel warning light was illuminated prior to takeoff. Approximately six minutes into the accident flight, during straight and level… - [Accident 20190111000179A](https://openairdocs.org/incident/20190111000179A), Jan 11, 2019: Bell 206B (N88HC), Yuma, AZ, Destroyed. [privacy data omitted] Was pilot in command of N88HC, a Bell 206 that was equipped and performing aerial agricultural spraying (part 137) operations. He had… - [Accident 20180115006629A](https://openairdocs.org/incident/20180115006629A), Jan 15, 2018: Md Helicopter Inc 369HM (N4QX), Perrysburg, OH, Destroyed, 2 fatal. On January 15, 2018 at 11:40 EST vista I aircraft N4QX, MD 369HM, was inspecting power lines, when it lost control and crash landed in an open field. At the… - [Accident 20171024014989A](https://openairdocs.org/incident/20171024014989A), Oct 24, 2017: Bell 206B (N60EA), Groom, TX, Substantial damage. October 24, 2017, approximately 1540 local time, N60EA, a Bell 206B helicopter sustained substantial damage during a forced landing after a total loss of… - [Accident 20170706010559A](https://openairdocs.org/incident/20170706010559A), Jul 6, 2017: Bell 206B (N8159J), Dixon, KY, Substantial damage. The part 137 pilot stated he lost track of powerlines while spraying the field. He hit powerlines with the tail rotor and landed the aircraft in a nearby open… - [Incident 20140729012679I](https://openairdocs.org/incident/20140729012679I), Jul 29, 2014: Bell 206B (N59600), Meadows, IL, Minor damage. Aircraft struck power lines - [Accident 20140102000809A](https://openairdocs.org/incident/20140102000809A), Jan 2, 2014: Bell 206B (N400XL), Temple, TX, Substantial damage. On January 2, 2014, at approximately 17:00 hours, a Bell 206B, N400XL owned by engemann aviation services LLC and operated by production air services, crashed… - [Incident 20130912022649I](https://openairdocs.org/incident/20130912022649I), Sep 12, 2013: Md Helicopters Inc 369E (N808JH), Waimea, HI, Minor damage. On September 12, 2013, N808JH was enroute on a 60 minute tour flight that had departed from lihue airport at 0830 HST. The helicopter had just entered the… - [Accident 20120502009059A](https://openairdocs.org/incident/20120502009059A), May 2, 2012: Bell 206B (N85RB), Valley Falls, KS, Substantial damage. Aircraft departed lawrence, KS with one pilot and two passengers on board for the purpose of conducting pipeline patrol operations. According to the pilot's… - [Incident 20111103025279I](https://openairdocs.org/incident/20111103025279I), Nov 3, 2011: Bell 206B (N88HC), Buckeye, AZ, Minor damage. Airman was operating a part 137 aerial agricultural spray application. These operations are frequently conducted on location with support crew and equipment… - [Accident 20100728041539A](https://openairdocs.org/incident/20100728041539A), Jul 