The U.S. aircraft register, updated daily
Parts · Rotorcraft systems

Main Rotor

1 failure reports named the main rotor in the last ten years, 9 since 1996, most often on the Airbus Helicopters EC 130 now H130; the condition most often found was "fod". 111 FAA approvals let 25 companies make a replacement main rotor, Sterling Helicopter holding the most (21). The reports call it "main rotor", "main rotor assy", "main rotor head", "main rotor sys".

Reports by year

0122321996113112026
Reports by year, as a table
reports
19962
19971
19981
20003
20011
20261

Which system the reports file it under last ten years

Rotorcraft systems1
Reports by system, as a table
reports
Rotorcraft systems1

Models most often reporting it last ten years

Airbus Helicopters EC 130 now H1301
Models most reported, as a table
reports
Airbus Helicopters EC 130 now H1301

How it failed the condition found, last ten years

fod1
Conditions found, as a table
reports
fod1

Engines most often reporting it

Turbomeca (Safran) ARRIEL 2D 1

Approved replacement parts 111 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a main rotor and sell it as an approved part for the models named. These are the companies holding such approvals for a main rotor:

Sterling Helicopter 21Able Aerospace Services, INC. 14Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC) 12Lord Corporation 11Lord Corporation, Mechanical Products Division 8Arkwin Industires INC 5Rosemount Aerospace INC 4Moog Components Group 4Helicopter Technology Company 4Parker Hannifin CORP 3Aerometals 3Woodward Hrt INC 2Van Horn Aviation 2Rotor Blades INC 2Parts Manufacturing Associates LLC 2Moog INC. 2Extex Engineered Products INC 2Cox and Company INC 2American Eurocopter LLC 2Wagner Aeronautical INC 1Thoroughbred Aviation Maintenance, INC. 1Rotor Trends LLC 1Pickering Aviation INC 1Liebherr Aerospace Saline INC 1Airbus Helicopters, INC. 1

For these models most: Bell 407 (15), Bell 222 (9), Bell 206 JetRanger and LongRanger (9), Bell 427 (8), Sikorsky Aircraft Corp S-92 (7), Sikorsky S-92 (6), Md Helicopters Inc 500 (5), Bell 412 (5), Agusta Spa AB139 (5), Md Helicopters Inc 369 (4), Leonardo Spa AW109 (4), Bell 505 (4).

