# Robinson Helicopter R44 - Type: Aircraft model (FAA registry) - Registry code: 7640120 - Manufacturer (registry): ROBINSON HELICOPTER - Model: R44 - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Reciprocating - Seats: 4 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS H11NM](https://openairdocs.org/tcds/H11NM) (OpenAirDocs) - Holder: Robinson Helicopter Company - Registered aircraft: 551 - Page: https://openairdocs.org/model/robinson-helicopter-r44 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2025-11-07](https://openairdocs.org/ad/2025-11-07): Engine/Transmission Coupling · Robinson Helicopter R44 and R44 II. Effective Jul 11, 2025 - [AD 2024-23-01](https://openairdocs.org/ad/2024-23-01): Main rotor drive system, Rotorcraft flight control · Robinson Helicopter R44 and R44 II. Effective Jan 7, 2025 - [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024 - [AD 2024-20-03](https://openairdocs.org/ad/2024-20-03): Flight Control System · Robinson Helicopter R22 BETA, R22 MARINER, R44 and 1 more. Effective Nov 29, 2024 - [AD 2024-04-02](https://openairdocs.org/ad/2024-04-02): Tail Rotor Blades · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 4 more. Effective Apr 2, 2024 - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 - [AD 2022-19-12](https://openairdocs.org/ad/2022-19-12): Tail Rotor Blades · Robinson Helicopter R44, R44 II and R66. Effective Oct 20, 2022 - [AD 2022-12-08](https://openairdocs.org/ad/2022-12-08): Flight Control System Wiring, Engine Control System Wiring, Engine RPM Indicating System · Robinson Helicopter R22 BETA, R44 and R44 II. Effective Jun 29, 2022 - [AD 2020-08-10](https://openairdocs.org/ad/2020-08-10): Tail Rotor Blades · Robinson Helicopter R44 and R44 II. Effective May 22, 2020 - [AD 2020-05-11](https://openairdocs.org/ad/2020-05-11): Agricultural Spray System · Robinson Helicopter R44 and R44 II with STC SR00286BO. Effective Apr 16, 2020 - [AD 2016-26-04](https://openairdocs.org/ad/2016-26-04): Main Rotor Blades · Robinson Helicopter R44, R44 II and R66. Effective Feb 8, 2017 - [AD 2014-23-16](https://openairdocs.org/ad/2014-23-16): Main Rotor Blades · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jan 9, 2015 - [AD 2013-05-15](https://openairdocs.org/ad/2013-05-15): Emergency floats · Robinson Helicopter R44 and R44 II. Effective Apr 30, 2013 - [AD 2010-24-03](https://openairdocs.org/ad/2010-24-03): Tail rotor · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Dec 29, 2010 - [AD 2007-11-01](https://openairdocs.org/ad/2007-11-01): Seat belt buckle (buckle) assembly · Robinson Helicopter R44 and R44 II. Effective Jun 27, 2007 - [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006 - [AD 95-26-05 R1](https://openairdocs.org/ad/95-26-05-R1): R44 Rotorcraft Flight Manual (RFM) · Robinson Helicopter R44 and R44 II. Effective Jul 6, 2004 - [AD 2003-24-51](https://openairdocs.org/ad/2003-24-51): Main rotor swashplate · Robinson Helicopter R44 and R44 II - [AD 2003-04-05](https://openairdocs.org/ad/2003-04-05): Pitch control bearings (bearings) · Robinson Helicopter R44. Effective Mar 26, 2003 - [AD 2001-20-18](https://openairdocs.org/ad/2001-20-18): Horizontal Stabilizers · Robinson Helicopter R44. Effective Nov 19, 2001 - [AD 2000-07-03](https://openairdocs.org/ad/2000-07-03): Fuel Line Assembly · Robinson Helicopter R44. Effective May 11, 2000 - [AD 2000-08-04](https://openairdocs.org/ad/2000-08-04): Sprag Clutches · Robinson Helicopter R44. Effective May 4, 2000 - [AD 99-23-01](https://openairdocs.org/ad/99-23-01): Grip Assembly P/N A756-6 Rev. A thru 7 N · Robinson Helicopter R44. Effective Dec 8, 1999 - [AD 99-17-17](https://openairdocs.org/ad/99-17-17): Yoke Assembly · Robinson Helicopter R44. Effective Oct 7, 1999 - [AD 99-13-11](https://openairdocs.org/ad/99-13-11): Auxiliary Fuel Tank Sump Drain · Robinson Helicopter R44. Effective Jul 29, 1999 - [AD 99-07-18](https://openairdocs.org/ad/99-07-18): Sprag Clutch · Robinson Helicopter R44. Effective Apr 28, 1999 - [AD 98-22-16](https://openairdocs.org/ad/98-22-16): Main Rotor Blade Skin Fatigue Crack Inspection · Robinson Helicopter R44. Effective Nov 10, 1998 - [AD 98-04-12](https://openairdocs.org/ad/98-04-12): Lateral Cyclic Trim Spring Shaft · Robinson Helicopter R44. Effective Apr 27, 1998 - [AD 98-05-10](https://openairdocs.org/ad/98-05-10): Aluminum Elbows · Robinson Helicopter R44. Effective Mar 18, 1998 - [AD 97-16-02](https://openairdocs.org/ad/97-16-02): Up-Limit Switches · Robinson Helicopter R44. Effective Aug 18, 1997 - [AD 97-02-15](https://openairdocs.org/ad/97-02-15): Main Rotor RPM Sensor Resetting · Robinson Helicopter R44. Effective Mar 4, 1997 - [AD 96-18-22](https://openairdocs.org/ad/96-18-22): Gear Carrier Securing Bolts · Robinson Helicopter R44. Effective Oct 25, 1996 - [AD 95-11-10](https://openairdocs.org/ad/95-11-10): FAA FM - Limitations - Low-G Pushovers · Robinson Helicopter R44. Effective Jul 14, 1995 - [AD 95-09-07](https://openairdocs.org/ad/95-09-07): Cyclic Control System · Robinson Helicopter R44. Effective May 24, 1995 - [AD 94-26-10](https://openairdocs.org/ad/94-26-10): Cyclic Stick Assembly · Robinson Helicopter R44. Effective Jan 11, 1995 Historical (superseded or no longer in force): - [AD 2024-19-11](https://openairdocs.org/ad/2024-19-11) (historical): Engine/Transmission coupling · Robinson Helicopter R44 and R44 II. Effective Oct 31, 2024 - [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021 - [AD 2021-19-08](https://openairdocs.org/ad/2021-19-08) (historical): Tail Rotor Blades · Robinson Helicopter R44 and R44 II. Effective Sep 22, 2021 - [AD 2011-12-10](https://openairdocs.org/ad/2011-12-10) (historical): Main rotor blade · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jul 5, 2011 - [AD 2007-26-12](https://openairdocs.org/ad/2007-26-12) (historical): Blade skin debond · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jan 18, 2008 - [AD 95-26-05](https://openairdocs.org/ad/95-26-05) (historical): Rotorcraft Flight Manual - Limitation Section · Robinson Helicopter R44. Effective Jan 26, 1996 ## Information bulletins (advisory) (18) - [SAIB 2024-05](https://openairdocs.org/saib/2024-05): Engine/Transmission Coupling, Gearmotor Assembly. Issued Oct 29, 2024 - [SAIB 2022-21](https://openairdocs.org/saib/2022-21): EMERGENCY FLOTATION SECTION, Pop-Out Float Under-inflation.. Issued Nov 21, 2022 - [SAIB AIR-22-08](https://openairdocs.org/saib/AIR-22-08): MAIN ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SYSTEM. Issued Apr 11, 2022 - [SAIB AIR-22-03](https://openairdocs.org/saib/AIR-22-03): Robinson Helicopter Company Model R22, R44, and R66 Helicopters; Emergency Locator Transmitter Retention. Issued Mar 3, 2022 - [SAIB AIR-21-14](https://openairdocs.org/saib/AIR-21-14): Robinson R44 and R66 HeliSAS Autopilot/Garmin Primary Flight Display (PFD) Interface. Issued Aug 24, 2021 - [SAIB AIR-21-11](https://openairdocs.org/saib/AIR-21-11): ROTORCRAFT SERVO SYSTEM (JASC 6730). Issued Jul 22, 2021 - [SAIB AIR-21-03](https://openairdocs.org/saib/AIR-21-03): Electrical Power System; Ameri-King RFI DC Filter Smoke/Fire. Issued Jan 28, 2021 - [SAIB SW-20-01](https://openairdocs.org/saib/SW-20-01): Electrical Power System - Battery Electrolyte Leakage. Issued Mar 6, 2020 - [SAIB SW-15-08R1](https://openairdocs.org/saib/SW-15-08R1): Robinson R44 and R44 Main Rotor Blades. Issued Mar 31, 2015 - [SAIB SW-15-08](https://openairdocs.org/saib/SW-15-08) (historical): Robinson R44 Main Rotor Blades. Issued Feb 23, 2015 - [SAIB SW-13-11](https://openairdocs.org/saib/SW-13-11): JASC Code 2810 Fuel Storage Robinson Helicopter Company Bladder Fuel Tank Retrofit. Issued Dec 26, 2012 - [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012 - [SAIB SW-11-15](https://openairdocs.org/saib/SW-11-15): Carbon Monoxide Detectors. Issued Jan 6, 2011 - [SAIB SW-09-07](https://openairdocs.org/saib/SW-09-07): JASC Code 2410 Alternator-Generator Drive, Robinson Helicopter Company Alternator Belts. Issued Jan 30, 2009 - [SAIB SW-07-16](https://openairdocs.org/saib/SW-07-16): Rotor blade skin debonding. Issued Feb 9, 2007 - [SAIB SW-06-55](https://openairdocs.org/saib/SW-06-55): . Issued Jul 13, 2006 - [SAIB SW-06-19](https://openairdocs.org/saib/SW-06-19): . Issued Dec 28, 2005 - [SAIB ASW-95-01](https://openairdocs.org/saib/ASW-95-01): . Issued Jan 10, 1995 ## Registered aircraft (551, first 50) - [N1019V](https://openairdocs.org/aircraft/N1019V): [Qualitair LLC Trustee](https://openairdocs.org/faa-owner/QUALITAIR%20LLC%20TRUSTEE), Michelstadt, S/N 1353 - [N101TV](https://openairdocs.org/aircraft/N101TV): [Sky Helicopters Inc](https://openairdocs.org/faa-owner/SKY%20HELICOPTERS%20INC), [Garland, TX](https://openairdocs.org/faa-place/TX/Garland), built 1998, S/N 0475 - [N102AF](https://openairdocs.org/aircraft/N102AF): [Mjm Enterprises LLC](https://openairdocs.org/faa-owner/MJM%20ENTERPRISES%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2007, S/N 1779 - [N102CV](https://openairdocs.org/aircraft/N102CV): [Pilot In Command LLC](https://openairdocs.org/faa-owner/PILOT%20IN%20COMMAND%20LLC), [Parker, CO](https://openairdocs.org/faa-place/CO/Parker), built 1999, S/N 0570 - [N104EG](https://openairdocs.org/aircraft/N104EG): [Spitzer Helicopter LLC](https://openairdocs.org/faa-owner/SPITZER%20HELICOPTER%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2013, S/N 2266 - [N108DJ](https://openairdocs.org/aircraft/N108DJ): [Agri-Air LLC](https://openairdocs.org/faa-owner/AGRI-AIR%20LLC), [Harrodsburg, KY](https://openairdocs.org/faa-place/KY/Harrodsburg), built 2001, S/N 1060 - [N109B](https://openairdocs.org/aircraft/N109B): [Rotorwing LLC](https://openairdocs.org/faa-owner/ROTORWING%20LLC), [Walnut, IL](https://openairdocs.org/faa-place/IL/Walnut), built 