28, 2010: Bell 206B (N275RA), St. Olaf, IA, Substantial damage. The aircraft was conducting aerial application when it impacted a power line damaging the helicopter. The damage caused the aircraft to become uncontrollable… - [Accident 20020706021519A](https://openairdocs.org/incident/20020706021519A), Jul 6, 2002: Bell 206B (N60EA), Threerivers, MI, Substantial damage. (.19) On July 6, 2002, at 0945 eastern standard time (EST), Bell 206B, N60EA, piloted by a commercial pilot sustained substantial damage during an emergency… - [Accident 19990909036609A](https://openairdocs.org/incident/19990909036609A), Sep 9, 1999: Bell 206B (N4010G), Nekoosa, WI, Substantial damage. (.19) On September 9, 1999, at 1015 central daylight time, a Bell 206B, N4010G, operated and piloted by a private pilot, sustained substantial damage when it… - [Accident 19980106000159A](https://openairdocs.org/incident/19980106000159A), Jan 6, 1998: Bell 206B (N333FC), Savannah, GA, Substantial damage. (.4)The noninstrument-rated pilot stated he received a weather briefing via computer prior to departure. While approaching his destination he was told the… - [Accident 19910708061249A](https://openairdocs.org/incident/19910708061249A), Jul 8, 1991: Bell 206B (N333FC), Vero Beach, FL, Substantial damage. Reported forced landing due mechanical and passenger hit cyclic exiting. Mechanic reported damaged by hard landing. - [Incident 19900401025179I](https://openairdocs.org/incident/19900401025179I), Apr 1, 1990: Bell 206B (N206BH), Lamesa, CA. Engine overtemp and power loss. Autoratated to parking lot. Blade on NR3 compressor broke off. - [Incident 19891212061929I](https://openairdocs.org/incident/19891212061929I), Dec 12, 1989: Bell 206B (N5743H), Chicago, IL, Minor damage. Engine started with helicopter on towing wheels. Pilot forgot wheels and tailboom swung hitting a parked vehicle. - [Accident 19840406016329A](https://openairdocs.org/incident/19840406016329A), Apr 6, 1984: Bell 206B (N5743H), Farmington, NM, Substantial damage. Loose b nut on fuel line caused air to enter fuel system and a power loss on takeoff. No time to enter autorotation - [Incident 19790929049759I](https://openairdocs.org/incident/19790929049759I), Sep 29, 1979: Bell 206B (N59600), New Orleans, LA, Minor damage. Pilot misjudged a practice autorotation, helicopter damaged in hard landing. - [Incident 19790524027499I](https://openairdocs.org/incident/19790524027499I), May 24, 1979: Bell 206B (N206BH), Baileysville, WV, Minor damage. Helicopter struck power lines, then landed in river. - [Incident 19790311010899I](https://openairdocs.org/incident/19790311010899I), Mar 11, 1979: Bell 206B (N4010G), Morgan City, LA. 2 Blades on nr 1 compressor wheel failed. Eng p n 685334, 1st stage