# Rolls-Royce 250-C20B

- Type: Engine model (FAA registry)
- Registry code: 54385
- Manufacturer (registry): ROLLS-ROYC
- Model: 250-C20B
- Engine type: Turbo-shaft
- Power: 420 hp
- Data sheet: [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs)
- Holder: Rolls-Royce Corporation
- Installed in: 215 registered aircraft
- Page: https://openairdocs.org/engine/rolls-royce-250-c20b

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

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

## Registered aircraft (215, first 50)

- [N100AT](https://openairdocs.org/aircraft/N100AT): [Western Pacific Fisheries](https://openairdocs.org/faa-owner/WESTERN%20PACIFIC%20FISHERIES), [Hermosa Beach, CA](https://openairdocs.org/faa-place/CA/Hermosa%20Beach), built 1980, S/N 500718D
- [N104SU](https://openairdocs.org/aircraft/N104SU): [Signature Property Holdings LLC](https://openairdocs.org/faa-owner/SIGNATURE%20PROPERTY%20HOLDINGS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1977, S/N 670151D
- [N105AC](https://openairdocs.org/aircraft/N105AC): [Agricultural Air Services LLC](https://openairdocs.org/faa-owner/AGRICULTURAL%20AIR%20SERVICES%20LLC), [Jupiter, FL](https://openairdocs.org/faa-place/FL/Jupiter), built 1978, S/N 580316D
- [N105GK](https://openairdocs.org/aircraft/N105GK): [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 1980, S/N S-458
- [N106SU](https://openairdocs.org/aircraft/N106SU): [Signature Property Holdings LLC](https://openairdocs.org/faa-owner/SIGNATURE%20PROPERTY%20HOLDINGS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1981, S/N 510954D
- [N1078Q](https://openairdocs.org/aircraft/N1078Q): [Aris Leasing Inc](https://openairdocs.org/faa-owner/ARIS%20LEASING%20INC), [Sunnyvale, CA](https://openairdocs.org/faa-place/CA/Sunnyvale), built 1978, S/N 2425
- [N108DR](https://openairdocs.org/aircraft/N108DR): [Paramount International Inc](https://openairdocs.org/faa-owner/PARAMOUNT%20INTERNATIONAL%20INC), [Millville, NJ](https://openairdocs.org/faa-place/NJ/Millville), built 1976, S/N 1875
- [N108PP](https://openairdocs.org/aircraft/N108PP): [City Of Pomona](https://openairdocs.org/faa-owner/CITY%20OF%20POMONA), [Pomona, CA](https://openairdocs.org/faa-place/CA/Pomona), built 2008, S/N 0578E
- [N109RA](https://openairdocs.org/aircraft/N109RA): [Sunny Sky LLC](https://openairdocs.org/faa-owner/SUNNY%20SKY%20LLC), [Stacyville, IA](https://openairdocs.org/faa-place/IA/Stacyville), built 1979, S/N 2741
- [N109WG](https://openairdocs.org/aircraft/N109WG): [Dodson International Parts Inc](https://openairdocs.org/faa-owner/DODSON%20INTERNATIONAL%20PARTS%20INC), [Rantoul, KS](https://openairdocs.org/faa-place/KS/Rantoul), S/N 7316
- [N10MS](https://openairdocs.org/aircraft/N10MS): [Kas Enterprises LLC](https://openairdocs.org/faa-owner/KAS%20ENTERPRISES%20LLC), [Lewes, DE](https://openairdocs.org/faa-place/DE/Lewes), built 1980, S/N 3208
- [N1102D](https://openairdocs.org/aircraft/N1102D): [Aviation Advantage Inc](https://openairdocs.org/faa-owner/AVIATION%20ADVANTAGE%20INC), [Tabor City, NC](https://openairdocs.org/faa-place/NC/Tabor%20City), built 1980, S/N 900806D
- [N110WG](https://openairdocs.org/aircraft/N110WG): [Meshoppen Air LLC](https://openairdocs.org/faa-owner/MESHOPPEN%20AIR%20LLC), [Tunkhannock, PA](https://openairdocs.org/faa-place/PA/Tunkhannock), built 1978, S/N 2367
- [N111AD](https://openairdocs.org/aircraft/N111AD): [Svp LLC](https://openairdocs.org/faa-owner/SVP%20LLC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 1980, S/N 400704D
- [N1128S](https://openairdocs.org/aircraft/N1128S): [Aerial Organics LLC](https://openairdocs.org/faa-owner/AERIAL%20ORGANICS%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1980, S/N 5009
- [N122BT](https://openairdocs.org/aircraft/N122BT): [North Wind Aviation LLC](https://openairdocs.org/faa-owner/NORTH%20WIND%20AVIATION%20LLC), [Cottage Grove, OR](https://openairdocs.org/faa-place/OR/Cottage%20Grove), built 1989, S/N 4053
- [N125KW](https://openairdocs.org/aircraft/N125KW): [Aurora Aviation Services Inc](https://openairdocs.org/faa-owner/AURORA%20AVIATION%20SERVICES%20INC), [Delta Junction, AK](https://openairdocs.org/faa-place/AK/Delta%20Junction), built 1989, S/N 0336E
- [N128GC](https://openairdocs.org/aircraft/N128GC): [Cga Holdings LLC](https://openairdocs.org/faa-owner/CGA%20HOLDINGS%20LLC), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), built 1979, S/N 6006
- [N12AT](https://openairdocs.org/aircraft/N12AT): [Custom Cub LLC](https://openairdocs.org/faa-owner/CUSTOM%20CUB%20LLC), [Keizer, OR](https://openairdocs.org/faa-place/OR/Keizer), built 1974, S/N 1329
- [N131AL](https://openairdocs.org/aircraft/N131AL): [Quicksilver Air Inc](https://openairdocs.org/faa-owner/QUICKSILVER%20AIR%20INC), [Fairbanks, AK](https://openairdocs.org/faa-place/AK/Fairbanks), built 1977, S/N 1170230D
- [N133EH](https://openairdocs.org/aircraft/N133EH): [Red Bull North America Inc](https://openairdocs.org/faa-owner/RED%20BULL%20NORTH%20AMERICA%20INC), [Camarillo, CA](https://openairdocs.org/faa-place/CA/Camarillo), built 1982, S/N S-598
- [N133WH](https://openairdocs.org/aircraft/N133WH): [Four Creeks Aviation Inc](https://openairdocs.org/faa-owner/FOUR%20CREEKS%20AVIATION%20INC), [Visalia, CA](https://openairdocs.org/faa-place/CA/Visalia), built 1973, S/N 1788
- [N138LH](https://openairdocs.org/aircraft/N138LH): [Helilease LLC](https://openairdocs.org/faa-owner/HELILEASE%20LLC), [Lewes, DE](https://openairdocs.org/faa-place/DE/Lewes), built 1989, S/N 4063
- [N13FB](https://openairdocs.org/aircraft/N13FB): [Firebird Holdings LLC](https://openairdocs.org/faa-owner/FIREBIRD%20HOLDINGS%20LLC), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), S/N 118
