# Rolls-Royce 250-C300/A1 - Type: Engine model (FAA registry) - Registry code: 54232 - Manufacturer (registry): ROLLS-ROYC - Model: 250-C300/A1 - Engine type: Turbo-shaft - Power: 300 hp - Data sheet: [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs) - Holder: Rolls-Royce Corporation - Installed in: 354 registered aircraft - Page: https://openairdocs.org/engine/rolls-royce-250-c300-a1 Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2022-10-06](https://openairdocs.org/ad/2022-10-06): Turbine Section · Rolls-Royce 250-C20, 250-C20B, 250-C20C (T63-A-720) and 9 more. Effective Jun 28, 2022 Historical (superseded or no longer in force): - [AD 2017-18-14](https://openairdocs.org/ad/2017-18-14) (historical): Turbine Section · Rolls-Royce 250-C20, 250-C20B, 250-C20F and 8 more. Effective Oct 13, 2017 ## Registered aircraft (354, first 50) - [N100KR](https://openairdocs.org/aircraft/N100KR): [Jjj Holdings LLC](https://openairdocs.org/faa-owner/JJJ%20HOLDINGS%20LLC), [Eugene, MO](https://openairdocs.org/faa-place/MO/Eugene), built 2025, S/N 1458 - [N108GD](https://openairdocs.org/aircraft/N108GD): [330am Holding Corp](https://openairdocs.org/faa-owner/330AM%20HOLDING%20CORP), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 2025, S/N 1464 - [N10LK](https://openairdocs.org/aircraft/N10LK): [Helius Aircraft Service LLC](https://openairdocs.org/faa-owner/HELIUS%20AIRCRAFT%20SERVICE%20LLC), [Conroe, TX](https://openairdocs.org/faa-place/TX/Conroe), built 2022, S/N 1193 - [N10MW](https://openairdocs.org/aircraft/N10MW): [Jk Aviation LLC](https://openairdocs.org/faa-owner/JK%20AVIATION%20LLC), [Grosse Ile, MI](https://openairdocs.org/faa-place/MI/Grosse%20Ile), built 2020, S/N 0989 - [N111JD](https://openairdocs.org/aircraft/N111JD): [Albert Hall Co LLC](https://openairdocs.org/faa-owner/ALBERT%20HALL%20CO%20LLC), [Port Angeles, WA](https://openairdocs.org/faa-place/WA/Port%20Angeles), built 2018, S/N 0843 - [N113WC](https://openairdocs.org/aircraft/N113WC): [Rebel One LLC](https://openairdocs.org/faa-owner/REBEL%20ONE%20LLC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 2024, S/N 1397 - [N114AF](https://openairdocs.org/aircraft/N114AF): [Ne Ia Helicopter LLC](https://openairdocs.org/faa-owner/NE%20IA%20HELICOPTER%20LLC), [Tekamah, NE](https://openairdocs.org/faa-place/NE/Tekamah), built 2012, S/N 0237 - [N11SR](https://openairdocs.org/aircraft/N11SR): [M3p Interests LLC](https://openairdocs.org/faa-owner/M3P%20INTERESTS%20LLC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 2024, S/N 1384 - [N11ZG](https://openairdocs.org/aircraft/N11ZG): [White Star Marine Services LLC](https://openairdocs.org/faa-owner/WHITE%20STAR%20MARINE%20SERVICES%20LLC), [Basalt, CO](https://openairdocs.org/faa-place/CO/Basalt), built 2017, S/N 0769 - [N126AG](https://openairdocs.org/aircraft/N126AG): [Oak View Capital LLC](https://openairdocs.org/faa-owner/OAK%20VIEW%20CAPITAL%20LLC), [Brookhaven, MS](https://openairdocs.org/faa-place/MS/Brookhaven), built 2019, S/N 0933 - [N133LG](https://openairdocs.org/aircraft/N133LG): [Rotor Wash LLC](https://openairdocs.org/faa-owner/ROTOR%20WASH%20LLC), [Alton Bay, NH](https://openairdocs.org/faa-place/NH/Alton%20Bay), built 2026, S/N 1506 - [N133MM](https://openairdocs.org/aircraft/N133MM): [Apex Helicopters LLC](https://openairdocs.org/faa-owner/APEX%20HELICOPTERS%20LLC), [Pearland, TX](https://openairdocs.org/faa-place/TX/Pearland), built 2012, S/N 0107 - [N13FR](https://openairdocs.org/aircraft/N13FR): [Robinson Helicopter Co](https://openairdocs.org/faa-owner/ROBINSON%20HELICOPTER%20CO), [Torrance, CA](https://openairdocs.org/faa-place/CA/Torrance), built 2013, S/N 0373 - [N147JB](https://openairdocs.org/aircraft/N147JB): [Ramair Enterprises LLC](https://openairdocs.org/faa-owner/RAMAIR%20ENTERPRISES%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2023, S/N 1213 - [N148R](https://openairdocs.org/aircraft/N148R): [Higgins Leasing Inc](https://openairdocs.org/faa-owner/HIGGINS%20LEASING%20INC), [The Woodlands, TX](https://openairdocs.org/faa-place/TX/The%20Woodlands), built 2017, S/N 0783 - [N1498G](https://openairdocs.org/aircraft/N1498G): [Angelone Inc](https://openairdocs.org/faa-owner/ANGELONE%20INC), [Elkhart, IN](https://openairdocs.org/faa-place/IN/Elkhart), built 2013, S/N 0378 - [N152KB](https://openairdocs.org/aircraft/N152KB): [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 2016, S/N 0697, Sale reported - [N1584](https://openairdocs.org/aircraft/N1584): [Here Be Dragons LLC](https://openairdocs.org/faa-owner/HERE%20BE%20DRAGONS%20LLC), [Bridgton, ME](https://openairdocs.org/faa-place/ME/Bridgton), built 