2007, S/N 1743 - [N111LE](https://openairdocs.org/aircraft/N111LE): [Sky Photoshop LLC](https://openairdocs.org/faa-owner/SKY%20PHOTOSHOP%20LLC), [Winter Garden, FL](https://openairdocs.org/faa-place/FL/Winter%20Garden), built 2025, S/N 2817 - [N111VG](https://openairdocs.org/aircraft/N111VG): [N111vg LLC](https://openairdocs.org/faa-owner/N111VG%20LLC), [Princeton, NJ](https://openairdocs.org/faa-place/NJ/Princeton), built 2001, S/N 1053 - [N112GJ](https://openairdocs.org/aircraft/N112GJ): [Spagnoletti Anthony](https://openairdocs.org/faa-owner/SPAGNOLETTI%20ANTHONY), [Spring, TX](https://openairdocs.org/faa-place/TX/Spring), built 1998, S/N 0455 - [N114ER](https://openairdocs.org/aircraft/N114ER): [Ihle Edward A](https://openairdocs.org/faa-owner/IHLE%20EDWARD%20A), [Elmendorf, TX](https://openairdocs.org/faa-place/TX/Elmendorf), S/N 0879 - [N115VC](https://openairdocs.org/aircraft/N115VC): [Poulikakos Aspasia D](https://openairdocs.org/faa-owner/POULIKAKOS%20ASPASIA%20D), Kifissia Athens, built 2000, S/N 0917, Non-citizen corporation, flight hours not reported - [N116VK](https://openairdocs.org/aircraft/N116VK): [Airborne LLC](https://openairdocs.org/faa-owner/AIRBORNE%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2018, S/N 2547 - [N117BA](https://openairdocs.org/aircraft/N117BA): [Chopper Ag Services LLC](https://openairdocs.org/faa-owner/CHOPPER%20AG%20SERVICES%20LLC), [Samson, AL](https://openairdocs.org/faa-place/AL/Samson), built 2017, S/N 2512 - [N119SM](https://openairdocs.org/aircraft/N119SM): [Prestige Worldwide Helicopters LLC](https://openairdocs.org/faa-owner/PRESTIGE%20WORLDWIDE%20HELICOPTERS%20LLC), [Waukesha, WI](https://openairdocs.org/faa-place/WI/Waukesha), built 2000, S/N 0918 - [N11RA](https://openairdocs.org/aircraft/N11RA): [Monkey Biziness LLC](https://openairdocs.org/faa-owner/MONKEY%20BIZINESS%20LLC), [Cherryville, NC](https://openairdocs.org/faa-place/NC/Cherryville), S/N 1951 - [N120AF](https://openairdocs.org/aircraft/N120AF): [Air First LLC](https://openairdocs.org/faa-owner/AIR%20FIRST%20LLC), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), built 1994, S/N 2055 - [N122JG](https://openairdocs.org/aircraft/N122JG): [Republic Construction Industries LLC](https://openairdocs.org/faa-owner/REPUBLIC%20CONSTRUCTION%20INDUSTRIES%20LLC), [Englewood, OH](https://openairdocs.org/faa-place/OH/Englewood), S/N 0845 - [N127DM](https://openairdocs.org/aircraft/N127DM): [Aircraft Leasing LLC](https://openairdocs.org/faa-owner/AIRCRAFT%20LEASING%20LLC), [Peoria, IL](https://openairdocs.org/faa-place/IL/Peoria), built 2017, S/N 30023 - [N128EH](https://openairdocs.org/aircraft/N128EH): [Jen Air LLC](https://openairdocs.org/faa-owner/JEN%20AIR%20LLC), [Greenwood, MS](https://openairdocs.org/faa-place/MS/Greenwood), built 2003, S/N 1305 - [N129AF](https://openairdocs.org/aircraft/N129AF): [Nelson Flyers Inc](https://openairdocs.org/faa-owner/NELSON%20FLYERS%20INC), [Louise, TX](https://openairdocs.org/faa-place/TX/Louise), S/N 0946 - [N132TC](https://openairdocs.org/aircraft/N132TC): [Worthington Loren Daniel](https://openairdocs.org/faa-owner/WORTHINGTON%20LOREN%20DANIEL), [Caldwell, ID](https://openairdocs.org/faa-place/ID/Caldwell), built 2002, S/N 1259 - [N135WB](https://openairdocs.org/aircraft/N135WB): [Tim Butterfield Drilling Inc](https://openairdocs.org/faa-owner/TIM%20BUTTERFIELD%20DRILLING%20INC), [Somerset, WI](https://openairdocs.org/faa-place/WI/Somerset), built 2001, S/N 1093 - [N137MT](https://openairdocs.org/aircraft/N137MT): [T&Tb Investments LLC](https://openairdocs.org/faa-owner/T%26TB%20INVESTMENTS%20LLC), [Horseshoe Bay, TX](https://openairdocs.org/faa-place/TX/Horseshoe%20Bay), built 2001, S/N 1134 - [N137TD](https://openairdocs.org/aircraft/N137TD): [Ww Flying Services LLC](https://openairdocs.org/faa-owner/WW%20FLYING%20SERVICES%20LLC), [Waller, TX](https://openairdocs.org/faa-place/TX/Waller), built 2013, S/N 2300 - [N141CD](https://openairdocs.org/aircraft/N141CD): [Sky Helicopters Inc](https://openairdocs.org/faa-owner/SKY%20HELICOPTERS%20INC), [Desoto, TX](https://openairdocs.org/faa-place/TX/Desoto), built 2023, S/N 30091 - [N141DC](https://openairdocs.org/aircraft/N141DC): [Magnum Leasing LLC](https://openairdocs.org/faa-owner/MAGNUM%20LEASING%20LLC), [Waterford, MI](https://openairdocs.org/faa-place/MI/Waterford), built 2005, S/N 1495 - [N144AF](https://openairdocs.org/aircraft/N144AF): [Helius Aircraft 144af LLC](https://openairdocs.org/faa-owner/HELIUS%20AIRCRAFT%20144AF%20LLC), [Conroe, TX](https://openairdocs.org/faa-place/TX/Conroe), built 2007, S/N 1787 - [N144AH](https://openairdocs.org/aircraft/N144AH): [Atomic Helicopters LLC](https://openairdocs.org/faa-owner/ATOMIC%20HELICOPTERS%20LLC), [Seattle, WA](https://openairdocs.org/faa-place/WA/Seattle), built 2001, S/N 0865 - [N144CD](https://openairdocs.org/aircraft/N144CD): [Little Gator Aviation Inc](https://openairdocs.org/faa-owner/LITTLE%20GATOR%20AVIATION%20INC), [Fairfield, NC](https://openairdocs.org/faa-place/NC/Fairfield), built 1999, S/N 0602 - [N144DJ](https://openairdocs.org/aircraft/N144DJ): [Saybrook Offshore LLC](https://openairdocs.org/faa-owner/SAYBROOK%20OFFSHORE%20LLC), [Guilford, CT](https://openairdocs.org/faa-place/CT/Guilford), built 2017, S/N 2467 - [N144DS](https://openairdocs.org/aircraft/N144DS): [Stevenson William E](https://openairdocs.org/faa-owner/STEVENSON%20WILLIAM%20E), [Sutton, AK](https://openairdocs.org/faa-place/AK/Sutton), built 2000, S/N 0715 - [N144JD](https://openairdocs.org/aircraft/N144JD): [Deviation LLC](https://openairdocs.org/faa-owner/DEVIATION%20LLC), [Raleigh, NC](https://openairdocs.org/faa-place/NC/Raleigh), built 2000, S/N 0938 - [N144JG](https://openairdocs.org/aircraft/N144JG): [Montana Aircraft Trust Inc Trustee](https://openairdocs.org/faa-owner/MONTANA%20AIRCRAFT%20TRUST%20INC%20TRUSTEE), [Bozeman, MT](https://openairdocs.org/faa-place/MT/Bozeman), built 2000, S/N 0859 - [N144JJ](https://openairdocs.org/aircraft/N144JJ): [Qcp Group LLC](https://openairdocs.org/faa-owner/QCP%20GROUP%20LLC), [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette), built 1999, S/N 0689 - [N144KW](https://openairdocs.org/aircraft/N144KW): [Aloha Helicopter Tours LLC](https://openairdocs.org/faa-owner/ALOHA%20HELICOPTER%20TOURS%20LLC), [Lihue, HI](https://openairdocs.org/faa-place/HI/Lihue), built 2009, S/N 12805 - [N144MN](https://openairdocs.org/aircraft/N144MN): [Haynes Michael W](https://openairdocs.org/faa-owner/HAYNES%20MICHAEL%20W), [Odessa, TX](https://openairdocs.org/faa-place/TX/Odessa), built 2006, S/N 1555 - [N144RF](https://openairdocs.org/aircraft/N144RF): [Rio Farms LLC](https://openairdocs.org/faa-owner/RIO%20FARMS%20LLC), [King City, CA](https://openairdocs.org/faa-place/CA/King%20City), built 2002, S/N 1223 - [N144RP](https://openairdocs.org/aircraft/N144RP): [Benrud Aviation LLC](https://openairdocs.org/faa-owner/BENRUD%20AVIATION%20LLC), [Rice, MN](https://openairdocs.org/faa-place/MN/Rice), S/N 0766 - [N144VG](https://openairdocs.org/aircraft/N144VG): [Vista Grande Helicopters Inc](https://openairdocs.org/faa-owner/VISTA%20GRANDE%20HELICOPTERS%20INC), [Merritt Island, FL](https://openairdocs.org/faa-place/FL/Merritt%20Island), S/N 1101 - [N144WB](https://openairdocs.org/aircraft/N144WB): [Universal Aviators Academy Inc](https://openairdocs.org/faa-owner/UNIVERSAL%20AVIATORS%20ACADEMY%20INC), [El Monte, CA](https://openairdocs.org/faa-place/CA/El%20Monte), built 1998, S/N 0545 - [N144WT](https://openairdocs.org/aircraft/N144WT): [Performancez LLC](https://openairdocs.org/faa-owner/PERFORMANCEZ%20LLC), [Nederland, TX](https://openairdocs.org/faa-place/TX/Nederland), S/N 0601 - [N146SG](https://openairdocs.org/aircraft/N146SG): [Vertical Flight LLC](https://openairdocs.org/faa-owner/VERTICAL%20FLIGHT%20LLC), [Safety Harbor, FL](https://openairdocs.org/faa-place/FL/Safety%20Harbor), built 2005, S/N 1496 - [N148RH](https://openairdocs.org/aircraft/N148RH): [Plum Aggregate LLC](https://openairdocs.org/faa-owner/PLUM%20AGGREGATE%20LLC), [Porter, TX](https://openairdocs.org/faa-place/TX/Porter), built 2017, S/N 14048 - [N14MY](https://openairdocs.org/aircraft/N14MY): [South Florida Helicopters Inc](https://openairdocs.org/faa-owner/SOUTH%20FLORIDA%20HELICOPTERS%20INC), [Indiantown, FL](https://openairdocs.org/faa-place/FL/Indiantown), S/N 1149 - [N150B](https://openairdocs.org/aircraft/N150B): built 2002, S/N 1199, Registration pending - [N150XT](https://openairdocs.org/aircraft/N150XT): [Rice John D](https://openairdocs.org/faa-owner/RICE%20JOHN%20D), [Maddock, ND](https://openairdocs.org/faa-place/ND/Maddock), built 2007, S/N 1746 - [N151CD](https://openairdocs.org/aircraft/N151CD): [Aloha Helicopter Tours LLC](https://openairdocs.org/faa-owner/ALOHA%20HELICOPTER%20TOURS%20LLC), [Lihue, HI](https://openairdocs.org/faa-place/HI/Lihue), built 2007, S/N 1705 - [N153WF](https://openairdocs.org/aircraft/N153WF): [Southern Aircraft Consultancy Inc Trustee](https://openairdocs.org/faa-owner/SOUTHERN%20AIRCRAFT%20CONSULTANCY%20INC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 1995, S/N 0152 - [N154A](https://openairdocs.org/aircraft/N154A): [Bills Helicopter Service LLC](https://openairdocs.org/faa-owner/BILLS%20HELICOPTER%20SERVICE%20LLC), [Woodlawn, VA](https://openairdocs.org/faa-place/VA/Woodlawn), S/N 0558 All 551: https://openairdocs.org/model/robinson-helicopter-r44/aircraft.md ## NTSB investigations (195, 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 ERA27LA017](https://openairdocs.org/ntsb/ERA27LA017), Oct 20, 2026: Robinson Helicopter R44 (N744CJ), Kinnelon, NJ, investigation ongoing - [NTSB ANC26LA082](https://openairdocs.org/ntsb/ANC26LA082), Aug 9, 2026: Robinson Helicopter R44 (N197HL), Macedonia, IA, substantial damage, investigation