compressor wheel p n 6876651. - [Accident 19780920032991A](https://openairdocs.org/incident/19780920032991A), Sep 20, 1978: Bell 206B1 (N59600), Morgan City, LA, Substantial damage. Contrary to briefing,started engs prior to other acft's departure - [Accident 19770127006542A](https://openairdocs.org/incident/19770127006542A), Jan 27, 1977: Bell 206A (N8159J), Lantana, FL, Minor damage ## Service difficulty reports (945, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2026FA0000472](https://openairdocs.org/sdr/2026FA0000472), May 28, 2026: LOCK NUT. FAILED. MS20143 NUTS ARE UTILIZED TO SECURE WITHIN THE ENGINE ASSEMBLY THE FOLLOWING ARTICLES COMPRESSOR, TURBINE, FUEL CONTROL, GOVERNOR, FUEL PUMP, TACH GENERATORS, G - [SDR EVCA07192021](https://openairdocs.org/sdr/EVCA07192021), Jul 19, 2021: CONTROL UNIT. MALFUNCTIONED. RECENTLY INSTALLED SYSTEM TRUE BLUE BATTERY WAS GETTING A RED TEMP HOT CAUTION LIGHT FOR THE AIRCRAFT BATTERY WHEN THE STARTER BUTTON WAS PRESSED. THE BATTERY W - [SDR QMLA2020052820022](https://openairdocs.org/sdr/QMLA2020052820022), May 26, 2020: DUCT. LOOSE. DURING CRUISE FLIGHT, CREW AND PATIENT COMPLAINED OF CARBON MONOXIDE POISONING SYMPTOMS INCLUDING LIGHT HEADEDNESS, SLEEPINESS AND HEADACHE. HEATER WAS IN OFF P - [SDR QMLA2019112299087](https://openairdocs.org/sdr/QMLA2019112299087), Nov 19, 2019: ENGINE. MAKING METAL. DURING ROUTINE INSPECTION OF ENGINE CHIP DETECTORS FOUND NUMEROUS CHIPS AND DEBRIS ON BOTH UPPER AND LOWER CHIP PLUGS. AMOUNT AND SIZE EXCEEDED ALLOWABLE PER RO - [SDR CA190716009](https://openairdocs.org/sdr/CA190716009), Jun 29, 2019: GYRO. FAULTY. (CAN) IT WAS REPORTED TO BELL:SHORTLY AFTER TAKEOFF, SMOKE STARTED TO FILL THE COCKPIT. THE PILOT TURNED OFF THE BATTERY, OPENED THE SIDE WINDOW, AND MADE AN EM - [SDR 2019FA0000194](https://openairdocs.org/sdr/2019FA0000194), Jun 25, 2019: ENGINE. MAKING METAL. ENGINE CHIP LIGHT ILLUMINATED WHEN ENGINE WAS BROUGHT TO FLIGHT IDLE AFTER ENGINE START UP. MAINTENANCE FOUND 2 FLAKES WITHIN LIMITS ON THE UPPER CHIP PLUG.A 30 - [SDR CA190409008](https://openairdocs.org/sdr/CA190409008), Mar 26, 2019: BLADE. MISMANUFACTURED. (CAN) UPON INSTALLATION OF A SET OF NEW MAIN ROTOR BLADES IT WAS DISCOVERED THE ALIGNMENT PIN WAS MISSING FROM ONE OF THE NEW BLADES. PART NUMBER 206-010-200-15 - [SDR X2RA2018F00000](https://openairdocs.org/sdr/X2RA2018F00000), Dec 14, 2017: FUEL CONTROL. FAILED. PILOT EXPERIENCED DELAYED HOT AND ERRATIC STARTS. FOUND PLAY IN THE POINTER ROD, THIS WOULD AFFECT THE START SCHEDULING. THE SLOP IS WHERE THE POINTER ROD ENGAG - [SDR HDNA20160917012](https://openairdocs.org/sdr/HDNA20160917012), Sep 17, 2016: ENGINE. MAKING METAL. AT CRUISE, THE MAG PLUG 2 WARNING LIGHT ILLUMINATED. REDUCED POWER TO ESTABLISH A SUITABLE OEI CONDITION AND CALLED FOR