- [N13TZ](https://openairdocs.org/aircraft/N13TZ): [Aerospace Trust Management LLC Trustee](https://openairdocs.org/faa-owner/AEROSPACE%20TRUST%20MANAGEMENT%20LLC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), S/N S550
- [N147AG](https://openairdocs.org/aircraft/N147AG): [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 1980, S/N 3145
- [N154EH](https://openairdocs.org/aircraft/N154EH): [Redbull North America Inc](https://openairdocs.org/faa-owner/REDBULL%20NORTH%20AMERICA%20INC), [Camarillo, CA](https://openairdocs.org/faa-place/CA/Camarillo), built 1985, S/N S-704
- [N160JA](https://openairdocs.org/aircraft/N160JA): [Ag-Air Inc](https://openairdocs.org/faa-owner/AG-AIR%20INC), [Brent Alger, CA](https://openairdocs.org/faa-place/CA/Brent%20Alger), S/N 391
- [N167AL](https://openairdocs.org/aircraft/N167AL): [Ferguson And Sons Construction LLC](https://openairdocs.org/faa-owner/FERGUSON%20AND%20SONS%20CONSTRUCTION%20LLC), [Emmett, ID](https://openairdocs.org/faa-place/ID/Emmett), built 1977, S/N 270083D
- [N1751](https://openairdocs.org/aircraft/N1751): [Gm Leasing Co LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20CO%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), built 1981, S/N 3284
- [N175JL](https://openairdocs.org/aircraft/N175JL): [Ratcliff Dustin](https://openairdocs.org/faa-owner/RATCLIFF%20DUSTIN), [Saltville, VA](https://openairdocs.org/faa-place/VA/Saltville), built 1977, S/N 270076D
- [N17NR](https://openairdocs.org/aircraft/N17NR): [Trans 5 Investments LLC](https://openairdocs.org/faa-owner/TRANS%205%20INVESTMENTS%20LLC), [Saint Martinville, LA](https://openairdocs.org/faa-place/LA/Saint%20Martinville), built 1972, S/N 786
- [N182AA](https://openairdocs.org/aircraft/N182AA): [Industrial Helicopters LLC](https://openairdocs.org/faa-owner/INDUSTRIAL%20HELICOPTERS%20LLC), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), built 1979, S/N 2752
- [N187GS](https://openairdocs.org/aircraft/N187GS): [Port Michael J](https://openairdocs.org/faa-owner/PORT%20MICHAEL%20J), [Twisp, WA](https://openairdocs.org/faa-place/WA/Twisp), built 1978, S/N 27-0280
- [N192VS](https://openairdocs.org/aircraft/N192VS): [Vertol Systems Company Inc](https://openairdocs.org/faa-owner/VERTOL%20SYSTEMS%20COMPANY%20INC), [Destin, FL](https://openairdocs.org/faa-place/FL/Destin), built 1980, S/N 1000786D
- [N193VS](https://openairdocs.org/aircraft/N193VS): [Vertol Systems Co Inc](https://openairdocs.org/faa-owner/VERTOL%20SYSTEMS%20CO%20INC), [Destin, FL](https://openairdocs.org/faa-place/FL/Destin), built 1981, S/N 110882D
- [N195VS](https://openairdocs.org/aircraft/N195VS): [Vertol Systems Co Inc](https://openairdocs.org/faa-owner/VERTOL%20SYSTEMS%20CO%20INC), [Destin, FL](https://openairdocs.org/faa-place/FL/Destin), built 1981, S/N 110826D
- [N196VS](https://openairdocs.org/aircraft/N196VS): [Vertol Systems Company Inc](https://openairdocs.org/faa-owner/VERTOL%20SYSTEMS%20COMPANY%20INC), [Destin, FL](https://openairdocs.org/faa-place/FL/Destin), built 1980, S/N 900787D
- [N2044C](https://openairdocs.org/aircraft/N2044C): [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 1981, S/N 3363
- [N204AV](https://openairdocs.org/aircraft/N204AV): [San Juan Aviation LLC](https://openairdocs.org/faa-owner/SAN%20JUAN%20AVIATION%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1969, S/N 158
- [N20683](https://openairdocs.org/aircraft/N20683): [Cascade Helicopters LLC](https://openairdocs.org/faa-owner/CASCADE%20HELICOPTERS%20LLC), [Canby, OR](https://openairdocs.org/faa-place/OR/Canby), built 1985, S/N 3878
- [N2068A](https://openairdocs.org/aircraft/N2068A): [Aerial Control Inc](https://openairdocs.org/faa-owner/AERIAL%20CONTROL%20INC), [Brentwood, CA](https://openairdocs.org/faa-place/CA/Brentwood), built 1981, S/N 3400
- [N206AJ](https://openairdocs.org/aircraft/N206AJ): [Vertical Air LLC](https://openairdocs.org/faa-owner/VERTICAL%20AIR%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1972, S/N 878
- [N206BM](https://openairdocs.org/aircraft/N206BM): [Wg Northland LLC](https://openairdocs.org/faa-owner/WG%20NORTHLAND%20LLC), [Seeley Lake, MT](https://openairdocs.org/faa-place/MT/Seeley%20Lake), built 2000, S/N 4537
- [N206CH](https://openairdocs.org/aircraft/N206CH): [Northwest Helicopters I Inc](https://openairdocs.org/faa-owner/NORTHWEST%20HELICOPTERS%20I%20INC), [Olympia, WA](https://openairdocs.org/faa-place/WA/Olympia), built 1975, S/N 1735
- [N206GL](https://openairdocs.org/aircraft/N206GL): [Rotorwings Aviation LLC](https://openairdocs.org/faa-owner/ROTORWINGS%20AVIATION%20LLC), [Hebron, NE](https://openairdocs.org/faa-place/NE/Hebron), S/N 2929
- [N206PL](https://openairdocs.org/aircraft/N206PL): [Aerial Control Inc](https://openairdocs.org/faa-owner/AERIAL%20CONTROL%20INC), [Brentwood, CA](https://openairdocs.org/faa-place/CA/Brentwood), built 1985, S/N 3902
- [N206RM](https://openairdocs.org/aircraft/N206RM): [Padgett Farms And Forestry LLC](https://openairdocs.org/faa-owner/PADGETT%20FARMS%20AND%20FORESTRY%20LLC), [Milan, GA](https://openairdocs.org/faa-place/GA/Milan), built 1974, S/N 1566
- [N206TG](https://openairdocs.org/aircraft/N206TG): [Gallien Anthony](https://openairdocs.org/faa-owner/GALLIEN%20ANTHONY), [Livermore, CA](https://openairdocs.org/faa-place/CA/Livermore), built 1979, S/N 2610
- [N206VL](https://openairdocs.org/aircraft/N206VL): [Malahaide Investments Inc](https://openairdocs.org/faa-owner/MALAHAIDE%20INVESTMENTS%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1978, S/N 2389