MakerPartReplacesFitsGrantedStatus
Able Aerospace Services, INC.Main Rotor Grip Assembly 206-011-132-113A206-011-132-113A Bell Textron Canada Limited 206B, 206L, 206L-12026-05-27current
Able Aerospace Services, INC.Main Rotor Hub Damper 407-310-100-107AA407-310-100-107Bell Textron Canada Limited 407, 4272026-01-05current
Sterling HelicopterMAIN ROTOR TACH, INTL RMHA-000032-250Modification PartBell Textron Canada Limited 206, 206A, 206A-1 (OH-58A)2025-12-22current
Sterling HelicopterMAIN ROTOR TACHO-METER RMHA-000084-90Modification PartLeonardo S.p.A. AW119, AW119 MKII2025-12-22current
Sterling HelicopterMAIN ROTOR TACH INTL RMHA-000035-340Modification PartAirbus Helicopters... EC135P1, EC135P2, EC135P2+2025-12-22current
Sterling HelicopterMAIN ROTOR SWASHPLATE ACCEL INTL RMHA-000029-250Modification PartBell Textron Canada Limited 4072025-12-22current
Sterling HelicopterMAIN ROTOR TACH RMHA-000035-140Modification PartAirbus Helicopters... EC135P1, EC135P2, EC135P2+2025-12-22current
Sterling HelicopterMAIN ROTOR TACH CABLE RMHA-000032-130Modification PartBell Textron Canada Limited 206, 206A, 206A-1 (OH-58A)2025-12-22current
Sterling HelicopterMAIN ROTOR TACH INTL RMHA-000029-240Modification PartBell Textron Canada Limited 4072025-12-22current
Sterling HelicopterMAIN ROTOR TACH RMHA-000066-140Modification PartLeonardo S.p.A. A109, A109A, A109A II2025-12-22current
Sterling HelicopterMAIN ROTOR TACH CABLE RMHA-000029-190Modification PartBell Textron Canada Limited 4072025-12-22current
Sterling HelicopterMAIN ROTOR SWASH-PLATE ACCEL RMHA-000032-110Modification PartBell Textron Canada Limited 206, 206A, 206A-1 (OH-58A)2025-12-22current
Sterling HelicopterMAIN ROTOR TACHOMETER INTL RMHA-000084-190Modification PartLeonardo S.p.A. AW119, AW119 MKII2025-12-22current
Sterling HelicopterMAIN ROTOR SWASH-PLATE INTL RMHA-000066-330Modification PartLeonardo S.p.A. A109, A109A, A109A II2025-12-22current
Sterling HelicopterMAIN ROTOR SWASH-PLATE, INTL RMHA-000032-230Modification PartBell Textron Canada Limited 206, 206A, 206A-1 (OH-58A)2025-12-22current
Sterling HelicopterMAIN ROTOR SWASH-PLATE ACCEL RMHA-000084-120Modification PartLeonardo S.p.A. AW119, AW119 MKII2025-12-22current
Sterling HelicopterMAIN ROTOR TACH INTL RMHA-000066-340Modification PartLeonardo S.p.A. A109, A109A, A109A II2025-12-22current
Sterling HelicopterMAIN ROTOR SWASHPLATE ACCEL RMHA-000059-110Modification PartBell Textron Canada Limited 5052025-12-22current
Sterling HelicopterMAIN ROTOR TACH RMHA-000059-130Modification PartBell Textron Canada Limited 5052025-12-22current
Sterling HelicopterMAIN ROTOR SWASH-PLATE ACCEL RMHA-000029-200Modification PartBell Textron Canada Limited 4072025-12-22current
Sterling HelicopterMAIN ROTOR SWASHPLATE ACCEL RMHA-000066-130Modification PartLeonardo S.p.A. A109, A109A, A109A II2025-12-22current
Sterling HelicopterMAIN ROTOR SWASHPLATE ACCEL INTL RMHA-000084-220Modification PartLeonardo S.p.A. AW119, AW119 MKII2025-12-22current
Sterling HelicopterMAIN ROTOR TACH BRACKET RMMD-000075-01Modification PartBell Textron Canada Limited 206, 206A, 206A-1 (OH-58A)2025-12-22current
Able Aerospace Services, INC.Main Rotor Hub Damper 407-310-100-107AA407-310-100-107Bell Textron Canada Limited 407, 4272025-12-15current
Able Aerospace Services, INC.Main Rotor Hub Damper 407-310-100-107AA407-310-100-107Bell Textron Canada Limited 407, 4272025-09-08current
Able Aerospace Services, INC.Main Rotor Hub Damper 407-310-100-107AA407-310-100-107AABell Textron Canada Limited 407, 4272025-07-21current
Able Aerospace Services, INC.Main Rotor Hub 407-310-100-107A407-310-100-107ABell Textron Canada Limited 407/4272025-05-06current