THE APPLICABLE RFM EMERGENCY PROCEDURE C - [SDR K2DA20160308001](https://openairdocs.org/sdr/K2DA20160308001), Mar 5, 2016: BLADE. DELAMINATED. UPON THE DAILY INSPECTION, A COIN TAP TEST WAS PERFORMED ON THE TAIL ROTOR BLADES. TAIL ROTOR BLADE, PN 500P3100-105, SN C519 WAS DISCOVERED TO BE DELAMINATED. - [SDR 9EK2016F00000](https://openairdocs.org/sdr/9EK2016F00000), Feb 15, 2016: B-NUT. LOOSE. FOUND B-NUT LOOSE ON ENGINE THAT ATTACHES RETURN OIL LINE TO RESERVOIR. LINE DOES NOT HAVE ANY SAFETYING PROVISION. METAL FITTING ASSY WAS FOUND LOOSE NOT HOSE. - [SDR 2016FA0000076](https://openairdocs.org/sdr/2016FA0000076), Feb 9, 2016: BLADE. DELAMINATED. UPON THE DAILY INSPECTION, A COIN TAP TEST WAS PERFORMED ON THE TAIL ROTOR BLADES AND BLADE WAS DISCOVERED TO BE DELAMINATED. THE DELAMINATION CONSISTS OF A 2" - [SDR K2DA20160107001](https://openairdocs.org/sdr/K2DA20160107001), Dec 31, 2015: BLADE. DELAMINATED. DURING DAILY INSPECTION, AFTER THE DAYS FLIGHTS, ONE OF THE TAIL ROTOR BLADES WAS FOUND TO HAVE VARIOUS SPOTS, VARYING IN LENGTH FROM .5 INCHES TO 2 INCHES, WHE - [SDR DCGA2015FA0000622](https://openairdocs.org/sdr/DCGA2015FA0000622), Dec 3, 2015: ENGINE. MAKING METAL. PILOT GOT AN INTERMITTENT ENGINE CHIP LIGHT INDICATION AFTER TAKEOFF AND RETURNED FOR LANDING. MAINTENANCE FOUND LIGHT EXTINGUISHED BUT FOUND METAL ON UPPER AND - [SDR 8MHR2015FA0000422](https://openairdocs.org/sdr/8MHR2015FA0000422), Aug 24, 2015: NOZZLE. FRACTURED. ENGINE WAS REPORTED TO HAVE N1 LOCKUP. ON DISASSEMBLY OF THE TURBINE, FOUND 6 OF THE 8 LOCATING TANGS SEPARATED FROM THE SECOND STAGE NOZZLE. - [SDR QMLA2015081415072](https://openairdocs.org/sdr/QMLA2015081415072), Aug 14, 2015: SKIN. CRACKED. FOUND CRACK IN UPPER AFT FUSELAGE SKIN NEAR THE UPPER LT LONGERON AS DESCRIBED, THE SUBJECT OF AD2015-05-04 & ASB 407-11-95, TB 407-12-96. DURING THE COMPLIANCE - [SDR ALGA0730201536129](https://openairdocs.org/sdr/ALGA0730201536129), Jul 15, 2015: BEARING. WORN. DURING CRUISE FLIGHT ENGINE CHIP LIGHT ILLUMINATED. LANDED ON AN OFFSHORE PLATFORM, EXAMINED CHIP PLUG FOUND METAL PARTICLES. UPON RECOVERY OF AIRCRAFT & SUBSEQ - [SDR K2DA20150602001](https://openairdocs.org/sdr/K2DA20150602001), May 31, 2015: PUMP. FAILED. DURING CRUISE FLIGHT THE MAIN ROTOR TRANSMISSION LOW OIL PRESS LIGHT ELIMINATED. AN UNSCHEDULED PRECAUTIONARY LANDING WAS MADE IN AN OPEN FIELD WITHOUT INCIDENT - [SDR K2DA2015FA0000256](https://openairdocs.org/sdr/K2DA2015FA0000256), May 31, 2015: PUMP. FAILED. DURING CRUISE FLIGHT, THE MAIN ROTOR TRANSMISSION LOW OIL PRESSURE LIGHT ELIMINATED. AN UNSCHEDULED PRECAUTIONARY LANDING WAS MADE IN AN OPEN FIELD WITHOUT INCI - [SDR DCGA2015FA0000217](https://openairdocs.org/sdr/DCGA2015FA0000217), May 19, 2015: TURBINE. OUT OF TOLERANCE. PILOT REPORTED CHIRPING