All 215: https://openairdocs.org/engine/rolls-royce-250-c20b/aircraft.md

## NTSB investigations (73, 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 CEN26LA264](https://openairdocs.org/ntsb/CEN26LA264), Jul 17, 2026: Bell 206B (N297CA), Saint Joseph, IL, substantial damage, investigation ongoing
- [NTSB WPR26LA188](https://openairdocs.org/ntsb/WPR26LA188), May 14, 2026: Mcdonnell Douglas Helicopter 500 (N952SF), Twin Falls, ID, substantial damage. Probable cause: The pilot’s failure to maintain control while hovering in gusty wind conditions, resulting in the helicopter rolling onto its side.
- [NTSB ERA26LA097](https://openairdocs.org/ntsb/ERA26LA097), Jan 22, 2026: Hughes 369 (N105AC), North Augusta, SC, substantial damage, investigation ongoing
- [NTSB ERA25LA338](https://openairdocs.org/ntsb/ERA25LA338), Sep 10, 2025: Bell 206 (N992MR), Monroe, GA, destroyed, investigation ongoing
- [NTSB CEN25LA292](https://openairdocs.org/ntsb/CEN25LA292), Jul 27, 2025: Bell 206B (N432TV), North Bend, NE, substantial damage. Probable cause: The pilot’s failure to maintain clearance from wires while maneuvering at a low altitude, and the ground crew failure to inform the pilot that the support truck had been moved.
- [NTSB WPR25FA190](https://openairdocs.org/ntsb/WPR25FA190), Jun 25, 2025: MD Helicopters 369E (N411WJ), Meeker, CO, substantial damage, 1 fatal, investigation ongoing
- [NTSB CEN24LA358](https://openairdocs.org/ntsb/CEN24LA358), Sep 11, 2024: Hughes 369 (N8969F), Canton, MI, substantial damage. Probable cause: Fatigue cracking of the main rotor blade that occurred at an undetermined time.
- [NTSB CEN24LA276](https://openairdocs.org/ntsb/CEN24LA276), Jul 21, 2024: Bell 206 (N26UK), Cornland, IL, substantial damage. Probable cause: The pilot was unable to see a wire due to the setting sun and the helicopter subsequently struck the wire.
- [NTSB WPR24LA243](https://openairdocs.org/ntsb/WPR24LA243), Jul 13, 2024: Mcdonnell Douglas Helicopter 369E (N473E), Cottonwood, AZ, substantial damage. Probable cause: The pilot’s low-speed, high-power maneuvering in high density altitude and near maximum gross weight, which resulted in an uncommanded right yaw due to a loss of tail rotor effectiveness and a…
- [NTSB ANC24LA017](https://openairdocs.org/ntsb/ANC24LA017), Feb 27, 2024: MD Helicopter 369E/500E (N633JH), Kekaha, HI, substantial damage. Probable cause: Maintenance personnel’s noncompliance with maintenance manual procedures that required the removal of the overrunning clutch output bearing during the regreasing procedure, which resulted in…
- [NTSB ANC24LA016](https://openairdocs.org/ntsb/ANC24LA016), Feb 20, 2024: Hughes 369D (N690WA), Hana, HI, substantial damage. Probable cause: The pilot’s failure to ensure the passenger’s gear was properly secured before departure.
- [NTSB ERA23LA326](https://openairdocs.org/ntsb/ERA23LA326), Aug 5, 2023: Hughes 369 (N353AH), Elberon, VA, substantial damage. Probable cause: The pilot’s failure to maintain clearance from a power line structure arm, which resulted in main rotor blade contact.
- [NTSB CEN23LA342](https://openairdocs.org/ntsb/CEN23LA342), Jul 30, 2023: Bell 206B (N231RL), Denison, IA, substantial damage, 1 fatal. Probable cause: The pilot’s inflight distraction, which resulted in his failure to see and avoid wires.
- [NTSB CEN23LA308](https://openairdocs.org/ntsb/CEN23LA308), Jul 13, 2023: Hughes 369D (N533DR), Atchison, KS, substantial damage. Probable cause: The pilot’s failure to adequately survey a field for obstructions prior to a low-level aerial application pass, which resulted in an impact with a powerline.
- [NTSB ERA23LA295](https://openairdocs.org/ntsb/ERA23LA295), Jun 25, 2023: Bell Helicopter Textron 206B (N919AC), Sandersville, GA, substantial damage. Probable cause: The pilot’s failure to maintain clearance of trees during landing, which resulted in a tail rotor contact with tree limbs and a subsequent loss of control.
- [NTSB WPR23LA063](https://openairdocs.org/ntsb/WPR23LA063), Dec 8, 2022: Hughes 369D (N458HW), La Sal, UT, substantial damage. Probable cause: The pilot’s failure to maintain clearance from terrain during a toe-in landing to sloping terrain which resulted in a loss of helicopter control.
- [NTSB ERA22LA192](https://openairdocs.org/ntsb/ERA22LA192), Apr 18, 2022: Bell Helicopter Textron 206B (N919AC), Cedar Key, FL, substantial damage. Probable cause: The pilot’s improper fuel planning during agricultural spraying operations, which resulted in fuel starvation, a loss of engine power, and a hard landing following an autorotation.
- [NTSB WPR22LA078](https://openairdocs.org/ntsb/WPR22LA078), Dec 21, 2021: Hughes 369D (N111AD), Strawberry, AZ, substantial damage. Probable cause: The pilot’s failure to maintain clearance from a static wire during approach.
- [NTSB WPR21LA354](https://openairdocs.org/ntsb/WPR21LA354), Sep 23, 2021: Hiller UH-12E (N5334V), Bovill, ID, substantial damage. Probable cause: A loss of helicopter control for undetermined reasons based on the available evidence for this accident.
- [NTSB ANC21LA083](https://openairdocs.org/ntsb/ANC21LA083), Sep 7, 2021: Mcdonnell Douglas Helicopter 369E (N125KW), Delta Junction, AK, substantial damage. Probable cause: The pilot’s inability to maintain lateral control during the takeoff, which resulted in dynamic rollover. Contributing to the accident was the pilot’s decision to utilize an unsuitable landing area…
- [NTSB ANC21LA003](https://openairdocs.org/ntsb/ANC21LA003), Oct 27, 2020: Hughes 369 (N58251), Honolulu, HI, substantial damage. Probable cause: A partial loss of engine power due to an obstructed fuel line as a result of the separation of the circlip from the pin used on the fuel start pump. The reason for the circlip separation could not be…
- [NTSB CEN20CA334](https://openairdocs.org/ntsb/CEN20CA334), Aug 5, 2020: Hughes 369 (N104SU), Delia, KS, substantial damage. Probable cause: Foreign object damage sustained to the main rotor blades due to aerial tree trimming.
- [NTSB CEN20LA167](https://openairdocs.org/ntsb/CEN20LA167), May 2, 2020: MD Helicopter 369 (N8375F), Houston, TX, substantial damage, 1 fatal. Probable cause: An uncommanded right yaw that occurred for reasons that could not be determined based on the available evidence, which resulted in a loss control.
- [NTSB CEN19LA207](https://openairdocs.org/ntsb/CEN19LA207), Jul 5, 2019: Md Helicopter 369 (N5277F), Houston, TX, substantial damage. Probable cause: The loss of control upon landing for undetermined reasons.
- [NTSB GAA19CA278](https://openairdocs.org/ntsb/GAA19CA278), May 23, 2019: Bell 206 (N158H), Pittsfield, IL, substantial damage. Probable cause: The pilot's failure to maintain clearance from rising terrain during agricultural application operations.
- [NTSB WPR19LA122](https://openairdocs.org/ntsb/WPR19LA122), Apr 26, 2019: Bell 206 (N206JH), Oakridge, OR, substantial damage. Probable cause: A total loss of engine power following the failure of a 3rd stage turbine blade due to low- and high-cycle fatigue.