ongoing - [NTSB CEN26LA260](https://openairdocs.org/ntsb/CEN26LA260), Jul 20, 2026: Robinson Helicopter R44 (N224RH), Emerson, IA, substantial damage. Probable cause: The failure of the pilot to verify the loading hose had been disconnected before taking off and the failure of the loader to disconnect the fuel hose from the helicopter. - [NTSB CEN26LA289](https://openairdocs.org/ntsb/CEN26LA289), Jul 18, 2026: Robinson Helicopter R44 Raven 1 (N26EH), Scribner, NE, substantial damage. Probable cause: The pilot's failure to maintain clearance from power lines while maneuvering at low-level altitude during an agricultural operation. - [NTSB CEN26LA259](https://openairdocs.org/ntsb/CEN26LA259), Jul 18, 2026: Robinson Helicopter R44 (N484AT), Adair, IA, substantial damage, investigation ongoing - [NTSB ANC26LA051](https://openairdocs.org/ntsb/ANC26LA051), Jun 13, 2026: Robinson R44 (N336SG), Pembroke Pines, FL, substantial damage, investigation ongoing - [NTSB ERA26LA234](https://openairdocs.org/ntsb/ERA26LA234), Jun 8, 2026: Robinson Helicopter R44 (N144CD), Mayesville, SC, substantial damage. Probable cause: The pilot’s failure to remain clear of a power line during an aerial application flight. - [NTSB ANC26FA021](https://openairdocs.org/ntsb/ANC26FA021), Mar 23, 2026: Robinson Helicopter R44 (N478AT), Boynton Beach, FL, destroyed, 2 fatal, investigation ongoing - [NTSB ERA26LA048](https://openairdocs.org/ntsb/ERA26LA048), Nov 14, 2025: Robinson Helicopter R44 (N668TM), Cookeville, TN, substantial damage. Probable cause: The pilot’s failure to maintain an appropriate decent rate during approach, resulting in a hard landing. - [NTSB CEN25LA389](https://openairdocs.org/ntsb/CEN25LA389), Sep 19, 2025: Robinson Helicopter R44 (N831VA), Decatur, TX, substantial damage. Probable cause: The pilot’s loss of control during an off-airport, pinnacle landing, and the flight instructor’s inadequate supervision of the instructional flight. - [NTSB WPR25LA203](https://openairdocs.org/ntsb/WPR25LA203), Jul 6, 2025: Robinson Helicopter R44 (N715SG), Park City, UT, substantial damage. Probable cause: The pilot’s failure to maintain rotor rpm during an approach to landing in a mountainous area, which resulted in a collision with terrain. - [NTSB CEN25FA124](https://openairdocs.org/ntsb/CEN25FA124), Mar 15, 2025: Robinson Helicopter R44 (N331ES), Danville, VA, destroyed, 1 fatal, investigation ongoing - [NTSB CEN25LA067](https://openairdocs.org/ntsb/CEN25LA067), Dec 31, 2024: Robinson Helicopter R44 (N441HQ), Galveston, TX, substantial damage. Probable cause: The pilot’s failure to maintain terrain clearance during the takeoff from the helipad in high and gusting wind conditions, that resulted in the right skid extension embedding in the artificial turf,… - [NTSB CEN24LA343](https://openairdocs.org/ntsb/CEN24LA343), Sep 6, 2024: Robinson Helicopter R44 (N896J), Grand Forks, ND, substantial damage. Probable cause: The student pilot’s failure to maintain helicopter control which resulted in impact with the ground. Contributing to the outcome was the flight instructor’s delayed remedial action. - [NTSB ANC24LA077](https://openairdocs.org/ntsb/ANC24LA077), Aug 19, 2024: Robinson R44 (N740RH), Honolulu, HI, substantial damage. Probable cause: A failure of the flex plate yoke flange assembly due to incorrectly torqued bolts. Contributing was the maintenance personnel’s inadequate inspection of the tail rotor flex plate assembly. - [NTSB CEN24LA303](https://openairdocs.org/ntsb/CEN24LA303), Aug 3, 2024: Robinson Helicopter R44 (N225ML), Bryant, IA, substantial damage. Probable cause: A loss of engine power during takeoff for reasons that could not be determined, resulting in impact with terrain. - [NTSB WPR24LA251](https://openairdocs.org/ntsb/WPR24LA251), Jul 18, 2024: Robinson Helicopter R44 (N886JB), Carlsbad, CA, substantial damage. Probable cause: The pilot’s failure to maintain lateral control of the helicopter while departing with a crosswind, which resulted in a dynamic rollover. - [NTSB ANC24FA063](https://openairdocs.org/ntsb/ANC24FA063), Jul 11, 2024: Robinson Helicopter R44 (N144KW), Kekaha, HI, substantial damage, 3 fatal. Probable cause: An encounter with turbulence due to downdraft winds that resulted in mast bumping and an in-flight breakup. - [NTSB ERA24LA166](https://openairdocs.org/ntsb/ERA24LA166), Apr 6, 2024: Robinson Helicopter R44 (N234ZT), Key Biscayne, FL, substantial damage. Probable cause: A loss of engine power for reasons that could not be determined. - [NTSB GAA24WA123](https://openairdocs.org/ntsb/GAA24WA123), Mar 20, 2024: Robinson Helicopter R44 (N5050), Suben, Austria, substantial damage - [NTSB CEN24LA135](https://openairdocs.org/ntsb/CEN24LA135), Mar 13, 2024: Robinson Helicopter R44 (N3040P), Knox City, TX, substantial damage. Probable cause: The pilot’s failure to maintain directional control during takeoff, which resulted in a rollover and an impact with terrain. - [NTSB ERA24LA079](https://openairdocs.org/ntsb/ERA24LA079), Dec 30, 2023: Robinson Helicopter R44 (N828AK), Daytona Beach, FL, substantial damage. Probable cause: The UAS operator’s failure to operate within the limitations of the COA that he was using to operate inside class C airspace, which resulted in a collision between the UAS and the helicopter. - [NTSB OPS24LA011](https://openairdocs.org/ntsb/OPS24LA011), Dec 9, 2023: Robinson Helicopter R44 (N744AF), North Las Vegas, NV, incident, no damage. Probable cause: The local controller’s loss of situational awareness, inadequate provision of traffic advisory or safety alert information, and lack of positive control, that resulted in a near-midair collision. - [NTSB CEN24LA027](https://openairdocs.org/ntsb/CEN24LA027), Oct 26, 2023: Robinson Helicopter R44 (N141CD), Rowlett, TX, substantial damage. Probable cause: A malfunction of the helicopter’s Engine Monitoring Unit (EMU)/Governor Controller for undetermined reasons. Contributing to the accident was the flight instructor’s failure to turn off the… - [NTSB CEN24LA004](https://openairdocs.org/ntsb/CEN24LA004), Oct 1, 2023: Robinson Helicopter R44 (N379SH), Hochatown, OK, substantial damage. Probable cause: A total loss of engine power during a practice autorotation due to the improper engine idle setting and rigging of the carburetor heat control which resulted in a hard landing. - [NTSB ERA23LA350](https://openairdocs.org/ntsb/ERA23LA350), Aug 26, 2023: Robinson Helicopter R44 (N4147Q), Immokalee, FL, substantial damage. Probable cause: The flight instructor’s inadequate supervision of the student pilot during hover flight, which resulted in main rotor blade contact with the ground after the student pilot applied a sudden control… - [NTSB CEN23LA328](https://openairdocs.org/ntsb/CEN23LA328), Jul 26, 2023: Robinson Helicopter R44 (N467HA), Hanlontown, IA, substantial damage. Probable cause: The pilot’s failure to maintain clearance from a cable during spray operations. - [NTSB ERA23LA287](https://openairdocs.org/ntsb/ERA23LA287), Jul 4, 2023: Robinson Helicopter R44 (N7507X), Myrtle Beach, SC, substantial damage. Probable cause: The pilot’s failure to maintain control of the helicopter during a hover taxi, which resulted in a rollover. - [NTSB CEN23LA219](https://openairdocs.org/ntsb/CEN23LA219), May 31, 2023: Robinson Helicopter R44 (N7102Z), Pontiac, MI, substantial damage. Probable cause: The flight crew’s inadequate compensation for gusting wind, and the flight instructor’s delayed remedial action, which resulted in impact with the ground. - [NTSB CEN23LA130](https://openairdocs.org/ntsb/CEN23LA130), Mar 11, 2023: Robinson Helicopter R44 (N4164T), De Kalb, TX, substantial damage. Probable cause: The pilot’s inability to maintain control of the helicopter due to his failure to maintain rotor speed. Contributing to the accident was the failure of the helicopter’s low rotor speed warning system. - [NTSB CEN23LA086](https://openairdocs.org/ntsb/CEN23LA086), Jan 10, 2023: Robinson Helicopter R44 (N811S), Fowlerton, TX, substantial damage. Probable cause: The pilot’s failure to maintain clearance with trees, which resulted in an uncontrollable spin due to tail rotor damage. - [NTSB ERA23FA070](https://openairdocs.org/ntsb/ERA23FA070), Nov 22, 2022: Robinson Helicopter R44 (N7094J), Charlotte, NC, substantial damage, 2 fatal. Probable cause: The inadequate inspections of the forward left control rod end attachment hardware to the stationary swashplate by the pilot and by maintenance personnel, resulting in an eventual loosening and… - [NTSB WPR23LA041](https://openairdocs.org/ntsb/WPR23LA041), Nov 18, 2022: Robinson Helicopter R44 (N4050P), Las Vegas, NV, minor damage. Probable cause: The student helicopter pilot’s failure to follow the tower controller’s landing instructions, which resulted in a midair collision. - [NTSB ERA23LA021](https://openairdocs.org/ntsb/ERA23LA021), Oct 14, 2022: Robinson Helicopter R44 (N306MB), Daytona Beach, FL, substantial damage. Probable cause: The pilot’s misjudged landing point which resulted in a loss of control and collision with terrain. - [NTSB WPR22LA363](https://openairdocs.org/ntsb/WPR22LA363), Sep 30, 2022: Robinson Helicopter R44 (N297SU), Cedar City, UT, substantial damage. Probable cause: A partial loss of engine power due to a damaged cylinder intake valve and subsequent collision with terrain during an autorotation. - [NTSB CEN22LA404](https://openairdocs.org/ntsb/CEN22LA404), Aug 30, 2022: Robinson Helicopter R44 (N7048C), Beardsley, MN, substantial damage. Probable cause: The pilot’s failure to maintain aircraft control during the approach to land that resulted in an excessive descent rate and impact with terrain. - [NTSB WPR22LA329](https://openairdocs.org/ntsb/WPR22LA329), Aug 26, 