NOISE FROM ENGINE AT END OF DAY SHUTDOWN. MAINTENANCE REMOVED TURBINE ASSY FOR SUSPECT N2 RUBBING. - [SDR QMLA2015041515029](https://openairdocs.org/sdr/QMLA2015041515029), Apr 15, 2015: HEATER. PILOT ERROR. FLIGHT CREW SMELLED HOT PLASTIC IN AFT CABIN AREA WHILE HEATER WAS IN USE. THIS IS AN ELECTRICALLY ACTUATED SYS, OPERATED BY THE PILOT. IF PILOT SELECTED SETTIN - [SDR HDNA201502190004](https://openairdocs.org/sdr/HDNA201502190004), Feb 19, 2015: ENGINE. MAKING METAL. ON STARTUP NR 1 ENG CHIP LIGHT ILLUMINATED. UPON INSPECTION OF CHIP DETECTORS FOUND UPPER DETECTOR TO HAVE EXCESSIVE AMOUNTS OF METAL. R & R TURBINE. - [SDR 2015FA0000049](https://openairdocs.org/sdr/2015FA0000049), Jan 30, 2015: SCISSORS. UNSERVICEABLE. INSTALLED THE O/H SCISSORS LINK AND WAS NOTIFIED BY THE CUSTOMER THAT ON A ROUTINE ALF CHECKS, ON THE ROTATING SCISSORS LINK THAT ABLE ENGINEERING HAD RE-BUSHED - [SDR 2015FA0000003](https://openairdocs.org/sdr/2015FA0000003), Jan 8, 2015: BLADDER. LEAKING. SMALL PUDDLE OF FUEL FOUND ON THE GROUND UNDER THE BELLY OF THE ACFT AT PREFLIGHT. MAINTENANCE FOUND A SMALL PUNCTURE IN THE RT FUEL BLADDER OF AN UNCONFIRMED O - [SDR FTYRN201410180001](https://openairdocs.org/sdr/FTYRN201410180001), Oct 27, 2014: COMBUSTION CASE. CRACKED. NOTED A HIGH TOT INDICATION ON APPROACH TO LAND AT HOME STATION. VISUALLY INSPECTED AND FOUND CRACK IN OUTER COMBUSTION CASE ASSEMBLY. - [SDR CA140903012](https://openairdocs.org/sdr/CA140903012), Aug 24, 2014: BEARING. ROUGH. (CAN) AFTER LANDING AND DURING ENGINE WIND DOWN, A LOUD SQUEAL WAS HEARD COMING FROM THE AFT OF THE HELICOPTER. IT WAS DETERMINED THAT THE NOISE WAS EMANATING F - [SDR K2DA20140701001](https://openairdocs.org/sdr/K2DA20140701001), Jul 1, 2014: PRESSURE SWITCH. FAULTY. MAIN ROTOR TRANSMISSION LOW OIL PRESS LIGHT ILLUMINATED IN FLIGHT PREFORMED PRECAUTIONARY LANDING. TRANSMISSION OIL PRESS SWITCH INOPERATIVE. REPLACED PRESS SWI - [SDR IAVA201406110001](https://openairdocs.org/sdr/IAVA201406110001), May 30, 2014: COMBUSTION CASE. CRACKED. OUTER COMBUSTION CASE CRACKED ON THE RT SIDE UNDER WIRE REINFORCEMENT PATCH. - [SDR K2DA20140427001](https://openairdocs.org/sdr/K2DA20140427001), Apr 27, 2014: SHAFT. WORN. TRANSMISSION OIL PRESS LIGHT DURING FLIGHT. PRECAUTIONARY LANDING PREFORMED. TRANSMISSION OIL PUMP INPUT SHAFT NOT PROPERLY SEATED & WORN. REPLACED INPUT SHAFT - [SDR DCGA2014042500280](https://openairdocs.org/sdr/DCGA2014042500280), Apr 23, 2014: WIRE. SHORTED. PILOT REPORTED AN ENGINE CHIP LIGHT. THE CHIP LIGHT WAS EXTINGUISHED WHEN CHIP PLUGS WERE REMOVED AND CLEANED. DURING OPS CHECKS THE LIGHT CAME BACK ON. MAINTEN - [SDR WO5A2014042100261](https://openairdocs.org/sdr/WO5A2014042100261), Apr 1, 2014: BEARING. FAILED. OPERATOR EXPERIENCED ERRATIC ENGINE OPERATION INCLUDING