- [NTSB WPR19FA109](https://openairdocs.org/ntsb/WPR19FA109), Apr 16, 2019: Bell 206 (N61PH), Fort McDowell, AZ, destroyed, 2 fatal. Probable cause: The separation of the main rotor head from the mast as a result of a sudden displacement of the cyclic stick during a low-G maneuver, leading to mast bumping. Contributing to the accident were the…
- [NTSB ERA19FA118](https://openairdocs.org/ntsb/ERA19FA118), Mar 5, 2019: Hughes 369 (N89ZC), Talking Rock, GA, substantial damage, 1 fatal. Probable cause: A fatigue failure of the overrunning clutch subassembly due to abnormal bending loads due to cracks on the center engine mount, which resulted in an inflight loss of power. Contributing to the…
- [NTSB GAA18CA506](https://openairdocs.org/ntsb/GAA18CA506), Aug 22, 2018: Hughes 369 (N89ZC), Ridgeway, PA, substantial damage. Probable cause: The pilot's failure to maintain clearance from power lines during an aerial observation flight.
- [NTSB WPR18LA221](https://openairdocs.org/ntsb/WPR18LA221), Aug 8, 2018: Hughes 369 (N369MH), Honolulu, HI, substantial damage. Probable cause: The operator's improper installation of the tail rotor (TR) teeter bearings, which resulted in cascading in-flight failures of the TR components and attach hardware.
- [NTSB WPR18FA188](https://openairdocs.org/ntsb/WPR18FA188), Jul 4, 2018: Hughes 369 (N8648F), Majuro, destroyed, 2 fatal. Probable cause: The pilot's failure to maintain clearance above the surface of the ocean.
- [NTSB CEN18FA182](https://openairdocs.org/ntsb/CEN18FA182), May 20, 2018: MD Helicopter 369D (N362JS), Luling, LA, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain clearance from the powerline structure while hovering, which resulted in an inadvertent collision with the structure and an uncontrolled descent into terrain.
- [NTSB GAA18CA249](https://openairdocs.org/ntsb/GAA18CA249), Apr 29, 2018: Hughes 369 (N175JL), Newark, OH, substantial damage. Probable cause: The pilot’s failure to maintain adequate clearance from transmission power wires, which resulted in a tail rotor strike.
- [NTSB CEN18LA121](https://openairdocs.org/ntsb/CEN18LA121), Mar 7, 2018: Hughes 369D (N499SL), Blair, WI, no damage. Probable cause: The pilot’s failure to recognize and compensate for hazards during the external load operation, which led to a collision between a lineman (external load) and a powerline.
- [NTSB WPR17LA113](https://openairdocs.org/ntsb/WPR17LA113), May 26, 2017: Bell 206B (N24FS), Rockville, ID, substantial damage. Probable cause: The in-flight failure of the engine-to-transmission drive shaft due to a fatigue fracture of one of the KAflex flex frames caused by a loose bolt, which resulted in a total loss of engine power and a…
- [NTSB WPR17LA071](https://openairdocs.org/ntsb/WPR17LA071), Mar 1, 2017: Bell 206B (N211CS), Firebaugh, CA, substantial damage. Probable cause: A total loss of engine power due to fuel exhaustion. Contributing to the accident was the improper calibration of the fuel quantity gauge, which led the pilot to believe that there was adequate fuel…
- [NTSB GAA16CA480](https://openairdocs.org/ntsb/GAA16CA480), Sep 9, 2016: Hughes 369 (N500TN), Peach Orchard, MO, substantial damage. Probable cause: The helicopter pilot’s failure to maintain sufficient separation between the main rotor blade and a power line during line guard installation, which resulted in an electrical arc to the main rotor.
- [NTSB GAA16CA405](https://openairdocs.org/ntsb/GAA16CA405), Jul 29, 2016: Bell 206 (N1087N), Outlook, WA, destroyed. Probable cause: The pilot and ground crew's failure to visually inspect the helicopter's skids before takeoff, which resulted in a water hose becoming entangled on the right skid, a loss of control, an impact with…
- [NTSB GAA16CA168](https://openairdocs.org/ntsb/GAA16CA168), Mar 26, 2016: Hughes 369 (N721RP), Jamestown, ND, substantial damage. Probable cause: The pilot's excessive descent rate while flaring during a practice autorotation with a power recovery, which resulted in an impact with terrain.
- [NTSB WPR16LA021](https://openairdocs.org/ntsb/WPR16LA021), Nov 3, 2015: MD Helicopter 369D (N510PA), Sedro-Woolley, WA, substantial damage. Probable cause: The loss of engine power due to fuel starvation as a result of naphthenate fuel contamination, which blocked the fuel flow through the start pump.
- [NTSB WPR16LA020](https://openairdocs.org/ntsb/WPR16LA020), Nov 2, 2015: Bell 206B (N22743), Dallas, OR, substantial damage. Probable cause: A loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN14LA398](https://openairdocs.org/ntsb/CEN14LA398), Jul 29, 2014: Hughes 369D (N89ZC), West Liberty, OH, substantial damage. Probable cause: A total loss of engine power, which resulted from fuel exhaustion due to the pilot’s failure to adequately monitor the fuel quantity during the flight.
- [NTSB CEN14LA390](https://openairdocs.org/ntsb/CEN14LA390), Jul 26, 2014: Bell 206B (N240SJ), Bennet, NE, substantial damage. Probable cause: A total loss of engine power due to fuel contamination, which resulted from the pilot’s inadequate preflight inspection. Contributing to the accident was the operator’s failure to properly maintain…
- [NTSB WPR14CA319](https://openairdocs.org/ntsb/WPR14CA319), Jul 19, 2014: Bell 206B (N291SH), Salinas, CA, substantial damage. Probable cause: The pilot's failure to ensure adequate clearance from ground obstacles during takeoff which resulted in loss of aircraft control.
- [NTSB ANC13LA074](https://openairdocs.org/ntsb/ANC13LA074), Aug 6, 2013: Hughes 500D (N134SH), Delta Junction, AK, substantial damage. Probable cause: A total loss of engine power for undetermined reasons, which necessitated an emergency hovering autorotation, during which the helicopter impacted trees and terrain.
- [NTSB CEN13WA329](https://openairdocs.org/ntsb/CEN13WA329), Jun 7, 2013: Bell 206B (N207JA), San Luis Potosí, Mexico, substantial damage, 4 fatal
- [NTSB CEN13LA378](https://openairdocs.org/ntsb/CEN13LA378), May 24, 2013: Bell 206B (N297CA), St Louis, MO, substantial damage. Probable cause: The loss of engine power due to the separation of compressor blades, which resulted from fatigue cracking.
- [NTSB WPR13CA204](https://openairdocs.org/ntsb/WPR13CA204), Apr 20, 2013: Bell 206B (N4237M), Wells, NV, substantial damage. Probable cause: The pilot's failure to maintain clearance from an obstacle while maneuvering at a low altitude.
- [NTSB CEN13LA158](https://openairdocs.org/ntsb/CEN13LA158), Feb 11, 2013: Bell 206B III (N360AW), Ponderosa, NM, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined because the postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal…
- [NTSB WPR13FA080](https://openairdocs.org/ntsb/WPR13FA080), Jan 2, 2013: Bell 206 (N828AC), Delano, CA, destroyed, 1 fatal. Probable cause: The pilot's failure to maintain helicopter control due to spatial disorientation while maneuvering in low visibility, dark night conditions.