2022: Robinson Helicopter R44 Clipper 1 (N240RM), Deadhorse, AK, substantial damage. Probable cause: The pilot's failure to maintain helicopter control during a descent, which resulted in a collision with terrain. - [NTSB ERA22LA357](https://openairdocs.org/ntsb/ERA22LA357), Aug 3, 2022: Robinson Helicopter R44 (N45CA), Leghighton, PA, substantial damage. Probable cause: The pilot’s improper recovery from a bounced landing on a slope, which resulted in dynamic rollover. - [NTSB CEN22LA234](https://openairdocs.org/ntsb/CEN22LA234), Jun 6, 2022: Robinson Helicopter R44 (N94WC), Henderson, TX, substantial damage. Probable cause: The partial loss of engine power in a hover due to a stuck exhaust valve. - [NTSB ERA22LA256](https://openairdocs.org/ntsb/ERA22LA256), May 26, 2022: Robinson Helicopter R44 (N132TC), North Myrtle Beach, SC, substantial damage. Probable cause: The fractured attachment lug on the forward clutch shaft yoke due to fatigue failure with multiple origins. - [NTSB ERA22LA168](https://openairdocs.org/ntsb/ERA22LA168), Mar 26, 2022: Robinson Helicopter R44 (N288L), Myrtle Beach, SC, substantial damage. Probable cause: Vibration in the airframe and flight controls for reasons that could not be determined based on the available evidence. - [NTSB CEN22FA151](https://openairdocs.org/ntsb/CEN22FA151), Mar 25, 2022: Robinson Helicopter R44 (N514CD), Rowlett, TX, destroyed, 2 fatal. Probable cause: A loss of helicopter control while maneuvering, which resulted in main rotor blade contact with the tailboom in flight, tail boom separation, and an uncontrolled descent. - [NTSB ERA22LA131](https://openairdocs.org/ntsb/ERA22LA131), Feb 19, 2022: Robinson Helicopter R44 (N544SB), Miami Beach, FL, substantial damage. Probable cause: A loss of engine power due to a stuck valve, which resulted in an autorotation and a hard landing in water. - [NTSB CEN21LA350](https://openairdocs.org/ntsb/CEN21LA350), Aug 4, 2021: Robinson Helicopter R44 (N775AK), Waukon, IA, substantial damage. Probable cause: The pilot’s failure to maintain adequate clearance from a powerline during an agricultural application pass. - [NTSB CEN21LA452](https://openairdocs.org/ntsb/CEN21LA452), Jul 20, 2021: Robinson Helicopter R44 (N44XB), Mineral Point, WI, substantial damage. Probable cause: The pilot’s failure to see and avoid a wire during an aerial application flight, resulting in a collision with the wire. - [NTSB ERA21FA200](https://openairdocs.org/ntsb/ERA21FA200), May 2, 2021: Robinson Helicopter R44 (N4528T), Wingate, NC, substantial damage, 1 fatal. Probable cause: The pilot’s failure to maintain clearance from a power line during a low-level aerial application flight, resulting in tail rotor impact with the power line, a loss of control, and subsequent impact… - [NTSB ERA21LA191](https://openairdocs.org/ntsb/ERA21LA191), Apr 23, 2021: Robinson Helicopter R44 (N4055N), Forkston, PA, destroyed, 1 fatal. Probable cause: The pilot’s inadequate preflight weather planning, which resulted in an inadvertent encounter with instrument meteorological conditions at night, spatial disorientation, and collision with terrain. - [NTSB CEN21LA184](https://openairdocs.org/ntsb/CEN21LA184), Apr 5, 2021: Robinson Helicopter R44 (N8348X), Johnson, KS, substantial damage. Probable cause: The pilot's inadequate pedal application during a transition to hover, which resulted in a loss of yaw control and a subsequent impact with terrain. - [NTSB CEN21LA155](https://openairdocs.org/ntsb/CEN21LA155), Feb 26, 2021: Robinson Helicopter R44 (N7184N), Dunn, TX, substantial damage. Probable cause: The loss of rotor RPM for reasons that could not be determined based on available evidence. - [NTSB CEN21LA095](https://openairdocs.org/ntsb/CEN21LA095), Dec 20, 2020: Robinson Helicopter R44 (N3264U), Morris, IL, substantial damage. Probable cause: The pilot's inadequate pedal application during liftoff with a tailwind, which resulted in a loss of yaw control and a subsequent impact with terrain. All 195: https://openairdocs.org/model/robinson-helicopter-r44/ntsb.md ## FAA accident and incident reports (221, 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 20260809012429A](https://openairdocs.org/incident/20260809012429A), Aug 9, 2026: Robinson Helicopter R44 (N197HL), Macedonia, IA, Substantial damage. Aircraft failed to maintain a positive rate-of-climb and adequate rotor RPM after takeoff from the tender truck resulting in hard landing in corn field. - [Accident 20260720008389A](https://openairdocs.org/incident/20260720008389A), Jul 20, 2026: Robinson Helicopter R44 (N224RH), Red Oak, IA, Substantial damage. Pilot lost control during take off from elevated platform with ground crew fueling hose connected to rotorcraft. - [Accident 20260718010589A](https://openairdocs.org/incident/20260718010589A), Jul 18, 2026: Robinson Helicopter R44 (N26EH), Scribner, NE, Substantial damage. Pilot struck a power line while pollinating a field with a rotorcraft 2 nautical miles northwest of kscb resulting in damage to the main rotor blades and… - [Accident 20260718009219A](https://openairdocs.org/incident/20260718009219A), Jul 18, 2026: Robinson Helicopter R44 (N484AT), Adair, IA, Substantial damage. Pilot-in-command drooped rotor RPM while performing aerial application, then initiated an autorotation from a low altitude into a cornfield. Upon the main… - [Accident 20260613008149A](https://openairdocs.org/incident/20260613008149A), Jun 13, 2026: Robinson Helicopter R44 (N336SG), Pembroke Pines, FL, Destroyed. Robinson R-44 rotorcraft [privacy data omitted] attempting to takeoff lost control impacted the ground and another parked Cessna 421C [privacy data omitted]… - [Accident 20260608006279A](https://openairdocs.org/incident/20260608006279A), Jun 8, 2026: Robinson Helicopter R44 (N144CD), Lynchburg, SC, Substantial damage. On June 8, 2026, at 1515 (EDT), a Robinson astro R-44 helicopter struck a high-tension powerline in between two corn fields and subsequently impacted terrain… - [Accident 20260323002759A](https://openairdocs.org/incident/20260323002759A), Mar 23, 2026: Robinson Helicopter R44 (N478AT), Boynton Beach, FL, Destroyed, 2 fatal. On March 23, 2026, about 1221 eastern daylight time, a Robinson R44 raven I helicopter was destroyed when it was involved in an accident near Boynton Beach,… - [Accident 20251114018119A](https://openairdocs.org/incident/20251114018119A), Nov 14, 2025: Robinson Helicopter R44 (N668TM), Cookeville, TN, Substantial damage. On November 15, at approximately 16:15 CST, the pilot arrived at the aircraft and conducted a full preflight inspection of the Robinson R44 R1 in accordance… - [Accident 20250919013159A](https://openairdocs.org/incident/20250919013159A), Sep 19, 2025: Robinson Helicopter R44 (N831VA), Alvord, TX, Substantial damage. During a pinacle landing, the main rotor struck the tail rotor and gearbox assembly tearing the tailsection, tailrotor and gearbox from the aircraft. - [Accident 20250706020269A](https://openairdocs.org/incident/20250706020269A), Jul 6, 2025: Robinson Helicopter R44 (N715SG), Heber City, UT, Substantial damage. This flight was conducted under part 91 with two family members on board. The aircraft departed from the south valley regional airport, ksvr with all four… - [Accident 20250315005829A](https://openairdocs.org/incident/20250315005829A), Mar 15, 2025: Robinson R-44 (N331ES), Danville, VA, Destroyed, 1 fatal. About 1438, the pilot completed a sightseeing flight and dropped the two passengers off at their home. According to one of the passengers, the pilot ended the… - [Accident 20241231019019A](https://openairdocs.org/incident/20241231019019A), Dec 31, 2024: Robinson Helicopter R44 (N441HQ), Galveston, TX, Substantial damage. Aircraft was running on the ground with pilot on board. Pilot rolled up throttle to lift and reposition aircraft to adjacent pad on right side of aircraft. As… - [Incident 20241012015539I](https://openairdocs.org/incident/20241012015539I), Oct 12, 2024: Robinson Helicopter R44 (N144VG), Merritt Island, FL, Minor damage. Pilot provided a pre-sale flight demonstration of the accident aircraft to a potential buyer on 10/12/2024. The pilot attempted to hover-taxi the aircraft to a… - [Accident 20240906011949A](https://openairdocs.org/incident/20240906011949A), Sep 6, 2024: Robinson Helicopter R44 (N896J), Grand Forks, ND, Substantial damage. The aircraft doing hover practice in the delta landing zone area at gfk airport. Video evidence shows the aircraft in a stable hover then the aircraft is seen… - [Accident 20240818010729A](https://openairdocs.org/incident/20240818010729A), Aug 18, 2024: Robinson Helicopter R44 (N740RH), Honolulu, HI, Substantial damage. On Sunday, aug 18, 2024, pilot boarded Robinson R44 with intent to fly customers on a scheduled air tour. Pilot started engine and engaged the clutch as the… - [Accident 20240803018919A](https://openairdocs.org/incident/20240803018919A), Aug 3, 2024: Robinson Helicopter R44 (N225ML), Bryant, IA, Substantial damage. Pilot reported decrease in rotor RPM shortly after lifting off from tender truck. Helicopter contacted terrain causing it to roll on its side. - [Incident 20240802010449I](https://openairdocs.org/incident/20240802010449I), Aug 2, 2024: Robinson Helicopter R44 (N287LH), Philadelphia, PA, No damage. On a night, VFR cross country flight from ewr - phl the pilot claimed he encountered unforeseen headwinds which increased his planned flying time. The "low… - [Accident 20240718013149A](https://openairdocs.org/incident/20240718013149A), Jul 18, 2024: Robinson Helicopter R44 (N886JB), Carlsbad, CA, Substantial damage. Pilot lifted aircraft off helicopter platform for third solo flight. As collective was raised aircraft immediately went into dynamic rollover, slid off right… - [Accident 20240711008479A](https://openairdocs.org/incident/20240711008479A), Jul 11, 2024: Robinson Helicopter R44 (N144KW), Wainiha, HI, Destroyed, 3 fatal. The accident helicopter departed on an air tour out of lihue (lih) at appx 12:30 HST. The helicopter was occupied by 1 pilot and 2 passengers who were seated… - [Accident 20240406004099A](https://openairdocs.org/incident/20240406004099A), Apr 6, 2024: Robinson Helicopter R44 (N234ZT), Key Biscayne, FL, Destroyed. Part 91 operation Robinson R44, registration [privacy data omitted] serial number 30027 departing miami executive airport (ktmb) to eleuthera Bahamas, with one… - [Accident 20240313002029A](https://openairdocs.org/incident/20240313002029A), Mar 13, 2024: Robinson Helicopter R44 (N3040P), Knox City, TX, Substantial damage. On March 13, 2024, at approximately 1200, a Robinson R44 helicopter, was involved in a dynamic rollover during takeoff at the Knox City, Texas airport (F85).