2023, S/N 1248 - [N15KR](https://openairdocs.org/aircraft/N15KR): [Cloudscape LLC](https://openairdocs.org/faa-owner/CLOUDSCAPE%20LLC), [Kalispell, MT](https://openairdocs.org/faa-place/MT/Kalispell), built 2022, S/N 1129 - [N1664U](https://openairdocs.org/aircraft/N1664U): [Jmx Helicopters LLC](https://openairdocs.org/faa-owner/JMX%20HELICOPTERS%20LLC), [Princeton, IL](https://openairdocs.org/faa-place/IL/Princeton), built 2013, S/N 0395 - [N166BZ](https://openairdocs.org/aircraft/N166BZ): built 2018, S/N 0873 - [N166DL](https://openairdocs.org/aircraft/N166DL): [B-Line Air LLC](https://openairdocs.org/faa-owner/B-LINE%20AIR%20LLC), [Malcom, IA](https://openairdocs.org/faa-place/IA/Malcom), built 2013, S/N 0304 - [N166FS](https://openairdocs.org/aircraft/N166FS): [Silverhawk Aviation Academy LLC](https://openairdocs.org/faa-owner/SILVERHAWK%20AVIATION%20ACADEMY%20LLC), [Caldwell, ID](https://openairdocs.org/faa-place/ID/Caldwell), built 2014, S/N 0513 - [N166GH](https://openairdocs.org/aircraft/N166GH): [144gh Aviation LLC](https://openairdocs.org/faa-owner/144GH%20AVIATION%20LLC), [Dover, DE](https://openairdocs.org/faa-place/DE/Dover), built 2015, S/N 0667 - [N166GS](https://openairdocs.org/aircraft/N166GS): [Western Sky Aviation LLC](https://openairdocs.org/faa-owner/WESTERN%20SKY%20AVIATION%20LLC), [Scottsdale, AZ](https://openairdocs.org/faa-place/AZ/Scottsdale), built 2015, S/N 0593 - [N166LW](https://openairdocs.org/aircraft/N166LW): [Thompson Flying Service LLC](https://openairdocs.org/faa-owner/THOMPSON%20FLYING%20SERVICE%20LLC), [Charleston, MO](https://openairdocs.org/faa-place/MO/Charleston), built 2017, S/N 0766 - [N166MG](https://openairdocs.org/aircraft/N166MG): [Gallagher Maria Jane](https://openairdocs.org/faa-owner/GALLAGHER%20MARIA%20JANE), [Lakewood Ranch, FL](https://openairdocs.org/faa-place/FL/Lakewood%20Ranch), built 2016, S/N 0694 - [N166PD](https://openairdocs.org/aircraft/N166PD): [City Of Fontana California](https://openairdocs.org/faa-owner/CITY%20OF%20FONTANA%20CALIFORNIA), [Fontana, CA](https://openairdocs.org/faa-place/CA/Fontana), built 2012, S/N 0101 - [N166RH](https://openairdocs.org/aircraft/N166RH): [Whirld Helicopters Inc](https://openairdocs.org/faa-owner/WHIRLD%20HELICOPTERS%20INC), [Sevierville, TN](https://openairdocs.org/faa-place/TN/Sevierville), built 2016, S/N 0708 - [N166SL](https://openairdocs.org/aircraft/N166SL): [Gaga Heli Corp LLC](https://openairdocs.org/faa-owner/GAGA%20HELI%20CORP%20LLC), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale), built 2016, S/N 0726 - [N166SS](https://openairdocs.org/aircraft/N166SS): [Lane Aviation Inc](https://openairdocs.org/faa-owner/LANE%20AVIATION%20INC), [Rosenberg, TX](https://openairdocs.org/faa-place/TX/Rosenberg), built 2024, S/N 1332 - [N16HR](https://openairdocs.org/aircraft/N16HR): [Alcyone Trust Corp Trustee](https://openairdocs.org/faa-owner/ALCYONE%20TRUST%20CORP%20TRUSTEE), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita), built 2021, S/N 1074 - [N16KM](https://openairdocs.org/aircraft/N16KM): [Digital Path Aviation LLC](https://openairdocs.org/faa-owner/DIGITAL%20PATH%20AVIATION%20LLC), [Chico, CA](https://openairdocs.org/faa-place/CA/Chico), built 2019, S/N 0962 - [N170PD](https://openairdocs.org/aircraft/N170PD): [Hawaii Pacific Aviation Inc](https://openairdocs.org/faa-owner/HAWAII%20PACIFIC%20AVIATION%20INC), [Kailua Kona, HI](https://openairdocs.org/faa-place/HI/Kailua%20Kona), built 2014, S/N 0526 - [N173KC](https://openairdocs.org/aircraft/N173KC): [Vertical Aviation LLC](https://openairdocs.org/faa-owner/VERTICAL%20AVIATION%20LLC), [North Las Vegas, NV](https://openairdocs.org/faa-place/NV/North%20Las%20Vegas), built 2018, S/N 0847 - [N179RR](https://openairdocs.org/aircraft/N179RR): [Higgins Leasing Inc](https://openairdocs.org/faa-owner/HIGGINS%20LEASING%20INC), [The Woodlands, TX](https://openairdocs.org/faa-place/TX/The%20Woodlands), built 2012, S/N 0179 - [N17XP](https://openairdocs.org/aircraft/N17XP): [Quagliano Michael D](https://openairdocs.org/faa-owner/QUAGLIANO%20MICHAEL%20D), [Belgrade, MT](https://openairdocs.org/faa-place/MT/Belgrade), built 2022, S/N 1146 - [N184HF](https://openairdocs.org/aircraft/N184HF): [Ne Ia Aviation LLC](https://openairdocs.org/faa-owner/NE%20IA%20AVIATION%20LLC), [Tekamah, NE](https://openairdocs.org/faa-place/NE/Tekamah), built 2012, S/N 0184 - [N19573](https://openairdocs.org/aircraft/N19573): [Tvpx Aircraft Solutions Inc Trustee](https://openairdocs.org/faa-owner/TVPX%20AIRCRAFT%20SOLUTIONS%20INC%20TRUSTEE), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 