Arkwin Industires INCMain Rotor Head Damper 1911012-00492106-15801-104Sikorsky Aircraft Corporation S-92A2025-05-05current
Arkwin Industires INCMain Rotor Head Damper 1911012-00592106-15801-105Sikorsky Aircraft Corporation S-92A2025-05-05current
Arkwin Industires INCMain Rotor Head Damper 1911012-00392106-15801-103Sikorsky Aircraft Corporation S-92A2025-04-28current
Able Aerospace Services, INC.Main Rotor Hub Damper 407-310-100-107AA407-310-100-107AABell Textron Canada Limited 407, 4272024-12-30current
Able Aerospace Services, INC.Main Rotor Hub Damper 407-310-100-107AA407-310-100-107AABell Textron Canada Limited 407, 4272024-11-21current
Able Aerospace Services, INC.Main Rotor Hub Damper 407-310-100-107AA407-310-100-107AABell Textron Canada Limited 407, 4272023-09-01current active
Moog Components GroupMain Rotor Slip Ring JJ68304G6220V00151Agusta S.p.A. (R00002RD) AW139-AB1392023-03-22current
Moog Components GroupMain Rotor Slip Ring AW6441Sikorsky P/N: 92550-04801-101Sikorsky Aircraft... S92A2023-03-22current
Able Aerospace Services, INC.Main Rotor Hub Upper Plate Assembly 406-010-115-127406-010-115-127BELL 4072023-02-24current active
Able Aerospace Services, INC.Main Rotor Hub Lower Plate Assembly 406-010-117-125406-010-117-125BELL 4072023-02-24current active
Thoroughbred Aviation Maintenance, INC.Main Rotor Hub Fairing 369HT21004Modification ArticleMD Helicopters 369D, 369E, 369FF2023-01-25current
Lord CorporationMain Rotor Pitch Link Upper Rod End LB6-1501-3-58G6230V00151Leonardo Helicopters AW1892022-11-19current
Lord CorporationMain Rotor Spherical Bearing 704A33-633-211LORD704A33-633-211Airbus Helicopters AS350B, AS350B1, AS350BA2021-11-09current
Able Aerospace Services, INC.Main Rotor Grip Assembly 206-011-132-113206-011-132-113BELL 5052021-10-19current active
Cox and Company INCMain Rotor Distributor RIPS/ Bladefold 4203-692550-04805-106Sikorsky S-92A2020-09-29current
Cox and Company INCMain Rotor Distributor (MRD) 4203-292550-04805-102Sikorsky S-92A2020-09-29current
Van Horn AviationMain Rotor Blade Assembly MDL 206B-MDL-002Modification PartBell Helicopter... 206B2020-08-17current
Arkwin Industires INCMain Rotor Head Damper 1911012-00492106-15801-104Sikorsky Aircraft Corporation S-92A2020-01-28current
Arkwin Industires INCMain Rotor Head Damper 1911012-00592106-15801-105Sikorsky Aircraft Corporation S-92A2020-01-28current
Lord CorporationMain Rotor Oil Boot LORD412-340-102101412-340-102-101Bell Helicopter Textron 412, 412EP2019-05-03current
Van Horn AviationMain Rotor Blade Assembly MDL 206L-MDL-001Modification PartBell 206L, 206L-1, 206L-32018-08-16current
Pickering Aviation INCMain Rotor Pylon Seals 70219-04200-135-PAI70219-04200-135BHI H60 Helicopters LLC UH-60A) Timberline Helicopters, Inc....2018-05-07current
Moog INC.Main Rotor Slip Ring AW6441Sikorsky P/N 92550-04801-101Sikorsky Aircraft... S92A2018-03-01current
Moog INC.Main Rotor Slip Ring JJ68304G6220V00151Agusta S.p.A. R00002RD) (AW139-AB1392018-03-01current
Airbus Helicopters, INC.Main Rotor Head Balance Provision H341-31-3D-001-1Modification PartAirbus Helicopters SA341G2018-01-16current
Able Aerospace Services, INC.Main Rotor Grip Assembly 4AA-010-108-131406-010-108-131BELL 4072017-02-01current active
Able Aerospace Services, INC.Main Rotor Grip Assembly 4AA-010-108-135406-010-108-135BELL 4272017-02-01current active
Extex Engineered Products INCMain Rotor Grip ASI-4011-121-113204-011-121-113Bell Helicopter Textron 204B 205A 205A-12016-09-07current
Extex Engineered Products INCMain Rotor Grip ASI-4011-121-9204-011-121-9Bell Helicopter Textron 2122016-09-07current