… - [Accident 20231230020052A](https://openairdocs.org/incident/20231230020052A), Dec 30, 2023: Robinson Helicopter R44 (N828AK), Daytona Beach, FL, Substantial damage. December 30, 2023, 1400 local time; a helicopeter, R-44, returning from an air tour operation, part 91, with one pilot and two passengers on board and during… - [Incident 20231028015349I](https://openairdocs.org/incident/20231028015349I), Oct 28, 2023: Robinson R44 (N328SS), Hnl, HI, No damage. Robinson R44 conducting part 135 flight out of Hnl; pilot noted high manifold pressure required after take off and performed precautionary landing off airport.… - [Accident 20231026021019A](https://openairdocs.org/incident/20231026021019A), Oct 26, 2023: Robinson Helicopter R44 (N141CD), Rowlett, TX, Substantial damage. On 10/26/2023 at approximately 4:15PM an R-44 helicopter [privacy data omitted] departed the Garland heliport (hqz) and proceeded on a pilot training flight.… - [Accident 20231001014119A](https://openairdocs.org/incident/20231001014119A), Oct 1, 2023: Robinson Helicopter R44 (N379SH), Hochatown, OK, Substantial damage. After departing a private heliport in Hochatown, OK the pilot maneuvered the aircraft at 400 feet AGL to practice an auto-rotation maneuver in a field 0.3… - [Accident 20230826013719A](https://openairdocs.org/incident/20230826013719A), Aug 26, 2023: Robinson Helicopter R44 (N4147Q), Immokalee, FL, Destroyed. Part 61 operation, 2008 Robinson Helicopter R44 serial number 1844, [privacy data omitted], registered to [privacy data omitted]a demonstration flight R44… - [Accident 20230726008039A](https://openairdocs.org/incident/20230726008039A), Jul 26, 2023: Robinson Helicopter R44 (N467HA), Hanlontown, IA, Substantial damage. Shortly after entering first application run, pilot noticed powerline crossing his flight path about 20 feet ahead. Following the wire strike, pilot performed… - [Accident 20230704006689A](https://openairdocs.org/incident/20230704006689A), Jul 4, 2023: Robinson Helicopter R44 (N7507X), Myrtle Beach, SC, Substantial damage. Pilot on a 91.147 air tour operation took toof off from helipad with passengers on board. After hover and going into a forward motion, pilot notice his door… - [Accident 20230531010789A](https://openairdocs.org/incident/20230531010789A), May 31, 2023: Robinson Helicopter R44 (N7102Z), Waterford, MI, Substantial damage. Pilot was instructing hover techniques and retook flight controls and failed to notice a rearward moment imparted by the student. The helicopter tail hit the… - [Accident 20230310002819A](https://openairdocs.org/incident/20230310002819A), Mar 10, 2023: Robinson Helicopter R44 (N4164T), Dekalb, TX, Substantial damage. On a feral hogs hunting trip, PIC reported a loss of power forced him to make an emergency landing. - [Accident 20230110000379A](https://openairdocs.org/incident/20230110000379A), Jan 10, 2023: Robinson Helicopter R44 (N811S), Fowlerton, TX, Substantial damage. Pilot was herding cattle. One steer attempted to break from herd. Pilot turned helicopter to cut off warward steer. Heard a bang and lost tailrotor authority… - [Accident 20221122020469A](https://openairdocs.org/incident/20221122020469A), Nov 22, 2022: Robinson Helicopter R44 (N7094J), Charlotte, NC, Destroyed, 2 fatal. [privacy data omitted], A local Charlotte, NC tv station news gathering helicopter, departed NC90 conducting a part 91 flight with the pilot and a tv station… - [Accident 20221118021912A](https://openairdocs.org/incident/20221118021912A), Nov 18, 2022: Robinson Helicopter R44 (N4050P), North Las Vegas, NV, Substantial damage. On 11/18/22 at approximately 1027PST, [privacy data omitted], a 1973 Cessna 172M airplane, was conducting pattern operations on runway 30R, at the North Las… - [Accident 20221014017499A](https://openairdocs.org/incident/20221014017499A), Oct 14, 2022: Robinson Helicopter R44 (N306MB), Daytona Beach, FL, Substantial damage. The pilot was attempting to land on a moveable platform for the first time. The pilot stated and video showed he aborted his first attempt after he failed to… - [Accident 20220930011209A](https://openairdocs.org/incident/20220930011209A), Sep 30, 2022: Robinson Helicopter RH44 (N297SU), Cedar City, UT, Substantial damage. A CFI and student pilot were performing an off-field landing. As they were approaching the landing spot the CFI had the student practicing orbits. A high… - [Accident 20220830015629A](https://openairdocs.org/incident/20220830015629A), Aug 30, 2022: Robinson Helicopter R44 (N7048C), Beardsley, MN, Destroyed. The pilot was conducting air tour operations originating from a farmstead rural Beardsley, MN. During the accident flight, the aircraft approached the landing… - [Accident 20220826008309A](https://openairdocs.org/incident/20220826008309A), Aug 26, 2022: Robinson Helicopter R44 (N240RM), Deadhorse, AK, Substantial damage. Setting up for the approach, the pilot detected a strong tailwind while on downwind, but not strong enough to be alarmed. The terrain was hilly and the… - [Accident 20220803014039A](https://openairdocs.org/incident/20220803014039A), Aug 3, 2022: Robinson Helicopter R44 (N45CA), Lehighton, PA, Substantial damage. Accident summary: 08/03/2022, 13:00 EDT,[privacy data omitted], R-44, [privacy data omitted] was involved in a dynamic rollover accident while attempting to… - [Accident 20220606022129A](https://openairdocs.org/incident/20220606022129A), Jun 6, 2022: Robinson Helicopter R44 (N94WC), Henderson, TX, Substantial damage. On June 6, 2022, about 0950 central standard time, a Robinson R44 helicopter,[privacy data omitted], was substantially damaged when it was involved in an… - [Accident 20220526008639A](https://openairdocs.org/incident/20220526008639A), May 26, 2022: Robinson Helicopter R44 (N132TC), North Myrtle Be, SC, Substantial damage. After landing on runway 5 at cre the student lifted the helicopter into a hover. A loud bang was heard and the instructor took control and put the helicopter… - [Incident 20220507007129I](https://openairdocs.org/incident/20220507007129I), May 7, 2022: Robinson Helicopter R44 (N63AT), Belton, TX, No damage. Pilot reported noticing an unusual vibration develope while over stillhouse hollow lake. Performed precautionary landing on a _small island_. After the engine… - [Accident 20220326004339A](https://openairdocs.org/incident/20220326004339A), Mar 26, 2022: Robinson Helicopter R44 (N288L), Myrtle Beach, SC, Substantial damage. On a 91.147 [privacy data omitted]. Had just taken off and climbing through about 700 feet. Experience violent shudders not isolated with flight controls, but… - [Accident 20220325004299A](https://openairdocs.org/incident/20220325004299A), Mar 25, 2022: Robinson Helicopter R44 (N514CD), Rowlett, TX, Destroyed, 2 fatal. On 3/25/2022 at approximately 1127HRS ctd a Robinson R-44 helicopter sn 30007 registered as N514CD suffered a tail boom/rotor separation at approximately 1600?… - [Accident 20220219002139A](https://openairdocs.org/incident/20220219002139A), Feb 19, 2022: Robinson Helicopter R44 (N544SB), Miami, FL, Destroyed. Part 91ROBINSON helicopter R44, registration N544SB, serial number 1759 departed marathon heliport (2FD5) with one pilot and two-passenger to north perry… - [Incident 20210813004339I](https://openairdocs.org/incident/20210813004339I), Aug 13, 2021: Robinson Helicopter R44 (N844DT), Boise, ID, Minor damage. Following IFR practice approaches at boi the aircraft departed boi and was cleared direct for a VFR practice approach to caldwell (eul) airport. The instructor… - [Accident 20210804012999A](https://openairdocs.org/incident/20210804012999A), Aug 4, 2021: Robinson Helicopter R44 (N775AK), Waukon, IA, Substantial damage. Pilot hit electrical wires. Crashed in field close to the road - [Accident 20210720014179A](https://openairdocs.org/incident/20210720014179A), Jul 20, 2021: Robinson Helicopter R44 (N44XB), Mineral Point, WI, Substantial damage. Mineral Point, WI: N44XB, R44, while conducting spraying-cropdusting, hit a power line, causing the sprayer to detach from the acft. Pilot made a forced… - [Accident 20210502008779A](https://openairdocs.org/incident/20210502008779A), May 2, 2021: Robinson Helicopter R44 (N4528T), Wingate, NC, Substantial damage, 1 fatal. On may 2, 2021, at 1318 eastern daylight time, a Robinson R-44 helicopter, N4528T, was substantially damaged when it was involved in an accident near Wingate,… - [Accident 20210422009659A](https://openairdocs.org/incident/20210422009659A), Apr 22, 2021: Robinson Helicopter R44 (N4055N), Forkston, PA, Destroyed, 1 fatal. The accident flight departed allentown queen city municipal airport (xll) at approximately 20:10 local time enroute to bradford county airport (N27).