{"title":"Airbus Helicopters Hydraulic Servo Controls","description":"\u003ch2\u003eAirbus Helicopters hydraulic servo controls\u003c\/h2\u003e\n\u003cp\u003eThe main rotor \u003cstrong\u003ehydraulic servo controls\u003c\/strong\u003e (servocontrols) translate the pilot's cyclic and collective inputs into blade pitch. On the \u003cstrong\u003eH125 (AS350 B3)\u003c\/strong\u003e, \u003cstrong\u003eAS355 TwinStar\u003c\/strong\u003e and \u003cstrong\u003eH130 \/ EC130\u003c\/strong\u003e, three main rotor servos act on the swashplate: front, left and right. They are flight-critical, serialized components (ATA 67 – Rotor Flight Control) and are supplied overhauled or on exchange with EASA Form 1.\u003c\/p\u003e\n\u003ch3\u003eServo controls and cross-reference\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eP\/N\u003c\/th\u003e\n\u003cth\u003eAirbus P\/N \/ cross-reference\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003cth\u003eAirbus effectivity\u003c\/th\u003e\n\u003cth\u003eCondition\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sc8042\"\u003eSC8042\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e704A44-8311-02 · 8042 · NSN 1650-14-403-5683\u003c\/td\u003e\n\u003ctd\u003eServo-control, front and LH\u003c\/td\u003e\n\u003ctd\u003eAS350 B3 (H125) · AS355 F, F1, F2, N, NP · EC130 B4, T2\u003c\/td\u003e\n\u003ctd\u003eOverhauled \/ exchange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sc8043\"\u003eSC8043\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e704A44-8311-03 · 8043 · NSN 1650-14-403-5684\u003c\/td\u003e\n\u003ctd\u003eServo-control, RH\u003c\/td\u003e\n\u003ctd\u003eAS350 B3 (H125) · AS355 F, F1, F2, N, NP · EC130 B4, T2\u003c\/td\u003e\n\u003ctd\u003eOverhauled \/ exchange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/sa7450-100\"\u003eSA7450-100\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e704A44-8311-70 (704A44831170) · SA7450-000\u003c\/td\u003e\n\u003ctd\u003eServo-actuator with detector\u003c\/td\u003e\n\u003ctd\u003eAS350 B3 (H125) · AS355 F, F1, F2, N, NP · EC130 B4, T2\u003c\/td\u003e\n\u003ctd\u003eOverhauled \/ exchange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/704a34-412-033\"\u003e704A34-412-033\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eNSN 4720-14-428-8933\u003c\/td\u003e\n\u003ctd\u003eHose (forward servo-control hydraulic line)\u003c\/td\u003e\n\u003ctd\u003eAS350 B, B1, B2, B3, BA, BB, C, D · AS355 E, F, F1, F2, N, NP\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eEffectivity per the Airbus Helicopters Technical Catalog – Spare Parts and Ground Support (Ecureuil and EC 130), September 2026. Earlier AS350 versions (B, B1, B2, BA, D) use different servo P\/Ns – send us your registration and we will confirm.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eExchange and overhaul\u003c\/h3\u003e\n\u003cp\u003eMain rotor servos are usually supplied on an \u003cstrong\u003eexchange\u003c\/strong\u003e basis: you receive an overhauled unit with its release certificate and return your removed core. Send us the P\/N, the serial number of your unit and your delivery location and we will reply with price, core terms and lead time, including AOG requests.\u003c\/p\u003e\n\u003ch3\u003eWhy Blackbird Aviation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFounded by a helicopter pilot; focused on Airbus Helicopters H125, H130, AS355 and H135 operators.\u003c\/li\u003e\n\u003cli\u003eStock in Fort Lauderdale (USA) and São Paulo (Brazil); worldwide shipping.\u003c\/li\u003e\n\u003cli\u003eEvery part ships with the manufacturer's release document and a Blackbird Certificate of Conformance with lot traceability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways confirm eligibility for your aircraft model and serial number against the Airbus Helicopters IPC and your approved maintenance data. See also \u003ca href=\"\/collections\/aircraft-airbus-helicopters\"\u003eall Airbus Helicopters parts\u003c\/a\u003e, \u003ca href=\"\/collections\/airbus-helicopters-bearings\"\u003eAirbus Helicopters bearings\u003c\/a\u003e and \u003ca href=\"\/collections\/airbus-helicopters-batteries\"\u003eAirbus Helicopters batteries\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"sc8042","title":"Front and Left Main Rotor Servo Control – P\/N SC8042","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSC8042 Front and Left Main Rotor Servo Control\u003c\/strong\u003e is an OEM hydraulic servo actuator designed for Airbus Helicopters. It is installed as the front and left main rotor servo control within the hydraulic flight control system, converting pilot flight control inputs into hydraulic actuation of the main rotor controls. The unit is identified by Airbus Helicopters as \u003cstrong\u003eP\/N 704A44-8311-02\u003c\/strong\u003e and is used on selected AS350, H125, EC130, and AS355 helicopters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number: \u003c\/strong\u003eSC8042\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAirbus Part Number: \u003c\/strong\u003e704A44-8311-02\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent Type: \u003c\/strong\u003eFront and Left Main Rotor Servo Control\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Hydraulic Flight Control System\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Position: \u003c\/strong\u003eFront and Left Main Rotor Servo\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM: \u003c\/strong\u003eAirbus Helicopters\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTRACEABILITY:\u003c\/strong\u003e EASA FORM 1 \/ 8130\u003c\/p\u003e","brand":"AIRBUS","offers":[{"title":"Default Title","offer_id":42386351587403,"sku":"SC8042","price":35800.