All 73: https://openairdocs.org/engine/rolls-royce-250-c20b/ntsb.md

## FAA accident and incident reports (79, newest 50)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20260716007599A](https://openairdocs.org/incident/20260716007599A), Jul 16, 2026: Bell 206B (N297CA), St Joseph, IL, Destroyed. On July 16, 2026, at approximately 1915 local time, a Bell 206 helicopter was involved in an accident while conducting 14 CFR part 137 agricultural spraying…
- [Accident 20260514007189A](https://openairdocs.org/incident/20260514007189A), May 14, 2026: Mcdonnell Douglas Helicopter 369E (N952SF), Twin Falls, ID, Destroyed. Pilot was hovering in the grass area and wanted to set down the aircraft before departure. Pilot stated he did not get the collective down properly to prevent…
- [Accident 20260122000529A](https://openairdocs.org/incident/20260122000529A), Jan 22, 2026: Hughes 369D (N105AC), North Augusta, SC, Substantial damage. While performing aerial tree trimming, the pilot received a chip detector light. Started back toward the landing zone when the torque started to decay and…
- [Incident 20260101001019I](https://openairdocs.org/incident/20260101001019I), Jan 1, 2026: Hughes 369D (N861MC), Rogersburg, ID, Minor damage. Pilot stated that while conducting helicopter game capturing operation the standard procedure is to toe into a sloping hill to drop off door net gunner to…
- [Accident 20250727010329A](https://openairdocs.org/incident/20250727010329A), Jul 27, 2025: Bell 206B (N432TV), Ames, NE, Substantial damage. The helicopter had completed it’s second aerial application and was returning to the service truck to refill dispensing agent. At some point between the…
- [Accident 20250625018389A](https://openairdocs.org/incident/20250625018389A), Jun 25, 2025: Md Helicopters Inc 369E (N411WJ), Meeker, CO, Destroyed, 1 fatal. The private pilot informed his spouse that he was going on a flight to practice autorotations. During the practice, the aircraft was observed via ADS-B…
- [Accident 20240911014569A](https://openairdocs.org/incident/20240911014569A), Sep 11, 2024: Hughes 369D (N8969F), Canton, MI, Substantial damage. The aircraft was being flown in support of powerline maintenance work operating from an off airport landing zone and conducting part 133 class b cargo…
- [Accident 20240720008599A](https://openairdocs.org/incident/20240720008599A), Jul 20, 2024: Bell 206B (N26UK), Cornland, IL, Destroyed. Pilot clipped a power line while spraying in agriculture operations. Time of day was dusk.
- [Accident 20240713009629A](https://openairdocs.org/incident/20240713009629A), Jul 13, 2024: Mcdonnell Douglas Helicopter 369E (N473E), Cottonwood, AZ, Substantial damage. The second air tour of the day started at 10:15AM. As the pilot approached viewing site he began a slow gradual deceleration and aimed to position the…
- [Accident 20240220000799A](https://openairdocs.org/incident/20240220000799A), Feb 20, 2024: Hughes 369D (N690WA), Kipahulu, HI, Substantial damage. The pilot picked up a passenger from unimproved site. While on the ground with the helicopter running the passenger secured his gear into the back seat of the…
- [Accident 20230805011339A](https://openairdocs.org/incident/20230805011339A), Aug 5, 2023: Hughes 369D (N353AH), Elberon, VA, Substantial damage. Aircraft departed new kent county airport (W96) at 0858EDT and flew to wakefield municipal airport (kakq) landing at 0928EDT. The crew was utilizing kakq as…
- [Accident 20230730013369A](https://openairdocs.org/incident/20230730013369A), Jul 30, 2023: Bell 206B (N231RL), Deloit, IA, Destroyed, 1 fatal. Whiile on a spray-run, the aircraft struck a powerline. The powerline was wrapped around the main rotor of the aircraft. This caused the aircraft to come to…
- [Accident 20230713008809A](https://openairdocs.org/incident/20230713008809A), Jul 13, 2023: Hughes 369D (N533DR), Atchison, KS, Destroyed. The rotorcraft departed seneca, KS to perform agricultural operations approximately 10 miles north of Atchison, KS. During spray application, the rotorcraft…
- [Accident 20221208020979A](https://openairdocs.org/incident/20221208020979A), Dec 8, 2022: Hughes 369D (N458HW), La Sal, UT, Substantial damage. At approximately, 11:15(l), the pilot maneuvered the aircraft close to a steep mountain slope performing a toe-in landing against the steep slope to allow the…
- [Accident 20220418002299A](https://openairdocs.org/incident/20220418002299A), Apr 18, 2022: Bell Helicopter Textron 206B (N919AC), Fowler'S Bluff, FL, Substantial damage. On April 18/2022, at 12:37PM, while on an aerial application flight in a remote area near Fowler'S Bluff (FL), N919AC, a Bell helicopter 206B, [privacy data…
- [Accident 20211221021329A](https://openairdocs.org/incident/20211221021329A), Dec 21, 2021: Hughes 369D (N111AD), Strawberry, AZ, Substantial damage. On Tuesday, 12/21/2021, at approximately 10:30 MST, N111AD, a 1980 Hughes (MD) model 369D helicopter, serial number 400704D, landed safely after the main rotor…
- [Incident 20211116020849I](https://openairdocs.org/incident/20211116020849I), Nov 16, 2021: Hughes 369D (N48MP), Palm Springs, CA, Minor damage. On 11/16/2021 an airman was landing in the area of north Palm Springs. The flight was conducted under part 91. The purpose was to track cattle. In the area.…
- [Accident 20210923021959A](https://openairdocs.org/incident/20210923021959A), Sep 23, 2021: Hiller UH-12E (N5334V), Bovill, ID, Substantial damage. The helicopter, operating part 137, was approximately 50' AGL and slowly approaching the loading zone to reload. The pilot felt a jolt then experienced a…
- [Accident 20210906014469A](https://openairdocs.org/incident/20210906014469A), Sep 6, 2021: Mcdonnell Douglas Helicopter 369E (N125KW), Delta Junction, AK, Substantial damage. The landing pad was made of heavy plastic dock panels(approx. 1000# each) made into the shape of an h. As the pilot approached the landing pad, she elected to…
- [Accident 20201027020999A](https://openairdocs.org/incident/20201027020999A), Oct 27, 2020: Hughes 369D (N58251), Honolulu, HI, Substantial damage. During external load operation to relocate equipment, engine lost power. Pilot jettisoned load and line but was not able to maintain flight. Aircraft descended…
- [Accident 20200805009889A](https://openairdocs.org/incident/20200805009889A), Aug 5, 2020: Hughes 369D (N104SU), Delia, KS, Substantial damage. On 08/05/2020, at 1745 CDT, a Hughes 369D, N104SU, registered to [privacy data omitted], (5U2L) was conducting airborne vegetation management by sawing trees…
- [Accident 20200502018599A](https://openairdocs.org/incident/20200502018599A), May 2, 2020: Md Helicopters Inc 369E (N8375F), Houston, TX, Destroyed, 1 fatal. On 5/2/2020 at 0205 CDT, N8375F, [privacy data omitted], inc. model 369E, s/n 0586F, registered to the [privacy data omitted], and operated by the [privacy…
- [Incident 20200401002979I](https://openairdocs.org/incident/20200401002979I), Apr 1, 2020: Md MD-369D (N719KV), Lihue, HI, Minor damage. Helicopter landed on a helicopter pad, engine was shut-off and blades slightly rotating when a gust wing came and one blade hit the tail boom. Pilot stopped…
- [Incident 20191111020999I](https://openairdocs.org/incident/20191111020999I), Nov 11, 2019: Bell 206B (N1751), Titusville, FL, Minor damage. On November 11, 2019, at approximately 14.30 local time, the flight instructor and student of N1751, a Bell helicopter BHT206-B3, practiced traffic patterns at…
- [Accident 20190704009189A](https://openairdocs.org/incident/20190704009189A), Jul 4, 2019: Md Helicopters Inc 369E (N5277F), Houston, TX, Substantial damage. The pilot was unable to control the helicopter descend speed and the helicopter experienced a hard landing and roll over.