… - [Accident 20210405005839A](https://openairdocs.org/incident/20210405005839A), Apr 5, 2021: Robinson Helicopter R44 (N8348X), Johnson City, KS, Substantial damage. The aircraft [privacy data omitted]pilot stated he and his passenger/son were flying out to check crops. His adult son was riding along because he wants to be… All 221: https://openairdocs.org/model/robinson-helicopter-r44/incidents.md ## Service difficulty reports (447, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2026FA0000623](https://openairdocs.org/sdr/2026FA0000623), Dec 5, 2025: CYLINDER. SCORED. THIS IS A NEW AIRCRAFT. LESS THAN 50HRS HAD BEEN FLOWN BEFORE WE FOUND ISSUES. LOGBOOK ENTRY, AIRCRAFT HAD A HARD STARTING CONDITION. FOUND STUCK INTAKE VALVES - [SDR 2025FA0000661](https://openairdocs.org/sdr/2025FA0000661), Aug 8, 2025: BRACKET. LOOSE. INSTALLED 3 DIFFERENT HARTZELL 149-12HT-H2 STARTERS (S/NS H-X112418, H-Z112422 & H-Z050870) BETWEEN 03/28/2025 AND 07/24/2025 ON A ROBINSON R44. EACH FAILED IN - [SDR 2024FA0000624](https://openairdocs.org/sdr/2024FA0000624), Aug 20, 2024: STARTER. DETERIORATED. SKYTECH STARTERS HAVE ALWAYS BEEN THE GO TO & BEST IN THE BUSINESS BUT IN THE LAST YEAR OR 2 THEY HAVE MASSIVELY GONE DOWN HILL. WE HAVE HAD 3 STARTERS ON DIFFE - [SDR 2NVA202408210020](https://openairdocs.org/sdr/2NVA202408210020), Aug 18, 2024: CONTROL ROD. DEFORMED. DURING ATTEMPTED ROTOR ENGAGEMENT FOLLOWING ENGINE START, TAIL ROTOR PEDALS DEFLECTED FULL LEFT. ENGINE WAS IMMEDIATELY SHUT DOWN AFTER LESS THAN 45 DEGREES OF - [SDR 2NVA202407090010](https://openairdocs.org/sdr/2NVA202407090010), Jul 9, 2024: INTAKE VALVE. FAILED. ABOUT 30 MINUTES INTO A TOUR, PILOT HEARD A SOUND AND EXPERIENCED LOSS OF POWER AND HIGH MANIFOLD PRESSURE. INITIATED POWER ON LANDING ON AN ADJACENT OPEN FIELD - [SDR 8HBR20240520062](https://openairdocs.org/sdr/8HBR20240520062), May 19, 2024: IGNITION UNIT. FAILED. PILOTS REPORTED A ROUGH ENGINE RUNNING ON THE LEFT IGNITION UNIT (EIS). IT WAS DETERMINED THE EIS UNIT HAS FAILED. THIS IS THE SECOND EIS IGNITION UNIT TO FAIL - [SDR YV3R2023120100590](https://openairdocs.org/sdr/YV3R2023120100590), Nov 11, 2023: DUAL TACHOMETER. DEFECTIVE. CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: C792-5 ENGINE NEEDLE WAS OVERREADING 2%. - [SDR 2NVA202311010001](https://openairdocs.org/sdr/2NVA202311010001), Oct 28, 2023: INTAKE VALVE. DAMAGED. PILOT IDENTIFIED HIGH MANIFOLD PRESSURE REQUIRED AFTER TAKE OFF AND PERFORMED A PRE CAUTIONARY LANDING OFF AIRPORT. INSPECTION REVEALED A WET SPARK PLUG ON CYLI - [SDR YV3R2023120100588](https://openairdocs.org/sdr/YV3R2023120100588), Oct 5, 2023: GOVERNOR. DEFECTIVE. CUSTOMER REPORTED GOVERNOR ASSEMBLY P/N: B247-9 WAS INOPERATIVE. - [SDR 2023FA0000663](https://openairdocs.org/sdr/2023FA0000663), Jul 26, 2023: BOLT. FAILED. DISCOVERED ENGINE MOUNT. REMOVED ENGINE CHECKED TORQUE ON REMAINING 3 BOLLS,. ALL BOLTS TORQUED TO RHC SPECS. REPLACED ALL 4 BOLLS I TORQUED AND SAFELY WIRED LO - [SDR YV3R2023071000575](https://openairdocs.org/sdr/YV3R2023071000575), May 30, 2023: CLUTCH. FAULTY. CUSTOMER REPORTED HEAVY YAW MOVEMENTS WITH LOUD NOISES, C018-4 CLUTCH ASSEMBLY HAS ALUMINUM AND STEEL PARTICLES IN OIL. - [SDR YV3R2023061500572](https://openairdocs.org/sdr/YV3R2023061500572), May 19, 2023: GOVERNOR. DEFECTIVE. CUSTOMER REPORTED GOVERNOR ASSEMBLY P/N: B247-5 HAS POSSIBLE FRICTION LOSS AT ARM. - [SDR YV3R2023061400571](https://openairdocs.org/sdr/YV3R2023061400571), May 19, 2023: SWITCH. DEFECTIVE. CUSTOMER REPORTED SWITCHES ASSEMBLY P/N: C053-2 HAS LOOSE CONNECTIONS. - [SDR YV3R2023061400570](https://openairdocs.org/sdr/YV3R2023061400570), May 18, 2023: SHIELD. CRACKED. CUSTOMER REPORTED SHIELD ASSEMBLY P/N: D314-1 WAS FOUND CRACKED. - [SDR 2023FA0000214](https://openairdocs.org/sdr/2023FA0000214), Apr 13, 2023: SHEAVE. UNKNOWN. BUMPS OR BUBBLES WERE FOUND IN THE UPPER SHEAVE GROOVES. THESE SEEM TO BE CORROSION POCKETS BETWEEN THE METALIZED PLATING AND THE CAST ALUMINUM BASE. IF THIS CO - [SDR YV3R2023042700560](https://openairdocs.org/sdr/YV3R2023042700560), Apr 12, 2023: TIMER. DEFECTIVE. CUSTOMER REPORTED TIME DELAY ASSEMBLY, LOW FUEL P/N: G655-1 LOW FUEL INDICATION INOPERATIVE. - [SDR YV3R2023042700558](https://openairdocs.org/sdr/YV3R2023042700558), Apr 11, 2023: DUAL TACHOMETER. DEFECTIVE. CUSTOMER REPORTED DUAL TACHOMETER P/N: C792-5 NEEDLES GET STUCK BETWEEN 68% - 90%. - [SDR 2023FA0000151](https://openairdocs.org/sdr/2023FA0000151), Mar 22, 2023: BEARING. ROUGH. FOUND ROUGH FEELING SWASHPLATE BEARING. THIS BEARING HAS A LIMITED LIFE LIMIT, BUT IS NEVER TO BE INSPECTED FOR ROUGHNESS. 100 HR/ ANNUAL INSPECTION PROCESS DOE - [SDR YV3R2022092300540](https://openairdocs.org/sdr/YV3R2022092300540), Sep 15, 2022: GOVERNOR. DEFECTIVE. CUSTOMER REPORTED GOVERNOR ASSEMBLY P/N: B247-5 ARM FRICTION WAS LOW. - [SDR YV3R2022091400536](https://openairdocs.org/sdr/YV3R2022091400536), Aug 24, 2022: GOVERNOR. FAULTED. CUSTOMER REPORTED GOVERNOR ASSEMBLY P/N: B247-5 ARM FRICTION WAS HIGH. - [SDR 2022FA0000442](https://openairdocs.org/sdr/2022FA0000442), May 19, 2022: INTAKE VALVE. BURNED. LOW CYLINDER COMPRESSIONS WERE NOTED AT ANNUAL FOR AN ENGINE THAT WAS REPAIRED BY LYCOMING ONLY 180 HRS PRIOR TO CURRENT INSPECTION. BORESCOPE REVEALED BURNED I - [SDR 2022FA0000523](https://openairdocs.org/sdr/2022FA0000523), Mar 22, 2022: EXHAUST VALVE. BROKEN. DURING CRUISE FLIGHT ENGINE BEGAN TO RUN ROUGH AND AN INCREASED POWER SETTING WAS REQUIRED TO MAINTAIN LEVEL FLIGHT. THE HELICOPTER IMMEDIATELY RETURNED TO THE - [SDR 2022FA0000090](https://openairdocs.org/sdr/2022FA0000090), Jan 20, 2022: NONE. PROPER. ICE FORMED INSIDE TAIL ROTOR SLIDER ASSEMBLY AFTER TAKE OFF DUE TO SUB FREEZING TEMPERATURES. NOTE: A/C EXPOSED TO RAIN PREVIOUS DAY AT OAT NEAR 60 F. AFTER FRO - [SDR YV3R2021112000502](https://openairdocs.org/sdr/YV3R2021112000502), Nov 5, 2021: NONE. NONE. CUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-1 ALLOWED RPM'S TO KEEP CLIMBING. - [SDR YV3R2021100700497](https://openairdocs.org/sdr/YV3R2021100700497), Sep 22, 2021: DUAL TACHOMETER. DEFECTIVE. CUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 WAS INTERMITTENT. - [SDR YV3R2021082800483](https://openairdocs.org/sdr/YV3R2021082800483), Aug 24, 2021: ACTUATOR. DEFECTIVE. CUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 LOWER LIMIT SWITCH MALFUNCTIONED. - [SDR YV3R2021082800480](https://openairdocs.org/sdr/YV3R2021082800480), Aug 13, 2021: ACTUATOR. DEFECTIVE. CUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-1 WILL NOT DISENGAGE DURING SWITCH SPRING TEST METHOD 1. - [SDR YV3R2021081100479](https://openairdocs.org/sdr/YV3R2021081100479), Jul 29, 2021: GOVERNOR. DEFECTIVE. CUSTOMER REPORTED GOVERNOR ASSEMBLY P/N: B247-5 WAS UNSERVICEABLE. - [SDR YV3R2021081000476](https://openairdocs.org/sdr/YV3R2021081000476), Jul 22, 2021: GAUGE. DEFECTIVE. CUSTOMER REPORTED MANIFOLD PRESSURE GAGE P/N: A600-4 WAS FAULTY. - [SDR YV3R2021081000475](https://openairdocs.org/sdr/YV3R2021081000475), Jul 22, 2021: GAUGE. FAULTED. CUSTOMER REPORTED CARBURETOR AIR TEMPERATURE GAUGE P/N: C604-8 WAS FAULTY. - [SDR YV3R2021070700468](https://openairdocs.org/sdr/YV3R2021070700468), Jun 29, 2021: DUAL TACHOMETER. DEFECTIVE. CUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 ROTOR NEEDLE WAS INTERMITTENT, AND THEN FAIL COMPLETELY. - [SDR YV3R2021062200463](https://openairdocs.org/sdr/YV3R2021062200463), Jun 8, 2021: ACTUATOR. DEFECTIVE. CUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-1 DID NOT COLLAPSE A COLUMN. - [SDR YV3R2021060900461](https://openairdocs.org/sdr/YV3R2021060900461), Jun 1, 2021: DUAL TACHOMETER. DEFECTIVE. CUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 ENGINE NEEDLE PEGS WITH POWER APPLIED. - [SDR YV3R2021090100489](https://openairdocs.org/sdr/YV3R2021090100489), May 27, 2021: SHEAVE. DEFECTIVE. CUSTOMER SHEAVE, LOWER P/N: A493-1 RECEIVED FOR WARRANTY. AFTER EVALUATION, BASE MATERIAL (ALUMINUM) HAD CORROSION, WHICH CAUSED BUBBLING BETWEEN ALUMINUM AND M - [SDR YV3R2021052800454](https://openairdocs.org/sdr/YV3R2021052800454), May 11, 2021: INDICATOR. DEFECTIVE. CUSTOMER REPORTED AIRSPEED INDICATOR P/N: C599-1 NEEDLE WAS ERRATIC. - [SDR 2021FA0000121](https://openairdocs.org/sdr/2021FA0000121), May 3, 2021: HARNESS. LOCKED. MULTIPLE TIMES DURING MULTIPLE FLIGHTS, PILOTS 5 POINT HARNESS WOULD LOCK UP AND NOT RELEASE, NOT ALLOWING THE PILOT TO ACCESS FORWARD CONTROLS. - [SDR YV3R2021043000452](https://openairdocs.org/sdr/YV3R2021043000452), Apr 20, 2021: GAUGE. DEFECTIVE. REVISED UNIQUE CONTROL #: CUSTOMER REPORTED MANIFOLD PRESSURE GAGE P/N: A600-4 WILL NOT DISPLAY CORRECT PRESSURE. - [SDR 2021FA0000119](https://openairdocs.org/sdr/2021FA0000119), Apr 20, 2021: GAUGE. DEFECTIVE. CUSTOMER REPORTED MANIFOLD PRESSURE GAGE P/N: A600-4 WILL NOT DISPLAY CORRECT PRESSURE. - [SDR YV3R2021031300447](https://openairdocs.org/sdr/YV3R2021031300447), Mar 5, 2021: MOTOR. DEFECTIVE. CUSTOMER REPORTED GEARMOTOR ASSEMBLY P/N: D276-1 OPERATION TOO SLOW. - [SDR HLXR202108170001](https://openairdocs.org/sdr/HLXR202108170001), Mar 1, 2021: EXTINGUISHER. FAILED. AIRCRAFT WAS FLYING APPROX 100 AGL AT 20 KNTS, FIRE NOZZLE BLEW OFF THE BOTTLE GOING THROUGH THE LT FWD WINDSCREEN. PILOT MAINTAINED CONTROL AND LANDED. BELIEVE - [SDR YV3R2021031200445](https://openairdocs.org/sdr/YV3R2021031200445), Mar 1, 2021: GAUGE. DEFECTIVE. CUSTOMER REPORTED MANIFOLD ABSOLUTE PRESSURE GAGE (M.A.P) P/N: A600-4 WAS INTERMITTENT IN OPERATION. - [SDR YV3R2021031200444](https://openairdocs.org/sdr/YV3R2021031200444), Mar 1, 2021: MOTOR. DEFECTIVE. CUSTOMER REPORTED GEARMOTOR ASSEMBLY P/N: D276-3 WAS INTERMITTENT IN OPERATION. - [SDR YV3R2021030300440](https://openairdocs.org/sdr/YV3R2021030300440), Feb 16, 2021: DUAL TACHOMETER. DEFECTIVE. CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: C792-5 ENGINE RPM INDICATION WAS IRREGULAR. - [SDR YV3R2021022200437](https://openairdocs.org/sdr/YV3R2021022200437), Feb 16, 2021: GAUGE. DEFECTIVE. CUSTOMER REPORTED MANIFOLD ABSOLUTE PRESSURE GAGE (M.A.P) P/N: A600-4 INDICATING NEEDLE STUCK. - [SDR YV3R2021022200436](https://openairdocs.org/sdr/YV3R2021022200436), Feb 16, 2021: GAUGE. DEFECTIVE. CUSTOMER REPORTED MANIFOLD ABSOLUTE PRESSURE GAGE (M.A.P) P/N: A600-4 NEEDLE INDICATING INCORRECTLY. - [SDR YV3R2021022200435](https://openairdocs.org/sdr/YV3R2021022200435), Feb 16, 2021: TRANSMITTER. DEFECTIVE. CUSTOMER REPORTED SENDER-FUEL LEVEL PN: D252-1 WAS READING INCORRECTLY. - [SDR YV3R2021022200434](https://openairdocs.org/sdr/YV3R2021022200434), Feb 10, 2021: GOVERNOR. DEFECTIVE. CUSTOMER REPORTED CONTROLLER ASSEMBLY (GOVERNOR) PN: D278-1 WAS INOPERATIVE WHEN TURNED ON ABOVE 80%. - [SDR YV3R2021022200433](https://openairdocs.org/sdr/YV3R2021022200433), Feb 9, 2021: DUAL TACHOMETER. DEFECTIVE. CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY PN: C792-4 ROTOR NEEDLE WAS INOPERATIVE. - [SDR 2021FA0000030](https://openairdocs.org/sdr/2021FA0000030), Feb 3, 2021: GOVERNOR. FAILED. DURING AIRCRAFT RUN-UP PROCEDURES PILOT ENGAGED GOVERNOR SWITCH INCREASED THROTTLE TO 832% FOR GOVERNOR TO TAKE OVER. GOVERNOR FAILED TO ENGAGE, AIRCRAFT SHUT D - [SDR YV3R2021012200427](https://openairdocs.org/sdr/YV3R2021012200427), Jan 20, 2021: GAUGE. DEFECTIVE. CUSTOMER REPORTED MANIFOLD ABSOLUTE PRESSURE GAGE (M.A.P) P/N: A600-7 NEEDLE INDICATION WAS LAGGING. All 447: https://openairdocs.org/model/robinson-helicopter-r44/reports.md ## STCs that may be installed (OpenAirDocs) (102, first 50) Approved for this 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 SR12177IB](https://openairdocs.org/stc/SR12177IB): Installation of Floor Protector. Delastek Inc - [STC SR02420AK](https://openairdocs.org/stc/SR02420AK): Installation of the ZW Aviation LLC R44M-001 Utility Camera Mount. Gyro-Stabilized Systems LLC - [STC SR03403CH](https://openairdocs.org/stc/SR03403CH): Installation of universal internal mount for electrical equipment provisions. STERLING HELICOPTER - [STC SR02270AK](https://openairdocs.org/stc/SR02270AK): Manufacture cargo rack. Larry T. Larrivee - [STC SR02049LA](https://openairdocs.org/stc/SR02049LA): Installation of Apical Industries, Inc. Emergency Float Kits. Apical Industries, Inc. dba Dart Aerospace - [STC SR01980WI](https://openairdocs.org/stc/SR01980WI): Installation of Garmin GI 275 Multi-Function Instrument. Garmin International Inc - [STC SA01435LA](https://openairdocs.org/stc/SA01435LA): Installation of engines modified with Firewall Forward Technologies LLC modified camshaft. Centri-Lube Technologies LLC - [STC SR00086BO](https://openairdocs.org/stc/SR00086BO): Operation of rotorcraft on unleaded and leaded automotive gasoline, 91 minimum antiknock index (RON + MON)/2 per ASTM Specification D-439 or D-4814. Petersen Aviation Inc - [STC SA11137SC](https://openairdocs.org/stc/SA11137SC): Installation of Plane-Power ALT-FLX alternator. Hartzell Engine Technologies, LLC - [STC SR02431AK](https://openairdocs.org/stc/SR02431AK): Installation of the LAM-R44 Portable Device Mount. Airglas Inc - [STC SR03512AT](https://openairdocs.org/stc/SR03512AT): Installation of HID Landing and Taxi Lights. Whelen Aerospace Technologies - [STC SR00578SE](https://openairdocs.org/stc/SR00578SE): Fabrication of Onboard Systems Cargo Hook Kits Model 200-227-00 (without load weigh), Model 200-228-00 (with load weigh), Model 200-313-00 (28V, without load weigh), Model 200-314-00 (28V, with load weigh). Onboard Systems International - [STC SR01064SE](https://openairdocs.org/stc/SR01064SE): Fabrication of Onboard Systems Model 200-265-00 12 Volt Talon LC Keeperless cargo hook kit without load weigh, Model 200-266-00 12 Volt Talon LC Keeperless Cargo hook kit with load weigh, Model 200-288-00 28 Volt Talon LC Keeperless cargo hook kit without load weigh. Onboard Systems International LLC - [STC SR01808SE](https://openairdocs.org/stc/SR01808SE): Installation of Onboard Systems International Cargo Hook Kit. Onboard Systems International - [STC SR04200AT](https://openairdocs.org/stc/SR04200AT): Installation of a Sky Sign Model H-47C Electronic Billboard. SKY SIGN INC - [STC SR02254LA](https://openairdocs.org/stc/SR02254LA): Installation of stability augmentation system and autopilot. S-TEC Corporation - [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC - [STC SR02736LA](https://openairdocs.org/stc/SR02736LA): Installation of Skid Step. Longhorn Aviation Services LLC - [STC SR02991NY](https://openairdocs.org/stc/SR02991NY): The installation of Quick Release Mounting Provisions and Quick Release Cargo Basket. Dart Aerospace Limited - [STC SR03297CH](https://openairdocs.org/stc/SR03297CH): Installation of provisions for external equipment. Certex Aviation LLC - [STC SR02622SE](https://openairdocs.org/stc/SR02622SE): Installation of Garmin G500H TXi Display System (Primary Flight Display (PDF), Multi-Function Display (MFD)). Garmin International Inc - [STC SR02363AK](https://openairdocs.org/stc/SR02363AK): Installation of a fixed mounted Max-Viz® Enhanced Vision System (EVS) Models 100/600 to include a sensor Line Replaceable Unit (LRU) with conformal housing, power supply, and a glareshield-mounted, dedicated display monitor. PECO Inc - [STC SR04453CH](https://openairdocs.org/stc/SR04453CH): Installation of Appareo Systems LLC Stratus ES & Stratus ESG ADS-B transponder. Appareo Systems LLC - [STC SR02124SE](https://openairdocs.org/stc/SR02124SE): Installation functionality. of Data Garmin Required: transponders: (1) Garmin GTX Master 345/345R Drawing with List ADS-B (MDL), Out and In 005-00734-A4, functionality;. Garmin International Inc - [STC SR02295LA](https://openairdocs.org/stc/SR02295LA): Installation of Garmin Model G500H Flight Display System. Garmin International Inc - [STC SR02432NY](https://openairdocs.org/stc/SR02432NY): Installation of Helitowcart Bear Paw Models BP350, BP44 or BP130. Dart Aerospace Ltd - [STC SR02521AK](https://openairdocs.org/stc/SR02521AK): Installation of bicycle racks. Robbie Rack LLC - [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [STC SR02290AK](https://openairdocs.org/stc/SR02290AK): Manufacture tundra/snow boards, Install and maintain. Pollux Aviation Ltd - [STC SR03080NY](https://openairdocs.org/stc/SR03080NY): Installation of the External Power Receptacle (EGPR). Aero Design Ltd - [STC SR00805NY](https://openairdocs.org/stc/SR00805NY): Manufacture and installation of bearpaws. Northeast Engr & Dev Ltd - [STC SR00387BO](https://openairdocs.org/stc/SR00387BO): Installation of Avidyne 700-00182-XXX IFD5XX and 700-00179-XXX IFD4XX Series Integrated Flight Displays (IFD). Avidyne Corporation - [STC SR00342NY](https://openairdocs.org/stc/SR00342NY): Installation of Airwolf remote mounted engine oil filter kit AFC-8011. Airwolf Filter Corporation - [STC SR02660LA](https://openairdocs.org/stc/SR02660LA): Installation of Nose Utility Mount. Airfilm Camera Systems - [STC SR02506SE](https://openairdocs.org/stc/SR02506SE): Installation of the Collective Pull Down System, installed and maintained. HeliTrak Inc - [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems. J P Instruments - [STC SR09568RC](https://openairdocs.org/stc/SR09568RC): Installation of Tech Tool Plastics replacement doors with full view windows. Tech-Tool Plastics Inc - [STC SR02487AK](https://openairdocs.org/stc/SR02487AK): Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System. ADS-B Technologies, LLC - [STC SR03901NY](https://openairdocs.org/stc/SR03901NY): Installation of Replacement Seat Cushion/Backrest and Interior Accessories. Ramm Aerospace Inc - [STC SR03879NY](https://openairdocs.org/stc/SR03879NY): Installation of Replacement Floor Covering Kits. Ramm Aerospace Inc - [STC SR03878NY](https://openairdocs.org/stc/SR03878NY): Installation of Replacement Headliner and Bulkhead Covering Kits. Ramm Aerospace Inc - [STC SR03866NY](https://openairdocs.org/stc/SR03866NY): Installation of LIDAR Anchoring System. Alevia Aeronautique Inc - [STC SR00840DE](https://openairdocs.org/stc/SR00840DE): Installation of the Rosen Sunvisor System into the Robinson R22. R44 and R66. Rosen Sunvisor Systems LLC - [STC SR02206SE](https://openairdocs.org/stc/SR02206SE): Installation of Garmin G500H Avionics Display System including GDU 620 PFD/MFD, GRS 77H AHRS, GMU 44 Magnetometer, GDC 74H Air Data Computer, and GTP 59 Temperature Probe. Garmin International Inc - [STC SR02470AK](https://openairdocs.org/stc/SR02470AK): Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System. ADS-B Technologies, LLC - [STC SR02471AK](https://openairdocs.org/stc/SR02471AK): Installation of the L-3 Communications NGT -9000/9000R ADS-B System. ADS-B Technologies, LLC - [STC SR02429AK](https://openairdocs.org/stc/SR02429AK): Installation of Airglas, Inc. LTB2600 Modular Terrain System. Airglas Inc - [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC - [STC SR09645RC](https://openairdocs.org/stc/SR09645RC): Installation of Cool City Electronics Inc. Automatic Flight Control System (AFCS), Stability Control Augmentation System (SCAS), Yaw Damper System and Orbit Mode. Cool City Electronics Inc. dba Cool City Avionics - [STC SA01669CH](https://openairdocs.org/stc/SA01669CH): Installation of Challenger Reusable Air Filter. Challenger Aviation Products Inc All 102: https://openairdocs.org/model/robinson-helicopter-r44/stcs.md ## PMA parts (OpenAirDocs) (338, first 50) Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this model on its data sheet, so check the FAA record before relying on it. Newest first. - [98020044-5012](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106369861120260402153653.0001): Robinson