Lord CorporationMain Rotor Spherical Thrust Bearing LB4-1158-24-2EA6200V503-011Agusta EH-101 (300 Series and 500 Series)2016-08-22current
Lord CorporationMain Rotor Centering Bearing LB9-1158-23-2NEA6221B507-043Agusta EH-101 (300 Series and 500 Series)2016-08-22current
Parker Hannifin CORPMain Rotor Servo Assy 388300-101992410-15800-114Sikorsky S-92A2016-07-20current
AerometalsMain Rotor Rod 369X21338-3369D21338-3MDHI Hughes) (369HM, 369HS, 369HE2015-01-21current
AerometalsMain Rotor Hub Fairing and Support Assembly MDL-AMC-027Modification PartMDHI Hughes) (369D, 369E, 369FF2015-01-21current
Woodward Hrt INCMain Rotor Servo 30006760-11176650-09805-111Sikorsky S-76A, S-76C, S-76D2013-01-08current
Rosemount Aerospace INCMain Rotor Upper Distributor 3210A1-14G3060V00352Agusta S.p.A AB139, AW1392012-04-08current
Rosemount Aerospace INCMain Rotor Lower Distributor 3220A1-14G3060V00252Agusta S.p.A AB139, AW1392012-04-08current
Rosemount Aerospace INCMain Rotor Lower Distributor 3220A1-14G3060V00252Agusta S.p.A AB139, AW1392012-03-20current
Rosemount Aerospace INCMain Rotor Upper Distributor 3210A1-14G3060V00352Agusta S.p.A AB139, AW1392012-03-20current
Moog Components GroupMain Rotor Slip Ring JJ68304G6220V00151Agusta S.p.A. R00002RD) (AW139-AB1392012-01-09current
Lord Corporation, Mechanical Products DivisionMain Rotor Pivot Bearing LB9-1062-6-1LBHT 412-010-106-101Bell Helicopter Textron . 4122011-09-18current
Liebherr Aerospace Saline INCMain Rotor Actuator - MHA 1633A0000-02Eurocopter P/N B673M30A1002Eurocopter MBB-BK117C-22009-07-06current
Woodward Hrt INCMain Rotor Servo Actuator Assembly HRT30006760-11130006760-111Sikorsky S-76A, S-76B, S-76C2009-06-30current
Moog Components GroupMain Rotor Slip Ring AW6441Sikorsky P/N 92550-04801-101Sikorsky S92A TC# R00024BO2009-04-08current
Lord Corporation, Mechanical Products DivisionMain Rotor Bearing Lord P/N: LB4-1245-2-2Agusta P/N: 3G6220V00153Agusta AB 139, AW1392006-09-20current
Parker Hannifin CORPMain Rotor Servo Assy 388300-101392410-15800-111Sikorsky S92A2006-06-21current
Parker Hannifin CORPMain Rotor Servo Assembly 388300-101392410-15800Sikorsky S-92A2005-10-18current
Lord CorporationMain Rotor Inboard Feathering Bearing LB2-1078-2-1 Dwg. No....222-310-115-115Bell 222B, 222U2005-02-01current
Lord CorporationMain Rotor Outboard Bearing LB2-1078-11-1 Dwg. No....222-310-126-101Bell 222B, 222U, 2302005-02-01current
Lord Corporation, Mechanical Products DivisionMain Rotor Outboard Feathering Bearing LB2-1078-1-1 Dwg. No....222-310-115-111Bell 222B, 222U2005-02-01current
Lord Corporation, Mechanical Products DivisionMain Rotor Inboard Bearing LB2-1078-18-1 Dwg. No....222-310-125-103Bell 222B, 222U, 2302005-02-01current
Lord Corporation, Mechanical Products DivisionMain Rotor Outboard Bearing LB2-1078-11-1 Dwg. No....222-310-126-101Bell 222B, 222U, 2302005-02-01current
Lord CorporationMain Rotor Inboard Bearing LB2-1078-18-1 Dwg. No....222-310-125-103Bell 222B, 222U, 2302005-02-01current
Lord CorporationMain Rotor Outboard Feathering Bearing LB2-1078-1-1 Dwg. No....222-310-115-111Bell 222B, 222U2005-02-01current
Lord Corporation, Mechanical Products DivisionMain Rotor Inboard Feathering Bearing LB2-1078-2-1 Dwg. No....222-310-115-115Bell 222B, 222U2005-02-01current
Parts Manufacturing Associates LLCMain Rotor Blade 206B2100-101Modification PartBell 206A, 206B2004-03-09current
Parts Manufacturing Associates LLCMain Rotor Blade L3160-100-01Modification PartEurocopter France SE.3160, SA.315B, SA.316B2004-03-09current
American Eurocopter LLCMain Rotor Head Balance Provision H341-31-3D-001-1Modification PartEurocopter France SA341G2003-08-10current
American Eurocopter LLCMain Rotor Head Balance Provision H341-31-3D-001-1Modification PartEurocopter France SA341G2003-08-10current