- [Accident 20190523005069A](https://openairdocs.org/incident/20190523005069A), May 23, 2019: Bell 206B (N158H), Pittsfield, IL, Substantial damage. On may 23, 2019 at approximately 12:25 central daylight time (CDT), an Bell 206B helicopter, N158H, registered to orlando aircraft sales LLC and operated by a…
- [Accident 20190426016859A](https://openairdocs.org/incident/20190426016859A), Apr 26, 2019: Bell 206B (N206JH), Oakridge, OR, Substantial damage. On April 26th, 2019 N206JH, a Bell 206B3, crashed while conducting an agricultural spray operation in clearwater, OR. The aircraft was being operated under CFR…
- [Accident 20190416003309A](https://openairdocs.org/incident/20190416003309A), Apr 16, 2019: Bell 206B (N61PH), Ft Mcdowell, AZ, Destroyed, 2 fatal. On April 16, 2019, about 05:45 local mountain standard time, a Bell helicopter Textron model 206B, serial number 3282, N61PH, which was certificated under the…
- [Accident 20190305000909A](https://openairdocs.org/incident/20190305000909A), Mar 5, 2019: Hughes 369D (N89ZC), Talking Rock, GA, Destroyed, 1 fatal. Aircraft was in work profile, carrying an approximately 30 foot long remote powered saw blade. Traveling in an eastern direction, details reviled saw blade…
- [Accident 20180822012109A](https://openairdocs.org/incident/20180822012109A), Aug 22, 2018: Hughes 369D (N89ZC), Ridgway, PA, Minor damage. Pilot and general manager were surveying power lines for storm damage for first energy power company. While operating at approximately 80 feet AGL between two…
- [Accident 20180808010609A](https://openairdocs.org/incident/20180808010609A), Aug 8, 2018: Hughes 369D (N369MH), Honolulu, HI, Substantial damage. On August 8, 2018, about 0920 hawaii‐aleutian standard time, a Hughes 369D helicopter, N369MH, experienced a significant inflight vibration event, which…
- [Accident 20180704023669A](https://openairdocs.org/incident/20180704023669A), Jul 4, 2018: Hughes 369D (N8648F), Destroyed, 2 fatal. At approximately 2114 gmt, the helicopter initiated a normal pinnacle type of departure from the vessels helipad with the pilot and one observer on board. The…
- [Accident 20180520005649A](https://openairdocs.org/incident/20180520005649A), May 20, 2018: Summa Corp 369D (N362JS), Boutte, LA, Destroyed, 1 fatal. Aircraft was conducting powerline inspections/maintenance. Aircraft struck powerpole and hit powerlines as it descended to ground. Pilot sustained minor…
- [Incident 20180508004969I](https://openairdocs.org/incident/20180508004969I), May 8, 2018: Hughes 369D (N514PA), Lihue, HI, Minor damage. N514PA was in the wainaha area assisting in trash removal. The helicopter had departed from Lihue Airport at an estimated time of 9 am for the wainaha area.…
- [Incident 20180429022289I](https://openairdocs.org/incident/20180429022289I), Apr 29, 2018: Hughes 369D (N175JL), Newark, OH, Minor damage. On 4/29/2018, at approximately 11 :35 am, pilot in command (PIC} and lineman (seated to the pilot's left on work platform) departed the landing zone, located…
- [Accident 20180307001519A](https://openairdocs.org/incident/20180307001519A), Mar 7, 2018: Hughes 369D (N499SL), Blair, WI, No damage. On March 7, 2018 a Hughes 369D helicopter, operated by high line helicopters LLC working out of lacrosse Wisconsin, was transporting human external cargo to…
- [Incident 20171016020029I](https://openairdocs.org/incident/20171016020029I), Oct 16, 2017: Hughes 369D (N514PA), Poomau Canyon, HI, Minor damage. On 10/16/2017 at approximately 0930 Hawaii standard time a helicopter operated by airborne aviation inc., was at approximately 4200 ft. AGL on approach to the…
- [Accident 20170526006839A](https://openairdocs.org/incident/20170526006839A), May 26, 2017: Bell 206B (N24FS), Rockville, ID, Substantial damage. Pilot was performing 137 operations. Pilot reported a grinding noise and a loud bang, followed by a loss of power. Helicopter descended from 50 feet with a…
- [Accident 20160909017019A](https://openairdocs.org/incident/20160909017019A), Sep 9, 2016: Hughes 369D (N500TN), Peach Orchard, MO, Substantial damage. Helicopter was performing part 133 powerline work hovering next to powerlines energized with 161KV. While bonded to one line, another line arced over to the…
- [Accident 20160729012629A](https://openairdocs.org/incident/20160729012629A), Jul 29, 2016: Bell 206B (N1087N), Yakima, WA, Substantial damage. N1087N, a 1980 Bell 206B helicopter received substantial damage and subsequently caught on fire destroying the aircraft. The commercially rated pilot received…
- [Accident 20160326004249A](https://openairdocs.org/incident/20160326004249A), Mar 26, 2016: Hughes 369D (N721RP), Jamestown, ND, Substantial damage. Pilot had a tailrotor ground strike while conducting a practice autorotation. NTSB determined that damage was severe enough to classify as an accident.
- [Accident 20151103022389A](https://openairdocs.org/incident/20151103022389A), Nov 3, 2015: Hughes 369D (N510PA), Sedro Wooley, WA, Substantial damage. On November 3, 2015, a Hughes 369D helicopter, N510PA, experienced an engine failure resulting in a hard landing and substantial damage to the aircraft. The…
- [Accident 20151102018019A](https://openairdocs.org/incident/20151102018019A), Nov 2, 2015: Bell 206B (N22743), Wilimina, OR, Substantial damage. At approximately 2:05 PST, pilot departed the fueling station and proceeded to conduct 133 operations (christmas tree slinging). At around 2:25, on the way to…
- [Accident 20140729012839A](https://openairdocs.org/incident/20140729012839A), Jul 29, 2014: Hughes 369D (N89ZC), West Liberty, OH, Substantial damage. Description of event and comments with recommendation(s) (1) Description of event. July 29, 2014; pilot was conducting vegetation cutting activities using a…
- [Accident 20140726020539A](https://openairdocs.org/incident/20140726020539A), Jul 26, 2014: Bell 206B (N240SJ), Lincoln, NE, Substantial damage. The aircraft was spraying at 16-18 feet AGL at a speed of approximately 80MPH. Sudden loss of power, autorotation, and landed on a nearby soy bean field.…
- [Accident 20130805016129A](https://openairdocs.org/incident/20130805016129A), Aug 5, 2013: Hughes 369D (N134SH), Delta Junction, AK, Substantial damage. The pilot was conducting a 14 CFR part 133 class c operation when the engine on the helicopter abruptly stopped. The pilot had to autorotate into the trees.…
- [Accident 20130523011509A](https://openairdocs.org/incident/20130523011509A), May 23, 2013: Bell 206B (N297CA), Chesterfield, MO, Substantial damage. On may 23, 2013 at approximately 2100 hrs. The flight instructor was acting as the pilot in command of helicopter N297CA, a Bell helicopter BHT-206B, s/n 1453.…
- [Accident 20130420005949A](https://openairdocs.org/incident/20130420005949A), Apr 20, 2013: Bell 206B3 (N4237M), Wells, NV, Substantial damage. On 4/20/2013 at 10:40 a.m., helicopter N4237M, a Bell 206B3, struck a 8-10 foot bush with the tail rotor. This resulted in significant vibrations. The pilot…
- [Accident 20130211001189A](https://openairdocs.org/incident/20130211001189A), Feb 11, 2013: Bell 206B (N360AW), Albuquerque, NM, Substantial damage. Pilot stated engine shut down during flight at low altitude and low airspeed. Pilot entered autorotation to available cleared area in mountainous terrain. Due…
- [Accident 20130102000019A](https://openairdocs.org/incident/20130102000019A), Jan 2, 2013: Bell 206 (N828AC), Mcfarland, CA, Destroyed, 1 fatal. While returning from a crop frost control flight, aircraft crashed under unknown circumstances in a farm field appox 4.12 miles from the delano muni airport.…

