{"id":"F2006B10238","name":"AD/GAZELLE/19 - SAMM Main Servo Controls","slug":"ad-gazelle-19-samm-main-servo-controls","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55896,"registerId":"commonwealth-F2006B10238-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GAZELLE/19 - SAMM Main Servo Controls","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Eurocopter SA341 and SA342 (Gazelle) Series Helicopters\n\n \n\nAD/GAZELLE/19 SAMM Main Servo Controls 13/94\n\nDM\n\nApplicability: All model SA 341/342 helicopters with SAMM Main Servo Control SC-5041-A1 (704A44-831-042) installed.\n\n \n\nRequirement: Action in accordance with Eurocopter SA 341/342 Mandatory SB No 05.31.\n\n \n\nNote: DGAC AD 94-194-037(B) refers.\n\n \n\nCompliance: As specified in the requirement document with a revised effective date of 14 October 1994.\n\n \n\nBackground: The manufacturer has advised that the servo control rod may have been incorrectly torqued during assembly.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD’s scope is limited to SA 341/342 helicopters that have the specified SAMM Main Servo Control installed and requires compliance with the manufacturer’s Mandatory Service Bulletin No 05.31 (Applicability; Requirement). There is no indication in the instrument text that the intended scope has been expanded or otherwise altered from that stated applicability."},"complexity_factors":["Limited scope but dependency on an external technical document (Eurocopter Mandatory SB No 05.31) (Requirement)","Applicability is conditional on installation of a specific part number (SAMM Main Servo Control SC-5041-A1 / 704A44-831-042) (Applicability)","Technical nature of the required work (torque/servo control) requires specialist maintenance knowledge not set out in the AD text (Background; Requirement)","Cross-reference to another regulator’s AD (DGAC) adds a layer for operators who may need to consult multiple documents (Note)","Compliance deadline given as a revised effective date, requiring operators to check timing and incorporate into maintenance schedules (Compliance)"],"plain_english_summary":"This AD mandates that operators of Eurocopter SA341/342 Gazelle helicopters fitted with the SAMM Main Servo Control SC-5041‑A1 follow Eurocopter Mandatory Service Bulletin No. 05.31, effective 14 October 1994. It was issued after the manufacturer warned of a possibly incorrectly torqued servo control rod.\n\nCASA requires compliance; affected owners/operators bear the inspection, corrective costs and downtime to mitigate the identified torque-related safety risk."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive targeting a specific mechanical defect in specific aircraft. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (under 200 words)","Only 1 defined applicability criterion (specific servo control part number)","Single requirement referencing external document (service bulletin)","No nested conditions or exceptions","No cross-references to other legislation or regulations beyond the parent Civil Aviation Regulations 1998","Straightforward compliance date with no alternative methods or phased implementation"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for specific helicopters.\n\n**What it does:**\nOrders owners and operators of certain Eurocopter Gazelle helicopters (models SA341 and SA342) to inspect and fix a potentially dangerous assembly error in the main servo control system.\n\n**Who it affects:**\nAnyone operating these specific helicopter models that have a particular servo control part installed (SAMM Main Servo Control SC-5041-A1).\n\n**Why it matters:**\nThe manufacturer discovered that a control rod in the servo system may have been incorrectly tightened (torqued) during assembly. If left unfixed, this could cause flight control problems — potentially catastrophic in a helicopter. The directive makes compliance mandatory and references the manufacturer's official service bulletin for the exact repair procedure.\n\n**Key details:**\n- **Compliance deadline:** 14 October 1994\n- **Action required:** Follow Eurocopter Mandatory Service Bulletin No. 05.31\n- **Related document:** French aviation authority (DGAC) issued a similar directive (AD 94-194-037(B))"}},"importantCases":[],"_links":{"self":"/api/acts/ad-gazelle-19-samm-main-servo-controls","history":"/api/acts/ad-gazelle-19-samm-main-servo-controls/history","analysis":"/api/acts/ad-gazelle-19-samm-main-servo-controls/analysis","conflicts":"/api/acts/ad-gazelle-19-samm-main-servo-controls/conflicts","importantCases":"/api/acts/ad-gazelle-19-samm-main-servo-controls/important-cases","documents":"/api/acts/ad-gazelle-19-samm-main-servo-controls/documents"}}