Wagner Aeronautical INCMain Rotor Blade RR-61170-20201Modification PartSikorsky S-61L, S-61N, S-61NM2002-11-17current
Lord Corporation, Mechanical Products DivisionMain Rotor Damper Lord Corp. J-16663-4Bell Helicopter 412-010-145-105Bell 4122001-06-19current
Lord Corporation, Mechanical Products DivisionMain Rotor Damper Lord Corp. J-16663-7Bell Helicopter 412-310-146-103Bell 4122001-06-19current
Rotor Trends LLCMain Rotor Blade L3160-100-01Modification PartEurocopter France SE3160, SA315B, SA316B2001-03-01current
Helicopter Technology CompanyMain Rotor Blade 500P2300-501Modification PartMD Helicopters, Inc. MDHI) (369FF, 500N2000-06-29current
AerometalsMain Rotor Rod 369X21338-3MDHC (Hughes) 369D21338-3MD Helicopters, Inc. MDHI) (369HM, 369HS, 369HE1998-11-16current
Rotor Blades INCMain Rotor Blade 204-011-250-5Modification PartBell SW204, SW204HP, SW2041998-04-02current
Helicopter Technology CompanyMain Rotor Blade 500P2100-301Modification PartMD Helicopters, Inc. MDHI) (369A, 369H, 369HE1997-12-15current
Helicopter Technology CompanyMain Rotor Blade 2100-01Modification PartMD Helicopters, Inc. MDHI) (369D, 369E1997-10-06current
Lord CorporationMain Rotor Damper J-18862-10Eurocopter Deutschland GmbH L621M1003101Eurocopter Deutschland EC1351997-08-17current
Helicopter Technology CompanyMain Rotor Blade 500P2100-101McDonnell Douglas 369D21100-517MD Helicopters, Inc. MDHI) (369D, 369E1996-06-17current
Lord CorporationMain Rotor Flapping Spring LB5-1078-19-1Bell 222-310-117-105Bell 222B, 222U1996-02-29current
Rotor Blades INCMain Rotor Blade RB204-011-250-5Modification PartBell UH-1B (Southern Aero Corp.,...1992-11-18current
Air Methods CORP InternationalMain Rotor Electrostatic Bonding Straps All parts listed on Dwg 141-9006Modification PartBell 4121992-07-19current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Trim Tab P/N 700-301 Rev. N/C dated...Bell 47-110-363 Revision DBell Model 471989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Bushing P/N 700-304 Rev. N/C dated...Bell 75B Revision LBell Model 471989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Lower Drag Plate P/N 700-312 Rev. N/C dated...Bell 47-110-270 Revision KBell Model 471989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Doubler P/N 700-307 Rev. N/C dated...Bell 47-110-356 Revision KBell Model 471989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Trim Tab Assembly P/N 700-219 Rev. N/C dated...Bell P/N 206-015-019Bell Model 206 L/L-1/ L-31989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Trim Tab Assembly P/N 700-217 Rev. N/C dated...Bell P/N 206-015-517Bell Model 206 L/L-1/ L-31989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Grip Pad P/N 700-233 Rev. N/C dated...Bell 206-010-233 Revision CBell Model A/B/L/L-31989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Trim Tab Assembly P/N 700-213 Rev. N/C dated...Bell P/N 206-010-219 Revision FBell Model 206 A/B/L L-1/L-31989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Lower Grip Plate P/N 700-303 Rev. N/C dated...Bell 47-110-376 Revision FBell Model 471989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Wear Pad P/N 700-242 Rev,. N/C...Bell 206-010-242 Revision DBell Model A/B/L1989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Upper Drag Plate P/N 700-311 Rev. N/C dated...Bell 47-110-362 Revision GBell Model 471989-07-02current
Bell Helicopter Textron INC (Formerly Aeronautical Accessories INC)Main Rotor Blade Upper Grip Plate P/N 700-302 Rev. N/C dated...Bell 47-110-377 Revision FBell Model 471989-07-02current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.