All 79: https://openairdocs.org/engine/rolls-royce-250-c20b/incidents.md

## Service difficulty reports (1,981, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR 2026FA0000798](https://openairdocs.org/sdr/2026FA0000798), Sep 30, 2026: LOCK NUT. FAILED. MS21043 NUTS ARE UTILIZED TO SECURE TURBINE, COMPRESSOR, FUEL CONTROL, GOVERNOR, AND HAVE BEEN FOUND NUMEROUS TIMES TO HAVE NOT MAINTAINED THE MANUAL SPECIFIED 
- [SDR 2024FA0000959](https://openairdocs.org/sdr/2024FA0000959), Dec 12, 2024: ENGINE. MAKING METAL. PILOT EXPERIENCED AN ENGINE CHIP LIGHT DURING LANDING. ENGINE REMOVED FROM AIRCRAFT FOR FURTHER INVESTIGATION.
- [SDR 2024FA0000958](https://openairdocs.org/sdr/2024FA0000958), Dec 11, 2024: ENGINE. MAKING METAL. PILOT EXPERIENCED AN ENGINE CHIP INDICATION DURING APPROACH. MAINTENANCE PERFORMED CLEANING AND GROUND RUNS AND RETURNED TO SERVICE.
- [SDR 2024FA0000554](https://openairdocs.org/sdr/2024FA0000554), Jul 28, 2024: CLUTCH. MAKING METAL. DURING A SCHEDULED 100 HOUR MAINTENANCE INSPECTION ON THE AIRCRAFT. THE MECHANIC QUESTIONED THE DARK BURNT APPEARANCE OF THE GREASE IN THE • BEARING, OVERRUNNIN
- [SDR 2024FA0000495](https://openairdocs.org/sdr/2024FA0000495), Jul 9, 2024: CLUTCH. MAKING METAL. DURING AIRCRAFT INSPECTION AN AIRCRAFT MECHANIC QUESTIONED DISCOLORING OF THE OVERRUNNING CLUTCH OUTPUT BEARING GREASE. THE BEARING DID NOT DEMONSTRATE ANY ABNO
- [SDR 2024FA0000203](https://openairdocs.org/sdr/2024FA0000203), Mar 6, 2024: ENGINE. MAKING METAL. PILOT REPORTED AN ENGINE CHIP LIGHT ILLUMINATION AND PERFORMED AN UNSCEDULED LANDING. A MECHANIC WAS SENT TO THE AIRCRAFT AND DISCOVERED METAL ON THE UPPER ENGI
- [SDR 3M3A202401060001](https://openairdocs.org/sdr/3M3A202401060001), Jan 1, 2024: UNKNOWN. UNKNOWN. ON JANUARY 1ST 2024, N514PA EXPERIENCED AN ENGINE CHIP LIGHT DURING A 135 TOUR FLIGHT. THE PILOT MADE A PRECAUTIONARY LANDING. ALL PASSENGERS WERE REMOVED WITH 
- [SDR 2023FA0000497](https://openairdocs.org/sdr/2023FA0000497), Aug 28, 2023: ENGINE. ABNORMAL. UDRING STRAIGHT AND LEVEL FLIGHT THE PILOT REPORTED LOW ENGINE TORQUE. THE PILOT SELECTED A LANDING SPOT AND PERFORMED AN UNEVENTFUL PRECAUTIONARY LANDING. THE 
- [SDR 2023FA0000285](https://openairdocs.org/sdr/2023FA0000285), May 30, 2023: CONNECTOR. LOOSE. DURING FLIGHT THE PILOT NOTICED THE FUEL QUANTITY GAUGE DROPPED TO ZERO THEN THE ENGINE OIL TEMP WENT TO ZERO. THE INSTRUMENT CIRCUIT BREAKER THEN POPPED. THE P
- [SDR 2022FA0000760](https://openairdocs.org/sdr/2022FA0000760), Dec 14, 2022: ENGINE. MAKING METAL. ENGINE GEARBOX CHIP LIGHT ILLUMINATED DURING APPROACH FOR LANDING. UPON INSPECTION IT WAS DETERMINED THAT THE UPPER GEARBOX MAGNETIC CHIP DETECTOR HAD ILLUMINAT
- [SDR 2022FA0000677](https://openairdocs.org/sdr/2022FA0000677), Nov 8, 2022: ENGINE. MAKING METAL. PILOT GOT AN ENGINE CHIP LIGHT DURING FLIGHT AND PERFORMED A PRECAUTIONARY LANDING. MAINTENANCE FOUND EVIDENCE OF CHIPS ON THE LOWER AND UPPER ENGINE GEARBOX CH
- [SDR 2022FA0000286](https://openairdocs.org/sdr/2022FA0000286), Jun 10, 2022: HUB. CRACKED. A CRACK WAS FOUND ON THE OUTSIDE OF M/R HUB ORIGINATING FROM INBOARD TT PIN HOLE. THE CRACK EXTENDS FROM THE INSIDE DIAMETER OF THE BORE TO THE OUTSIDE OF THE H
- [SDR K2DA0182E](https://openairdocs.org/sdr/K2DA0182E), Nov 3, 2021: COMPRESSOR. NONE. AIRCRAFT N508PH, A MD500E, WAS CONDUCTING A UTILITY FLIGHTS UNDER AN OAS CONTRACT AND PERFORMED A PRECAUTIONARY LANDING AT 21°35’ 10.9” N, 158° 00’ 44.7” W DUE 
- [SDR 2021FA0000137](https://openairdocs.org/sdr/2021FA0000137), May 13, 2021: TURBINE WHEEL. BINDING. DURING MAINTENANCE THE MECHANICS DETERMINED THE FIRST STAGE TURBINE BLADES WERE RUBBING ON THE NOZZLE.ASSEMBLY REMOVED FROM ENGINE
- [SDR 2021FA0000047](https://openairdocs.org/sdr/2021FA0000047), Feb 16, 2021: FUEL CONTROL. FAILED. FIRST FUEL CONTROL UNABLE TO ADJUST START , SECOND FUEL CONTROL WAS UNABLE TO START AT ALL, REPLACED FUEL CONTROL DISCREPANCY WAS FIXED. THIS WAS ALL IN A YEARS
- [SDR 2021FA0000078](https://openairdocs.org/sdr/2021FA0000078), Feb 16, 2021: FUEL CONTROL. FAILED. AIRCRAFT ENGINE WOULD NOT START. FUEL CONTROL REMOVED AND REPLACED DISCREPANCY CORRECTED. THIS IS THE FINDINGS OF THE REPAIR STATION THE FUEL CONTROL WAS SENT T
- [SDR 2019FA0000338](https://openairdocs.org/sdr/2019FA0000338), Oct 14, 2019: FUEL CONTROL. LEAKING. DURING MAINTENANCE GROUND RUN CHECK OPERATIONS ENGINE FUEL WAS NOTICED COMING OUT OF THE FUEL CONTROL CASE AND LEAKING TO THE GROUND. FUEL CONTROL WAS REMOVED F
- [SDR 2019FA0000298](https://openairdocs.org/sdr/2019FA0000298), Sep 6, 2019: COUPLING. BROKEN. FAILURE OF THE AFT COUPLING. FRACTURE OF COUPLING. SEE ENGINEERED PRODUCTS 8130-3 WORK ORDER # MDI1167 DATED MARCH 20, 2018 FOR PART DETAIL.
- [SDR CA190716006](https://openairdocs.org/sdr/CA190716006), Jul 10, 2019: GOVERNOR. FAULTY. (CAN) AIRCRAFT WAS IN FLIGHT AND PILOT NOTICED A DROP IN ENGINE RPM FROM 100% TO 90%. STARTED DECENT ON A BUSH ROAD. GOVERNOR WAS REPLACED WITH A SERVICEABLE UN
- [SDR DCGA2019FA0000153](https://openairdocs.org/sdr/DCGA2019FA0000153), May 15, 2019: ENGINE. MAKING METAL. ENGINE CHIP LIGHT DURING FLIGHT. MAINTENANCE FOUND 4 FLAKES ON UPPER AND LOWER PLUGS WITHIN PARAMETERS. PERFORMED AN OIL SYSTEM DRAIN, FLUSH AND FILTER CLEAN AN
- [SDR BHHR20190607001](https://openairdocs.org/sdr/BHHR20190607001), Apr 18, 2019: HOUSING. CRACKED. A CRACK WAS FOUND IN TRANSMISSION LOWER HOUSING JUST BELOW THE CYCLIC BELLCRANK BRACKET P/N 33031 MOUNTING FACE. THE CRACK WAS LOCATED IN THE AFT LOWER MOUNTING
- [SDR K2DA2019052800001](https://openairdocs.org/sdr/K2DA2019052800001), Apr 17, 2019: BLEED VALVE. STUCK. PILOT PERFORMED ENGINE POWER ASSURANCE CHECK AT 80% TQ AND 2,000 FT AGL AND REPORTED A +1* ON THE POWER CHECK WHICH WAS A SIGNIFICANT DIFFERENCE IN THE POWER CH
- [SDR CA190326009](https://openairdocs.org/sdr/CA190326009), Mar 26, 2019: COMPRESSOR. FOD. (CAN) THE RENTAL ENGINE RAN HOT FROM THE FIRST DAY I FLEW IT. THE STARTS WHERE VERY SLOW BUT STILL IN PARAMETERS. THE TOT WAS APPROX. 580 DEGREES AT GROUND IDLE
- [SDR K2DA2019052800003](https://openairdocs.org/sdr/K2DA2019052800003), Mar 19, 2019: BLEED VALVE. STICKS. DURING AN ROUTINE INSPECTION IT WAS DISCOVERED THAT THE ENGINE BLEED VALVE WAS STICKING. BLEED VALVE HAD 317.2 TSO.
- [SDR 2019FA0000075](https://openairdocs.org/sdr/2019FA0000075), Mar 18, 2019: BLADE. CRACKED. THE BOTTOM SKIN OF THE MAIN ROTOR BLADE HAS A 4 1/2 INCH CRACK STATING AT THE TRAILING EDGE AND PERPENDICULAR TO SPAN 57 1/4 INCHES IN FOR BLADE TIP.