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/8981\/3067\/files\/ChatGPTImageMay5_2026_02_56_47PM.png?v=1778007414"},{"product_id":"sc8043","title":"Right Main Rotor Servo Control – P\/N SC8043","description":"\u003cp\u003eThe \u003cstrong\u003eSC8043 Right Main Rotor Servo Control\u003c\/strong\u003e is an OEM hydraulic servo actuator manufactured for Airbus Helicopters. It is installed as the \u003cstrong\u003eright main rotor servo control\u003c\/strong\u003e in the hydraulic flight control system, converting pilot flight control inputs into hydraulic movement of the main rotor controls. The unit is identified by Airbus Helicopters as \u003cstrong\u003eP\/N 704A44-8311-03\u003c\/strong\u003e and is installed on selected AS350, H125, EC130, and AS355 helicopters equipped with compatible hydraulic systems.\u003c\/p\u003e\n\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eTechnical Specifications\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e SC8043\u003cbr\u003e\u003cstrong\u003eAirbus Part Number:\u003c\/strong\u003e 704A44-8311-03\u003cbr\u003e\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Right Main Rotor Servo Control\u003cbr\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Hydraulic Flight Control System\u003cbr\u003e\u003cstrong\u003eInstallation Position:\u003c\/strong\u003e Right Main Rotor Servo\u003cbr\u003e\u003cstrong\u003eOEM:\u003c\/strong\u003e Airbus Helicopters                                                                                      \u003cstrong\u003eTRACEABILITY\u003c\/strong\u003e: EASA FORM 1 \/ 8130\u003c\/p\u003e","brand":"AIRBUS","offers":[{"title":"Default Title","offer_id":42386352570443,"sku":"SC8043","price":34900.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/8981\/3067\/files\/ChatGPTImageMay5_2026_02_56_47PM.png?v=1778007414"},{"product_id":"sa7450-100","title":"SA7450-100 – Main servocontrol","description":"\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eSA7450-100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDescription\u003c\/th\u003e\n\u003ctd\u003eMain servocontrol\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCondition\u003c\/th\u003e\n\u003ctd\u003eOH\/EXCHANGE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAlternate P\/N\u003c\/th\u003e\n\u003ctd\u003e704A44831170; SA7450-000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCross Reference\u003c\/th\u003e\n\u003ctd\u003eSA7450-000, 704A44831170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eApplicable Aircraft\u003c\/th\u003e\n\u003ctd\u003eH125 ; H130 ; EC 130: 130 B, 130 4D; ECUREUIL: 350 B3, 355 F, 355 F1, 355 F2, 355 N, 355 NP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTraceability\u003c\/th\u003e\n\u003ctd\u003eEASA Form 1 \/ FAA 8130-3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eAIRBUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eSA7450-100 Main servocontrol, oh\/exchange condition, supplied by Blackbird Aviation with traceability documentation.\u003c\/p\u003e","brand":"AIRBUS","offers":[{"title":"Default Title","offer_id":42390130327627,"sku":"SA7450-100","price":39800.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/8981\/3067\/files\/ChatGPTImageMay4_2026_10_46_03AM.png?v=1781728096"},{"product_id":"704a34-412-033","title":"704A34-412-033 Hose – Airbus Helicopters","description":"\u003ch2\u003e704A34-412-033 Hose\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e704A34-412-033\u003c\/strong\u003e – hose (Airbus Helicopters), supplied by Blackbird Aviation from stock. Every order ships with the manufacturer's release documentation and a Blackbird Certificate of Conformance with lot-split record, so the part is traceable to its source.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003ctd\u003e704A34-412-033\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003ctd\u003eHose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer \/ OEM\u003c\/th\u003e\n\u003ctd\u003eAirbus Helicopters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRelease document\u003c\/th\u003e\n\u003ctd\u003eManufacturer's release documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailability\u003c\/th\u003e\n\u003ctd\u003eIn stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eNeed a different quantity, an alternate or a superseding part number? Click \u003cem\u003eRequest a Quote\u003c\/em\u003e and our team will reply with price, lead time and documentation.\u003c\/p\u003e","brand":"AIRBUS","offers":[{"title":"Default Title","offer_id":42633300836427,"sku":"704A34-412-033","price":154.61,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/8981\/3067\/files\/Bird_1_2.png?v=1781727833"}],"url":"https:\/\/bbirdaviation.com\/collections\/airbus-helicopters-hydraulic-servo-controls.oembed","provider":"Blackbird Aviation","version":"1.0","type":"link"}