INABILITY TO LIGHT OFF AS WELL AS UNCOMMANDED INCREASES IN N2 & NR SPEEDS. PILOT REPORTED THAT DURING LA - [SDR CA130812003](https://openairdocs.org/sdr/CA130812003), Aug 10, 2013: BLADE. DAMAGED. (CAN) IN CRUISE FLIGHT THE PILOT NOTICED A CHANGE IN BLADE NOISE, LIKE PLASTIC BAG ON BLADE, WAS APPROXIMATELY 1 MILE FROM THE BASE, SHUTDOWN THE ACFT, AND CHEC - [SDR CA130612006](https://openairdocs.org/sdr/CA130612006), Jun 5, 2013: ECU. FAILED. (CAN) 11 PM LOCAL TIME. THE PILOT MADE A NORMAL OUTBOUND FLIGHT AND SHUTDOWN AT A TRAUMA SCENE. 5 MINUTES INTO A 10 MINUTE RETURN FLIGHT THE FADEC DEGRADE LIGHT - [SDR CA130509006](https://openairdocs.org/sdr/CA130509006), May 9, 2013: ELT. FAILED. (CAN) ELT FAILED POWER OUTPUT TEST FOR 121.5 MHZ AND 406 MHZ. UNIT FLASHED CODE INDICATING LO RF POWER. POWER CONFIRMED WITH BEACON TEST EQUIPMENT. ELT BATTERY - [SDR JBZA20130513003](https://openairdocs.org/sdr/JBZA20130513003), May 7, 2013: BLADE. DAMAGED. WHILE ENROUTE, ACFT HAD A BIRD STRIKE AT THE MAIN ROTOR SYS CAUSING A VIBRATION. CREW MADE A PRECAUTIONARY LANDING AT THE NEAREST AIRPORT. AFTER SHUTDOWN, PILOT - [SDR CA130502011](https://openairdocs.org/sdr/CA130502011), May 2, 2013: GEARBOX. MAKING METAL. (CAN) ENGINE GEARBOX WAS O/H 7.6 HRS IN SERVICE AND THE PILOT REPORTED AN ENGINE CHIP LIGHT. UPON FURTHER INVESTIGATION OF THE CHIP PLUG, IT APPEARS TO BE A DRI - [SDR AQH2013F00000](https://openairdocs.org/sdr/AQH2013F00000), Mar 11, 2013: STARTER GEN. FAILED. DURING NORMAL FLIGHT, THE PILOT REPORTED THE GENERATOR FAILED. THE HELICOPTER LANDED WITHOUT INCIDENT. SUBSEQUENT INVESTIGATION BY THE PILOT INDICATED THE START - [SDR 2013FA0000553](https://openairdocs.org/sdr/2013FA0000553), Jan 22, 2013: BULKHEAD. CRACKED. BULKHEAD CRACKED IN LT AFT GEARBOX ATTACHMENT HOLE. CRACKING FOUND VISUALLY DURING CORROSION INSPECTION. - [SDR CA130110005](https://openairdocs.org/sdr/CA130110005), Jan 9, 2013: GOVERNOR. MALFUNCTIONED. (CAN) PREFLIGHT INSPECTION OF ACFT REVEALED GOVERNOR BIASING SHAFT, PN 206-062-717-1, ON TRANSMISSION DECK TWISTED AT SHEAR POINT. LINEAR ACTUATOR ARM REMOVED A - [SDR CA130109010](https://openairdocs.org/sdr/CA130109010), Jan 7, 2013: HOUSING. FAILED. (CAN) THE BEARING HOUSING WAS REMOVED FROM COMPRESSOR ASSEMBLY DUE TO LOW POWER, AND WAS INDUCTED INTO THE SHOP. BEARING HOUSING AND NUT, WITH SHEARED PORTION O - [SDR 2013FA0000552](https://openairdocs.org/sdr/2013FA0000552), Dec 17, 2012: BULKHEAD. CRACKED. BULKHEAD CRACKED IN LT AFT GEARBOX ATTACHMENT HOLE. CRACKING WAS FOUND VISUALLY DURING CORROSION INSPECTION. - [SDR CA121205011](https://openairdocs.org/sdr/CA121205011), Dec 5, 2012: ELT. MALFUNCTIONED. (CAN) DURING THE SELF TEST OF THE ELT USING THE REMOTE SWITCH THE SYSTEM RESPONDED WITH AN ERROR CODE OF 3+2 FLASHES INDICATING A LOW RF