2013, S/N 0340 - [N1DX](https://openairdocs.org/aircraft/N1DX): [Ravens Holdings Aviation LLC](https://openairdocs.org/faa-owner/RAVENS%20HOLDINGS%20AVIATION%20LLC), [Reddick, FL](https://openairdocs.org/faa-place/FL/Reddick), built 2015, S/N 0665 - [N20UP](https://openairdocs.org/aircraft/N20UP): [Rsv Rotor Wing LLC](https://openairdocs.org/faa-owner/RSV%20ROTOR%20WING%20LLC), [Iowa City, IA](https://openairdocs.org/faa-place/IA/Iowa%20City), built 2019, S/N 0924 - [N211SL](https://openairdocs.org/aircraft/N211SL): [Polk County Sheriffs Office](https://openairdocs.org/faa-owner/POLK%20COUNTY%20SHERIFFS%20OFFICE), [Winter Haven, FL](https://openairdocs.org/faa-place/FL/Winter%20Haven), built 2021, S/N 1025 - [N212AE](https://openairdocs.org/aircraft/N212AE): [Beyond LLC](https://openairdocs.org/faa-owner/BEYOND%20LLC), [Kodiak, AK](https://openairdocs.org/faa-place/AK/Kodiak), built 2019, S/N 0949 - [N21JR](https://openairdocs.org/aircraft/N21JR): [J & R Flying Service LLC](https://openairdocs.org/faa-owner/J%20%26%20R%20FLYING%20SERVICE%20LLC), [Alicia, AR](https://openairdocs.org/faa-place/AR/Alicia), built 2021, S/N 1073 - [N228JJ](https://openairdocs.org/aircraft/N228JJ): [Lambertville, MI](https://openairdocs.org/faa-place/MI/Lambertville), built 2026, S/N 1529, Registration pending - [N23UP](https://openairdocs.org/aircraft/N23UP): [Emerald City Aircraft Leasing Inc](https://openairdocs.org/faa-owner/EMERALD%20CITY%20AIRCRAFT%20LEASING%20INC), [Port Orchard, WA](https://openairdocs.org/faa-place/WA/Port%20Orchard), S/N 0270 - [N245MT](https://openairdocs.org/aircraft/N245MT): [Shamrock Air LLC](https://openairdocs.org/faa-owner/SHAMROCK%20AIR%20LLC), [Hingham, MA](https://openairdocs.org/faa-place/MA/Hingham), built 2023, S/N 1280 - [N249LS](https://openairdocs.org/aircraft/N249LS): [R66 And Cattle LLC](https://openairdocs.org/faa-owner/R66%20AND%20CATTLE%20LLC), [Grapevine, TX](https://openairdocs.org/faa-place/TX/Grapevine), built 2025, S/N 1386 - [N24GP](https://openairdocs.org/aircraft/N24GP): [Gary R Blodgett](https://openairdocs.org/faa-owner/GARY%20R%20BLODGETT), [Wellington, FL](https://openairdocs.org/faa-place/FL/Wellington), built 2023, S/N 1283 - [N251ET](https://openairdocs.org/aircraft/N251ET): [Anderson Gregory](https://openairdocs.org/faa-owner/ANDERSON%20GREGORY), [Portola Valley, CA](https://openairdocs.org/faa-place/CA/Portola%20Valley), built 2022, S/N 1105 All 354: https://openairdocs.org/engine/rolls-royce-250-c300-a1/aircraft.md ## NTSB investigations (27) 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 CEN26LA203](https://openairdocs.org/ntsb/CEN26LA203), May 27, 2026: Robinson Helicopter R66 (N5488H), Fort Worth, TX, substantial damage. Probable cause: The flight instructor’s delayed remedial action and the student pilot’s failure to maintain helicopter control during hover. - [NTSB CEN26LA153](https://openairdocs.org/ntsb/CEN26LA153), Mar 27, 2026: Robinson Helicopter R66 (N4059A), Arlington, TX, substantial damage. Probable cause: The pilot’s failure to maintain clearance from terrain during the hover taxi. - [NTSB CEN26LA119](https://openairdocs.org/ntsb/CEN26LA119), Feb 19, 2026: Robinson Helicopter R66 (N940BH), Graford, TX, substantial damage. Probable cause: The pilot’s failure to maintain sufficient rotor speed during a practice autorotation to soft terrain which resulted in a loss of control and roll over. - [NTSB WPR26FA031](https://openairdocs.org/ntsb/WPR26FA031), Oct 23, 2025: Robinson Helicopter R66 (N67GA), Ekalaka, MT, substantial damage, 4 fatal, investigation ongoing - [NTSB CEN25FA367](https://openairdocs.org/ntsb/CEN25FA367), Sep 6, 2025: Robinson Helicopter R66 (N6633L), Lakeville, MN, destroyed, 2 fatal, investigation ongoing - [NTSB CEN25LA277](https://openairdocs.org/ntsb/CEN25LA277), Jul 22, 2025: Robinson Helicopter R66 (N88911), Maynard, IA, substantial damage, investigation ongoing - [NTSB WPR25LA199](https://openairdocs.org/ntsb/WPR25LA199), Jun 30, 2025: Robinson Helicopter R66 (N23UP), Tukwila, WA, substantial damage. Probable cause: The pilot’s failure to maintain yaw control during a takeoff to a hover in a gusting crosswind, which resulted in a loss of directional control and a subsequent hard landing. - [NTSB ERA25LA229](https://openairdocs.org/ntsb/ERA25LA229), Jun 12, 2025: Robinson Helicopter R66 (N633AF), Valparaiso, FL, substantial damage, investigation ongoing - [NTSB ANC25FA044](https://openairdocs.org/ntsb/ANC25FA044), Jun 4, 2025: Robinson Helicopter R66 (N962MD), Kaparuk, AK, substantial damage, 2 fatal, investigation ongoing - [NTSB CEN22LA006](https://openairdocs.org/ntsb/CEN22LA006), Oct 5, 2021: Robinson Helicopter R66 (N266RK), Delta, MO, substantial damage. Probable cause: The pilot’s inadequate inflight planning and his failure to see and avoid a wire which resulted in contact with the wire and subsequent ground impact. - [NTSB CEN21LA421](https://openairdocs.org/ntsb/CEN21LA421), Sep 15, 2021: Robinson Helicopter R66 (N166LW), Reynoldsville, IL, substantial damage. Probable cause: The pilot’s failure to maintain clearance from the wire during low altitude operations in windy conditions. - [NTSB WPR21FA300](https://openairdocs.org/ntsb/WPR21FA300), Aug 1, 2021: Robinson Helicopter R66 (N7000J), Colusa, CA, destroyed, 4 fatal. Probable cause: The pilot’s abrupt flight control input that led to mast bumping and a subsequent in-flight breakup. - [NTSB CEN21LA348](https://openairdocs.org/ntsb/CEN21LA348), Jul 30, 2021: Robinson Helicopter R66 (N857TL), Merry, NE, substantial damage. Probable cause: The pilot’s failure to maintain clearance from a wire during a low-level aerial application flight. - [NTSB ERA21LA270](https://openairdocs.org/ntsb/ERA21LA270), Jun 27, 2021: Robinson Helicopter R66 (N7078V), Waxhaw, NC, substantial damage. Probable cause: The pilot’s failure to maintain clearance from powerlines during a low-level aerial application flight. - [NTSB ERA21LA171](https://openairdocs.org/ntsb/ERA21LA171), Apr 3, 2021: Robinson Helicopter R66 (N577DD), Palmyra, PA, substantial damage. Probable cause: The pilot’s improper judgment to attempt a flight while impaired by medications, which resulted in the helicopter’s abnormal ground contact, loss of control, and collision with terrain. - [NTSB CEN21LA154](https://openairdocs.org/ntsb/CEN21LA154), Mar 9, 2021: Robinson Helicopter R66 (N49XB), Duson, LA, substantial damage. Probable cause: The uncertified pilot’s failure to maintain control of the helicopter when encountering a wind gust while hovering to land. - [NTSB ANC21LA020](https://openairdocs.org/ntsb/ANC21LA020), Mar 3, 2021: Robinson Helicopter R66 (N1767), Kodiak, AK, destroyed, 1 fatal. Probable cause: An impact with ocean waters for reasons that could not be determined based on the available information. - [NTSB ERA21LA121](https://openairdocs.org/ntsb/ERA21LA121), Jan 30, 2021: Robinson Helicopter R66 (N660TN), Knoxville, TN, substantial damage. Probable cause: The pilot’s failure to maintain directional control of the helicopter, which resulted in rear portion of the right skid contacting the ground and a subsequent dynamic rollover. - [NTSB ERA20LA220](https://openairdocs.org/ntsb/ERA20LA220), Jun 18, 2020: Robinson R66 (N4QW), Pikeville, NC, substantial damage, 1 fatal. Probable cause: The pilot’s failure to see and avoid a small diameter wire during low altitude agricultural spraying operations. Contributing to the accident was the pilot’s insufficient property survey. - [NTSB ERA20FA074](https://openairdocs.org/ntsb/ERA20FA074), Jan 10, 2020: Robinson R66 (N450MC), Mechanicsburg, PA, destroyed, 2 fatal. Probable cause: A severe left roll excursion after the onset of pitch and roll oscillations, which were not arrested by the pilot for undetermined reasons. This resulted in main rotor blade contact with the airframe… - [NTSB CEN19LA123](https://openairdocs.org/ntsb/CEN19LA123), Apr 21, 2019: Robinson R66 (N766WC), St Jacob, IL, substantial damage. Probable cause: The pilot's in-flight collision with an unmarked wire during an aerial application flight; the wire lacked contrast with the surrounding environment. - [NTSB GAA18CA366](https://openairdocs.org/ntsb/GAA18CA366), Jun 19, 2018: Robinson R66 (N7040P), Cordova, AK, substantial damage. Probable cause: The pilot’s selection of unsuitable terrain for landing, which resulted in impact with brush and a loss of helicopter control. - [NTSB GAA16CA290](https://openairdocs.org/ntsb/GAA16CA290), Jun 7, 2016: Robinson Helicopter R66 (N38SL), Beaumont, TX, substantial damage. Probable cause: The non-pilot owner's decision to start the helicopter while awaiting the pilot's arrival, which resulted in a loss of yaw control and a rollover. - [NTSB WPR16LA075](https://openairdocs.org/ntsb/WPR16LA075), Feb 23, 2016: Robinson Helicopter R66 (N266RH), Torrance, CA, substantial damage. Probable cause: A vibration of the helicopter, which resulted in an autorotation to soft terrain and subsequent impact of the tail boom with the main rotor. The reason for the vibration could not be determined… - [NTSB ERA15CA079](https://openairdocs.org/ntsb/ERA15CA079), Dec 22, 2014: Robinson Helicopter R66 (N64HF), Henniker, NH, substantial damage. Probable cause: The pilot's failure to maintain aircraft control while landing, which resulted in a collision with a snow bank. Contributing to the accident was ice that covered the landing surface. - [NTSB CEN15CA039](https://openairdocs.org/ntsb/CEN15CA039), Oct 29, 2014: Robinson Helicopter R66 (N67GA), Baton Rouge, LA, substantial damage. Probable cause: An in-flight bird strike. - [NTSB ERA13FA336](https://openairdocs.org/ntsb/ERA13FA336), Jul 28, 2013: Robinson R66 (N646AG), Noxen, PA, destroyed, 5 fatal. Probable cause: The pilot's decision to continue VFR flight into night instrument meteorological conditions, which resulted in spatial disorientation and a loss of control. ## FAA accident and incident reports (26) 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 20251022016209A](https://openairdocs.org/incident/20251022016209A), Oct 22, 2025: Robinson Helicopter Co R66 (N67GA), Ekalaka, MT, Destroyed, 4 fatal. A witness, who was located about 3/4 mile southeast of the accident site reported that she was inside her residence when she heard the helicopter overflying… - [Accident 20250906012849A](https://openairdocs.org/incident/20250906012849A), Sep 6, 2025: Robinson Helicopter Co R66 (N6633L), Lakeville, MN, Substantial damage, 2 fatal. The pilot refueled with a 25-gallon top-off before the flights for the day. The helicopter was flying back to its originating airport when the pilot chose an… - [Accident 20250721014209A](https://openairdocs.org/incident/20250721014209A), Jul 21, 2025: Robinson Helicopter Co R66 (N88911), Maynard, IA, Substantial damage. The pilot's failure to monitor the fuel quantity indicator during the flight led to fuel exhaustion and subsequent power loss causing substantial damage. - [Accident 20250630008439A](https://openairdocs.org/incident/20250630008439A), Jun 30, 2025: Robinson Helicopter Co R66 (N23UP), Tukwila, WA, Substantial damage. PIC was flying the helicopter under the supervision of a safety pilot (required per insurance company). ATCT video footage showed that after lift-off, the… - [Accident 20250612009709A](https://openairdocs.org/incident/20250612009709A), Jun 12, 2025: Robinson Helicopter Co R66 (N633AF), Destin, FL, Substantial damage. On 06/12/2025, at approximately 18:44 (l) [privacy data omitted] began a takeoff from Destin Executive Airport (dts), Destin, FL. The aircraft became… - [Accident 20250604012019A](https://openairdocs.org/incident/20250604012019A), Jun 4, 2025: Robinson Helicopter Co R66 (N962MD), Deadhorse, AK, Destroyed, 2 fatal. On 06/04/2025 at approximately 1700 Alaska local time a FAR 135 air carrier operators Robinson R-66 turbine helicopter made a controlled flight into terrain in… - [Accident 20211005017419A](https://openairdocs.org/incident/20211005017419A), Oct 5, 2021: Robinson Helicopter Co R66 (N266RK), Delta, MO, Substantial damage. The pilot was following a canal applying herbicide. A low set of power lines paralleled the canal and the pilot was focused on avoiding those wires. The… - [Accident 20210915011519A](https://openairdocs.org/incident/20210915011519A), Sep 15, 2021: Robinson Helicopter Co R66 (N166LW), Reynoldsville, IL, Minor damage. On 9/15/2021 at 1500 hrs N166LW, a Robinson helicopter, model R66, s/n 0766 hit a powerline while spraying the field below, causing damage to one blade and… - [Accident 20210801021219A](https://openairdocs.org/incident/20210801021219A), Aug 1, 2021: Robinson Helicopter Co R66 (N7000J), Colusa, CA, Destroyed, 4 fatal. On Sunday, August 1st, 2021 at approximately 1254 local a Robinson helicopter R66, N7000J, serial number 0411 was involved in an accident outside Colusa,… - [Accident 20210730019069A](https://openairdocs.org/incident/20210730019069A), Jul 30, 2021: Robinson Helicopter Co R66 (N857TL), Merry, NE, Substantial damage. On July 30, 2021 at approximately 1230 central daylight time (CDT) a Robinson R66 helicopter was substantially damaged due to impact with terrain after… - [Accident 20210627008769A](https://openairdocs.org/incident/20210627008769A), Jun 27, 2021: Robinson Helicopter Co R66 (N7078V), Monroe, NC, Substantial damage. On 6/27/2021 at approximately 1142 local time, Robinson R-66, registration number N7078V, piloted by [privacy data omitted], commercial pilot certificate… - [Incident 20210610006679I](https://openairdocs.org/incident/20210610006679I), Jun 10, 2021: Robinson Helicopter Co R66 (N857TL), Destin, FL, Minor damage. Pilot in command elected to land from steep approach, gusty winds induced settling with power, pilot failed to recognize increasing