- [SDR CA190507012](https://openairdocs.org/sdr/CA190507012), Mar 18, 2019: STATOR. BROKEN. (CAN) UPON ROUTINE INSPECTION OF COMPRESSOR CASE HALFS (WHILE ENGINE WAS REMOVED FROM AIRFRAME) IT WAS FOUND THAT ONE OF THE 6TH STAGE STATOR BLADES HAD BROKEN 
- [SDR 2020FA0000049](https://openairdocs.org/sdr/2020FA0000049), Mar 12, 2019: ROTOR. CRACKED. A CRACK INDICATION WAS INDICATED 7/16 INCHES LONG, 10 INCHES FROM UPPER END OF MAST. CRACK WAS FOUND WITH FLORESCENT MAGNETIC PARTICLE. INSPECTION WAS DONE PER 
- [SDR K2DA2019052800002](https://openairdocs.org/sdr/K2DA2019052800002), Feb 17, 2019: BLEED VALVE. STUCK. PILOT WAS RUNNING ENGINE ON THE GROUND AND THE COMPRESSOR STARTED STALLING. MAINTENANCE PERSONNEL DISCOVERED THE ENGINE BLEED VALVE WAS STUCK IN THE CLOSED POSI
- [SDR J5XA2019FA0000031](https://openairdocs.org/sdr/J5XA2019FA0000031), Feb 5, 2019: CHIP DETECTOR. CONTAMINATED. PILOT REPORTED AN ENGINE CHIP LIGHT DURING APPROACH TO LANDING. MAINTENANCE FOUND ACCEPTABLE CHIPS ON UPPER AND LOWER PLUGS. THE PLUGS WERE CLEANED AND REINSTAL
- [SDR LSSA2018F00000](https://openairdocs.org/sdr/LSSA2018F00000), Sep 20, 2018: DRIVE BEARING. FAILED. THE AIRCRAFT SUFFERED AN INFLIGHT ENGINE OVERSPEED AND SUBSEQUENT ENGINE FAILURE. THE PILOT PERFORMED A SUCCESSFUL AUTOROTATION TO THE GROUND WITH NO DAMAGE TO 
- [SDR CA190110019](https://openairdocs.org/sdr/CA190110019), Sep 19, 2018: SAFETY VALVE. FAILED. (CAN) IT WAS REPORTED TO BELL: ENROUTE WITH A PASSENGER AND SUSTAINED A SUDDEN POWER LOSS. PILOT AUTOROTATED TO AN OPEN FIELD AND THE LANDING GEAR WAS DAMAGED D
- [SDR MKHR2018091300000](https://openairdocs.org/sdr/MKHR2018091300000), Aug 8, 2018: BOLT. SHEARED. DURING CRUISE FLIGHT THE PILOT EXPERIENCED AN EXCESSIVE TAIL ROTOR VIBRATION. THE PILOT THEN EXECUTED A PRECAUTIONARY LANDING. WHEN CREW ARRIVED TO INVESTIGATE 
- [SDR CA180723016](https://openairdocs.org/sdr/CA180723016), Jul 19, 2018: MONITOR. CRACKED. (CAN) DURING SCHEDULED MAINTENANCE, THE TRANSMISSION OIL MONITOR HOUSING WAS REMOVED TO INSPECT THE SCREEN FOR CONTAMINATION. UPON REMOVAL OF THE O-RING FROM TH
- [SDR DCGA2018071200221](https://openairdocs.org/sdr/DCGA2018071200221), Jul 12, 2018: CHIP DETECTOR. CONTAMINATED. PILOT REPORTED AND ENGINE CHIP LIGHT AND PERFORMED AN UNSCHEDULED LANDING. MAINTENANCE FOUND 1 SLIVER ON THE UPPER GEARBOX CHIP PLUG. THE PLUG WAS CLEANED AND A
- [SDR DCGA201801230044](https://openairdocs.org/sdr/DCGA201801230044), Jan 23, 2018: ENGINE. MAKING METAL. DURING CRUISE FLIGHT AND ENGINE CHIP LIGHT INDICATION OCCURRED. THE PILOT PERFORMED A PRECAUTIONARY LANDING. MAINTENANCE DISCOVERED METAL FLAKES ON UPPER AND LO
- [SDR CA180117008](https://openairdocs.org/sdr/CA180117008), Jan 8, 2018: DRIVE SHAFT. WORN. (CAN) NOTED A KNOCKING NOISE NEAR TAIL ROTOR GEARBOX AFTER AIRCRAFT LANDED FOR MAINTENANCE. FOUND EXCESSIVE PLAY BETWEEN AFT TAIL ROTOR DRIVESHAFT SEGMENT AND H
- [SDR HDNA2018F00066](https://openairdocs.org/sdr/HDNA2018F00066), Jan 3, 2018: ENGINE. MAKING METAL. ENGINE CHIP INDICATION. PILOT FOLLOWED EMERGENCY PROCEDURE AND SHUT ENGINE DOWN AND PERFORMED RUN-ON LANDING. UPON INSPECTION OF CHIP DETECTOR FOUND CATEGORY 1 
- [SDR BHHR201710030001](https://openairdocs.org/sdr/BHHR201710030001), Oct 3, 2017: DRIVE GEAR. SPALLED. A TEAR-DOWN INSPECTION OF A 250-C20B ENGINE GEARBOX WAS PERFORMED. THIS GEARBOX WAS REMOVED FROM SERVICE DUE TO CHIP LIGHTS AND AN AUDIBLE WHINE HEARD OVER THE 
- [SDR BHHR201710030002](https://openairdocs.org/sdr/BHHR201710030002), Oct 3, 2017: GEAR. SPALLED. ENGINE WAS REMOVED FROM SERVICE DUE TO CHIP LIGHTS AND AN AUDIBLE WHINE HEARD OVER THE RUNNING AIRCRAFT. THIS GEARBOX WAS ASSEMBLED IN-HOUSE AFTER A 3500 HOUR O
- [SDR 2017F00107](https://openairdocs.org/sdr/2017F00107), Jul 17, 2017: BEARING. FAILED. ENGINE CHIP LIGHT CAME ON, TURBINE WAS INSPECTED AND THE NR 5 BEARING WAS FOUND TO BE THE CAUSE OF METAL GENERATION.
- [SDR 2017FA0000000](https://openairdocs.org/sdr/2017FA0000000), Jan 3, 2017: COMPRESSOR. DAMAGED. PILOT REPORTED TURBINE OUTLET TEMPERATURE INCREASE AT END OF FLIGHT. MAINTENANCE DISCOVERED COMPRESSOR BLADES DAMAGED BY UNKNOWN FOD.
- [SDR 2016FA0000632](https://openairdocs.org/sdr/2016FA0000632), Dec 13, 2016: DRIVE ASSY. CRACKED. DRIVE BODY WAS FOUND CRACKED DURING OVERHAUL.
- [SDR 2016FA0000537](https://openairdocs.org/sdr/2016FA0000537), Oct 24, 2016: FUEL CONTROL. LEAKING. DURING A POST FLIGHT INSPECTION MAINTENANCE FOUND A SMALL FUEL LEAK AT THE OUT FITTING LOCATION ON THE ENGINE FUEL CONTROL UNIT. THE UNIT WAS REPLACED WITH A SE
- [SDR QMLA2016071816076](https://openairdocs.org/sdr/QMLA2016071816076), Jul 18, 2016: WARNING SYSTEM. FALSE ACTIVATION. AFTER TAKEOFF, THE PILOT SAW A TRANSMISSION CHIP LIGHT ILLUMINATE. HE IMMEDIATELY RETURNED TO BASE AND CALLED THE MECHANIC ON DUTY. THE MECHANIC ARRIVED TO TROU
- [SDR DCGA2016071800332](https://openairdocs.org/sdr/DCGA2016071800332), Jul 16, 2016: BLADE. DELAMINATED. FOUND DELAMINATION ON MAIN ROTOR BLADE STAINLESS STEEL LEADING EDGE.
- [SDR K2DA20160707146](https://openairdocs.org/sdr/K2DA20160707146), Jul 4, 2016: BEARING. SPALLED. AIRCRAFT PERFORMED A PRECAUTIONARY LANDING FOR AN ENGINE CHIP LIGHT WHILE CONDUCTING AN AIR TOUR. THERE WERE NO SECONDARY INDICATIONS AND THE AIRCRAFT LANDED SA
- [SDR K2D2016F00002](https://openairdocs.org/sdr/K2D2016F00002), Jun 14, 2016: BEARING. DAMAGED. THE COMPRESSOR WAS REMOVED FROM THE ENGINE GEARBOX AND IT WAS DISCOVERED THAT THE COMPRESSOR SPUR ADAPTER GEARSHAFT JOURNAL HAD A WORN AREA WHERE METAL WAS REMO
- [SDR 2016FA0000284](https://openairdocs.org/sdr/2016FA0000284), Jun 8, 2016: BEARING. SPALLED. THE ENGINE WAS REMOVED FOR CHIPS IN THE OIL. THE SOURCE WAS FOUND TO BE THE NR 5 BEARING, PN M250-10106, SN NWL13-0863.
- [SDR HDNA201604270001](https://openairdocs.org/sdr/HDNA201604270001), Apr 27, 2016: COMPRESSOR. MAKING METAL. WHILE ON BASE FINAL FOR TAXIWAY, THE NR 1 ENG OIL PRESS STARTED FLUCTUATING WITH OIL TEMPERATURE NORMAL & TORQUES MATCHED. AT SHORT FINAL THE ENG CHIP CAUTION L
- [SDR 8MHR201604110001](https://openairdocs.org/sdr/8MHR201604110001), Apr 9, 2016: TURBINE WHEEL. FRACTURED. FOUND A PIECE OF THE FOURTH STAGE TURBINE WHEEL BLADE AND SHROUD MISSING.

All 1,981: https://openairdocs.org/engine/rolls-royce-250-c20b/reports.md

## STCs that may be installed (OpenAirDocs) (7)

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 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
- [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

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