R44 NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · Mar 24, 2026 - [98020044-5011](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171083701520260325205944.0001): Robinson R44 NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · Mar 23, 2026 - [LHA-44-005](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147516958220260514172733.0001): Aft Attachment Bracket. Longhorn Aviation Services, LLC. · PMA PQ00042CB · Modification part · Mar 17, 2026 - [LHA-44-007](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137520108420260514172733.0001): Clamp Spacer. Longhorn Aviation Services, LLC. · PMA PQ00042CB · Modification part · Mar 17, 2026 - [LHA-44-002](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125337596820260514172732.0001): Forward Clamp, RH. Longhorn Aviation Services, LLC. · PMA PQ00042CB · Modification part · Mar 17, 2026 - [LHA-44-003](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114061500920260514172732.0001): Step. Longhorn Aviation Services, LLC. · PMA PQ00042CB · Modification part · Mar 17, 2026 - [LHA-44-001](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106443746320260514172732.0001): Forward Clamp, LH. Longhorn Aviation Services, LLC. · PMA PQ00042CB · Modification part · Mar 17, 2026 - [LHA-44-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109028373720241017194519.0001): R44/R66 Skid Tube Step. RSG Products Inc · PMA PQ03883SW · Replaces LHA-44-1 · Oct 17, 2024 - [98020044-1009](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126111785520240620171833.0001): Robinson R44NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · May 1, 2024 - [5MA2346-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188174253120240515131426.0001): Float. SMR Acquisition LLC dba SMR Technologies Inc · PMA PQ0845NE · Replaces B900-7R · Mar 27, 2024 - [5MA2346-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125105333720240515131426.0001): Float. SMR Acquisition LLC dba SMR Technologies Inc · PMA PQ0845NE · Replaces B900-7L · Mar 27, 2024 - [TAU03323](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169171093220240221143036.0001): AV/Cabin Heat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Dec 14, 2023 - [TA2778-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137193249420231101130942.0001): Heli- Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 16, 2023 - [TA2778-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117046040020231101130942.0001): Heli- Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Oct 16, 2023 - [98020044-5010](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149786026520230726122644.0001): Robinson R44NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · Jul 13, 2023 - [V674903-91](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162268515320230713122534.0001): Leaded and Unleaded Automotive Gasoline. Petersen Aviation Inc · PMA PQ3427CE · Modification part · Jul 11, 2023 - [98020044-5009](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131005634220230424165647.0001): Robinson R44NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · Apr 19, 2023 - [149-12HT-H2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135824552320230508162358.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 149-12HT-H, BC315-100-2, MZ4224 · Jan 10, 2023 - [149-24HT-H4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104706339120230508162404.0001): Starter Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 149-24HT-H, BC315-100-4 · Jan 10, 2023 - [200-327-00200-327-01200-327-10200-327-11](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179990350320220811112133.0001): Cargo Hook Suspension System, 28V. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-265-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165717452020220811112115.0001): R-44 12V Cargo Hook Suspension System – without Load Weigh. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-324-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164339944520220811112129.0001): 12V Susp. System. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-289-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163639462920220811112116.0001): R-44 28V Susp. System – with Load Weigh. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-326-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162908769620220811112132.0001): 12V Susp. System. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-227-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158276310120220811112049.0001): Cargo Hook Kit Robinson R44 (without Load Weigh). Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-327-02200-327-12](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144735607720220811112218.0001): Cargo Hook Suspension System, 28V. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-340-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140923443220220811112133.0001): Pin Load Weigh System. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-288-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136970210120220811112115.0001): R-44 28V Susp. System – without Load Weigh. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-340-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136242924220220811112219.0001): Pin Load Weigh System. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-325-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129212867320220811112130.0001): 28V Susp. System. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-325-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127813938520220811112131.0001): 28V Susp. System w/ Keepered Cargo Hook & Load Weigh. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-396-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117109809320220811112134.0001): Remote Hook Electrical Release Kit. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-228-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100716551520220811112050.0001): Cargo Hook Kit Robinson R44 (with Load Weigh). Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [01-0790906-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158819961620220610124319.0001): LED Landing Light. Whelen Aerospace Technologies · PMA PQ1372CE · Modification part · Jun 6, 2022 - [AG843000-17](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID434912360120211110110517.0001): Gasket-UHF/VHF. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Aug 9, 2021 - [98020044-5008](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159179246820210823174707.0001): Robinson R44 NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · May 3, 2021 - [CCA-110-H4](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133901990320260310185526.0001): Fuel Drain Valve Assembly. Curtis Superior Valve Co Inc · PMA PQ05319NM · Replaces Fuel Drain AssemblyA761-1 · Feb 25, 2021 - [LHA-44-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID413864469620210622143537.0001): R44/R66 Skid Tube Step. Aerocraft, Inc. · PMA PQ5299NM · Replaces LHA-44-1 · Dec 17, 2020 - [R44B-101](https://drs.faa.gov/browse/excelExternalWindow/FCC078E663F5D6EE862585DF00336B09.0001): Clamp Lower Bushing. Brunner Machine Works, LLC · PMA PQ04418CE · Replaces R44B-101 · Sep 7, 2020 - [R66B-904](https://drs.faa.gov/browse/excelExternalWindow/FA30BAF063F9E268862585DF00336B75.0001): Ratchet Strap Anchoring Base. Brunner Machine Works, LLC · PMA PQ04418CE · Replaces R66B-904 · Sep 7, 2020 - [R44B-102](https://drs.faa.gov/browse/excelExternalWindow/CB0AAAC5DD111A2A862585DF00336B39.0001): Clamp Upper Bushing. Brunner Machine Works, LLC · PMA PQ04418CE · Replaces R44B-102 · Sep 7, 2020 - [R66B-905](https://drs.faa.gov/browse/excelExternalWindow/5AF7D3533D48C80D862585DF00336BB0.0001): Ratchet Strap Side Cover. Brunner Machine Works, LLC · PMA PQ04418CE · Replaces R66B-905 · Sep 7, 2020 - [R66B-906](https://drs.faa.gov/browse/excelExternalWindow/4B392B036861E2B6862585DF00336BEC.0001): Ratchet Strap Anchoring Pivot Base. Brunner Machine Works, LLC · PMA PQ04418CE · Replaces R66B-906 · Sep 7, 2020 - [7242-14](https://drs.faa.gov/browse/excelExternalWindow/BE0D4A4B7E7C536D86258596003D5923.0001): Battery. Teledyne Battery Products · PMA PQ1006NM · Replaces Concorde RG24-15 · Jan 21, 2020 - [7242-16](https://drs.faa.gov/browse/excelExternalWindow/2293B1E27802C61686258596003D5951.0001): Battery. Teledyne Battery Products · PMA PQ1006NM · Replaces Concorde RG24-15 · Jan 21, 2020 - [8001723](https://drs.faa.gov/browse/excelExternalWindow/1603B700E3DC8A4D86258593003C44B9.0001): Engine Oil Cooler Assembly. Aero-Classics Heat Transfer Products Inc · PMA PQ2543NM · Replaces 10886A · Jan 20, 2020 - [98020044-5006](https://drs.faa.gov/browse/excelExternalWindow/C03981BBA0F2DDB78625857D005E743C.0001): Robinson R44 NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · Nov 12, 2019 - [98020044-5007](https://drs.faa.gov/browse/excelExternalWindow/7EF2231EAAE9F75A8625857D005E74C7.0001): Robinson R44 NVG Modification Kit. REB Technologies Inc · PMA PQ1018SW · Modification part · Nov 12, 2019 - [P/N AFC-K011](https://drs.faa.gov/browse/excelExternalWindow/CC8E09860B269B9686258567003E4652.0001): Airwolf Remote Oil Filter Kit. Airwolf Filter Corp. · PMA PQ3870SW · Modification part · Oct 8, 2019 - [R44M-601](https://drs.faa.gov/browse/excelExternalWindow/FFB2B83B896AC3E186258567004F6F8C.0001): Weldment Aft Cover. Brunner Machine Works, LLC. · PMA PQ04418CE · Replaces R44M-601 · Oct 1, 2019 All of them: https://openairdocs.org/model/robinson-helicopter-r44/pma.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Robinson Helicopter R44 ASTRO](https://openairdocs.org/model/robinson-helicopter-r44-astro): 6 registered aircraft, registry code 7640121 --- 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.