rate of descent. - [Accident 20210403007199A](https://openairdocs.org/incident/20210403007199A), Apr 3, 2021: Robinson Helicopter Co R66 (N577DD), Palmyra, PA, Destroyed. Upon landing at Reigle Airport 58N, N577DD, Robinson R66 helicopter, s/n: 675 was destroyed due to a dynamic rollover. - [Accident 20210309004579A](https://openairdocs.org/incident/20210309004579A), Mar 9, 2021: Robinson Helicopter Co R66 (N49XB), Duson, LA, Substantial damage. Pilot had flown from Louisiana regional airport (kreg) to his house in Duson, LA. He was attempting to land at helipad behind his house and had almost made… - [Accident 20210302002669A](https://openairdocs.org/incident/20210302002669A), Mar 2, 2021: Robinson Helicopter Co R66 (N1767), Kodiak, AK, Destroyed, 1 fatal. On March 2, 2021 at 1409 AKST, N1767, a Robinson R66, departed merrill field (mri) in anchorage, AK with an intended destination of Kodiak, AK (adq). At… - [Accident 20210130001879A](https://openairdocs.org/incident/20210130001879A), Jan 30, 2021: Robinson Helicopter Co R66 (N660TN), Knoxville, TN, Substantial damage. On 1/30/2021 at approximately 0930L, N660TN was attempting to take off from a private residence in Knoxville, TN. The aircraft was parked at an approximante… - [Accident 20200618005999A](https://openairdocs.org/incident/20200618005999A), Jun 18, 2020: Robinson Helicopter Co R66 (N4QW), Pikeville, NC, Destroyed, 1 fatal. Pilot was spraying insecticide and crashed into a field near 320 daw pate road, pilot struck a 5/16 inch steel braided cable. Cable was approximately 100 yards… - [Accident 20200109000439A](https://openairdocs.org/incident/20200109000439A), Jan 9, 2020: Robinson Helicopter Co R66 (N450MC), Mechanicsburg, PA, Destroyed, 2 fatal. On January 9, 2020, Robinson R66, N450MC, departed martin state airport (mtn), baltimore, Maryland, at 1958 eastern standard time (EST) and was destined for… - [Accident 20190420003099A](https://openairdocs.org/incident/20190420003099A), Apr 20, 2019: Robinson Helicopter Co R66 (N766WC), St Jacob, IL, Substantial damage. On April 20, 2019 at approximately 1915 hours, the Robinson R-66 agricultural helicopter sustained substantial damage and the 7000 hour airline transport pilot… - [Accident 20180619008269A](https://openairdocs.org/incident/20180619008269A), Jun 19, 2018: Robinson Helicopter Co R66 (N7040P), Cordova, AK, Substantial damage. On 6/19/2018 N7040P a Robinson R-66 helicopter departed Cordova Municipal Airport at 10:30 am with the pilot and 2 pax onboard, destination was a remote… - [Incident 20160817021709I](https://openairdocs.org/incident/20160817021709I), Aug 17, 2016: Robinson Helicopter Co. R 66 (N5YU), Indiantown, FL, Minor damage. On August 17 2016, the pilot of the helicopter, a Robinson R-66, stated he flew over the Indiantown Airport and came around to do a low approach to a hover on… - [Accident 20160607015189A](https://openairdocs.org/incident/20160607015189A), Jun 7, 2016: Robinson Helicopter Co R66 (N38SL), Beaumont, TX, Substantial damage. Owner of aircraft was waiting for pilot to arrive to take a local flight. While waiting for pilot owner decided to start aircraft to use the air conditioner to… - [Accident 20160223007729A](https://openairdocs.org/incident/20160223007729A), Feb 23, 2016: Robinson Helicopter Co R66 (N266RH), Torrance, CA, Substantial damage. Robinson R66 helicopter was being flown by Robinson test pilot [privacy data omitted] to put some time on systems that Robinson was testing. After liftoff and… - [Incident 20151124020419I](https://openairdocs.org/incident/20151124020419I), Nov 24, 2015: Robinson Helicopter R66 (N32AW), Sarasota, FL, Minor damage. Robinson Helicopter, N32AW, s/n 0654 had a bird strike at 500 ft AGL, 60 knots enroute to ksrq (Sarasota-Bradenton airport). Bird struck and came through… - [Accident 20141222021639A](https://openairdocs.org/incident/20141222021639A), Dec 22, 2014: Robinson Helicopter Co R66 (N64HF), Henniker, NH, Substantial damage. PIC stated he arrived at his helipad and it was snow covered. He said the black top area next to the helipad was clear and appeared just to be wet. He hovered… - [Accident 20130727017149A](https://openairdocs.org/incident/20130727017149A), Jul 27, 2013: Robinson Helicopter Co R66 (N646AG), Noxen, PA, Destroyed, 5 fatal. Pilot and 4 passengers departed tri city airport (czg). At 2150 local time enroute to arner memorial (22N)at approximately 2220 the pilot contacted kavp ATC… ## PMA parts (OpenAirDocs) (476, 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 engine model on its data sheet, so check the FAA record before relying on it. Newest first. - [953515-5HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198230829620240806153127.