POWER FAULT. FAULT WAS - [SDR CA121203008](https://openairdocs.org/sdr/CA121203008), Dec 1, 2012: HEATER. SHORTED. (CAN) SHROUD HEATER NOT WORKING. HEATER CIRCUIT BREAKER TRIPPED. HEATER MOTOR ROUGH TO TURN AND SHORTING OUT INTERNALLY. MOTOR REPLACED. - [SDR CA121023008](https://openairdocs.org/sdr/CA121023008), Oct 19, 2012: ENCODER. FAILED. (CAN) ATC REPORTED THAT ACFT WAS NOT REPORTING MODE C. INSPECTION OF ENCODER FOUND WATER ON THE CIRCUIT BOARD WHICH LEAD TO A SHORT. ENCODER REPLACED. MAINTENAN - [SDR CA121010010](https://openairdocs.org/sdr/CA121010010), Oct 10, 2012: PIN. FAILED. (CAN) WHILE DOING PREFLIGHT CHECKS FOR A TRAINING FLIGHT WITH DUAL PILOTS AND DUAL CONTROLS INSTALLED, TRAINING PILOT WAS IN THE LT SEAT DURING START-UP. ONCE A - [SDR CA120905008](https://openairdocs.org/sdr/CA120905008), Sep 5, 2012: DRIVE SHAFT. OVERTEMP. (CAN) DURING 100 HR INSPECTION THE DRIVESHAFT TELI-TEMP INDICATORS SHOWED DRIVESHAFT COUPLING WAS OVERTEMPED. DRIVESHAFT RAN 151 HOURS SINCE LAST O/H. - [SDR CA120905010](https://openairdocs.org/sdr/CA120905010), Sep 5, 2012: STARTER GEN. NOISY. (CAN) NOISE IN ACFT AUDIO SYS WHEN STARTER GENERATOR SWITCHED ON. STARTER GENERATOR REPLACED. - [SDR K2DA201209070502](https://openairdocs.org/sdr/K2DA201209070502), Sep 2, 2012: ENGINE. WARNING LIGHT. ENGINE CHIP LIGHT ILLUMINATED DURING FLIGHT. PRECAUTIONARY LANDING PERFORMED AND ENGINE SHUTDOWN. MX DISPATCHED WITH COMPANY ACFT AND PASSENGERS WERE FLOWN FOR - [SDR CA120905012](https://openairdocs.org/sdr/CA120905012), Aug 25, 2012: FUEL CONTROL. FAILED. (CAN) DURING START, ALL NRS AND TEMPERATURES WERE NORMAL AT 40 PERCENT N1 ENGINE FLAMED OUT AS IF FUEL WAS CUTOFF. FUEL CONTROL REPLACED. - [SDR CA120905009](https://openairdocs.org/sdr/CA120905009), Aug 23, 2012: GOVERNOR. MALFUNCTIONED. (CAN) GOVERNOR WILL NOT RECOVER FROM OVERSPEED WHEN COLLECTIVE DECREASED. All 945: https://openairdocs.org/engine/rolls-royce-250-c20/reports.md ## STCs that may be installed (OpenAirDocs) (6) 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 SE5511NM](https://openairdocs.org/stc/SE5511NM): Installation of compressor discharge pressue (PC) valve. Bell Helicopter Textron Inc - [STC SE769NW](https://openairdocs.org/stc/SE769NW): Installation of Soloy Part No. 250-1001-1 fuel line. Siam Hiller Holdings Inc - [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 - [STC SE492GL](https://openairdocs.org/stc/SE492GL): Incorporation of a fuel flow transducer. Shadin Avionics - [STC ST00037AT](https://openairdocs.org/stc/ST00037AT): Unison igniter plugs, P/N 9044400-1. Unison Industries - [STC SQ00338AT](https://openairdocs.org/stc/SQ00338AT): Unison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106. Unison Industries --- 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.