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 953515-5 · Apr 19, 2024 - [2540118HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197967007120240806153126.0001): Sleeve, Drive. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2540118 · Apr 19, 2024 - [2522102HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197263196720240806153124.0001): Pin, Straight, Headless. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2522102 · Apr 19, 2024 - [2525104HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196868118920240806153115.0001): Gasket. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2525104 · Apr 19, 2024 - [953508-8HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195845528120240806153123.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 953508-8 · Apr 19, 2024 - [2523240HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194020243820240806153124.0001): Bearing, Ball. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523240 · Apr 19, 2024 - [2523237HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192637502520240806153114.0001): Bearing, Ball. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523237 · Apr 19, 2024 - [366783HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191518234820240806153121.0001): Washer, Crush. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 366783 · Apr 19, 2024 - [951390HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190805198320240806153122.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951390 · Apr 19, 2024 - [2523475HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188463059820240806153114.0001): Gasket. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523475 · Apr 19, 2024 - [911241HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187211939220240806153121.0001): Washer, Flat. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 911241 · Apr 19, 2024 - [2541865HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187060334220240806153118.0001): Fitting, Filter – Py. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2541865 · Apr 19, 2024 - [2538982HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186402716120240806153118.0001): Nut. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2538982 · Apr 19, 2024 - [336132HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186038916720240806153120.0001): Tapered Pin, Split. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 336132 · Apr 19, 2024 - [2537747HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183482541520240806153117.0001): Diaphragm, By-Pass Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537747 · Apr 19, 2024 - [343673HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183448310620240806153120.0001): Bearing, Ball. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 343673 · Apr 19, 2024 - [2539179HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174834881420240806153125.0001): Bearing, Sintered. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539179 · Apr 19, 2024 - [2523123HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169800961820240806153113.0001): Diaphragm. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523123 · Apr 19, 2024 - [2523280HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166194098420240806153124.0001): Seat, Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523280 · Apr 19, 2024 - [2523862HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164077040320240806153115.0001): Weight. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523862 · Apr 19, 2024 - [82010546-001HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162439009820240806153127.0001): Bearing, Ball (Drive). HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 82010546-001 · Apr 19, 2024 - [951394HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162210222220240806153122.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951394 · Apr 19, 2024 - [953515-4HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162016971520240806153124.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 953515-4 · Apr 19, 2024 - [566-S-22HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159994137220240806153121.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 566-S-22 · Apr 19, 2024 - [2520488HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159863734220240806153112.0001): Gasket. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520488 · Apr 19, 2024 - [2525170HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156536116320240806153115.0001): Bushing. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2525170 · Apr 19, 2024 - [2537967HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156130736720240806153118.0001): Pin, Straight, Headless. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537967 · Apr 19, 2024 - [2543734HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154262461620240806153119.0001): Bearing, Ball. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2543734 · Apr 19, 2024 - [2537677HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID153584275520240806153116.0001): Pin, Straight, Headless. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537677 · Apr 19, 2024 - [2526146HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151866824120240806153115.0001): Bearing Assembly, Spool. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2526146 · Apr 19, 2024 - [2523549HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151640419920240806153114.0001): Tube. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523549 · Apr 19, 2024 - [2537678HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150291725420240806153117.0001): Screw. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537678 · Apr 19, 2024 - [2544027HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149078741120240806153119.0001): Screw, Allen Head. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2544027 · Apr 19, 2024 - [2537568HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148354740820240806153116.0001): Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537568 · Apr 19, 2024 - [2523242HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147671082320240806153114.0001): Spacer. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523242 · Apr 19, 2024 - [2666850-11HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146894977720240806153126.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2666850-11 · Apr 19, 2024 - [343698HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145578638320240806153121.0001): Pin. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 343698 · Apr 19, 2024 - [2523106HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143236384320240806153113.0001): Screen. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523106 · Apr 19, 2024 - [2543133HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141157213520240806153126.0001): Cover Assembly. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2543133 · Apr 19, 2024 - [2539533HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141060818620240806153125.0001): Bearing, Sintered. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539533 · Apr 19, 2024 - [2520561HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140670092220240806153112.0001): Roller. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520561 · Apr 19, 2024 - [2522105HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139886668120240806153124.0001): Spacer. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2522105 · Apr 19, 2024 - [2540117HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139016934520240806153126.0001): Spline, Drive. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2540117 · Apr 19, 2024 - [2539728HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132648741620240806153118.0001): Seat, Bellows. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539728 · Apr 19, 2024 - [2544026HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132478945820240806153119.0001): Plate, Retaining. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2544026 · Apr 19, 2024 - [951400HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131458458320240806153123.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951400 · Apr 19, 2024 - [951388HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127129729020240806153122.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951388 · Apr 19, 2024 - [2523282HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127064154420240806153125.0001): Seat, Valve. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523282 · Apr 19, 2024 - [2520569HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126382890320240806153112.0001): Bushing. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520569 · Apr 19, 2024 - [951790HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125947150920240806153123.0001): Packing, Preformed “O” Ring. HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951790 · Apr 19, 2024 All of them: https://openairdocs.org/engine/rolls-royce-250-c300-a1/pma.md --- 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.