{"id":"F2006B04867","name":"AD/CASA/11 - Power Quadrant Cover","slug":"ad-casa-11-power-quadrant-cover","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44674,"registerId":"commonwealth-F2006B04867-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CASA/11 - Power Quadrant Cover","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)  Casa 212 Series Aeroplanes\n\n \n\nAD/CASA/11 Power Quadrant Cover 1/88\n\nApplicability: Model CASA-212 Series aeroplanes as listed in CASA S.B. No 212-76-05 Revision 1A.\n\n \n\nRequirement: Action in accordance with CASA S.B. No 212-76-05 Revision 1A. Compliance:  Prior to the issue of the next Maintenance Release after 28 February 1988.\n\nBackground: The Spanish D.G.A.C. and the FAA have Airworthiness Directives in place requiring modification of the power control quadrant cover, to prevent jamming of the power controls by objects falling into the open slots.\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\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument requires a specific modification to prevent power-control jamming and ties compliance to a named service bulletin and a clear deadline. The text provided does not indicate any expansion or narrowing of that original requirement; its scope is the listed CASA 212 models and the single modification action described."},"complexity_factors":["Single, narrowly framed technical requirement (modification of power quadrant cover)","Applicability limited to specific CASA 212 models listed in a referenced service bulletin","Compliance is time‑bound and straightforward (prior to next Maintenance Release after 28 February 1988)","Technical details are deferred to an external document (CASA Service Bulletin No. 212-76-05 Revision 1A), requiring users to consult that SB for implementation","Background references similar foreign directives (Spanish DGAC and FAA), which explains origin but does not add procedural complexity"],"plain_english_summary":"This instrument mandates a physical modification to the power-control quadrant cover on specified CASA 212 aeroplanes, to be done in accordance with CASA Service Bulletin No. 212‑76‑05 Rev 1A and completed before the next Maintenance Release issued after 28 February 1988.  \n\nIt affects owners/operators and maintenance organisations who must schedule and fund the work; the stated safety purpose is to prevent power-control jamming from objects entering open slots."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive from 1988 addressing a specific mechanical modification. It has not expanded beyond its original narrow purpose of mandating a cockpit modification for one aircraft type."},"complexity_factors":["Single, specific technical requirement referencing an external service bulletin","No defined terms section — uses standard aviation terminology only","Simple compliance deadline structure (one fixed date trigger)","No nested exceptions, conditional logic, or cross-references to other legislation","Extremely short document (approximately 150 words of substantive content)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA).\n\n**What it does:**\nIt requires owners and operators of specific CASA-212 series aircraft to modify the \"power quadrant cover\" (the protective casing around the throttle/power controls in the cockpit). The modification prevents objects — like pens, tools, or debris — from falling into the gaps and jamming the engine controls, which could cause a crash.\n\n**Who it affects:**\n- Operators of CASA-212 series aeroplanes (a Spanish-built twin-turboprop aircraft used for transport, military, and utility roles)\n- Maintenance organisations servicing these aircraft\n\n**What must happen:**\n- The work must follow CASA Service Bulletin No. 212-76-05 Revision 1A (the technical instruction manual for this fix)\n- It must be completed **before the next Maintenance Release is issued after 28 February 1988**\n  - A \"Maintenance Release\" is the official document certifying an aircraft is airworthy and safe to fly\n\n**Why it matters:**\nThis addresses a known safety hazard where loose objects could jam the power levers. Similar directives were already issued by Spanish and American aviation authorities, indicating this was a recognised international safety concern."}},"importantCases":[],"_links":{"self":"/api/acts/ad-casa-11-power-quadrant-cover","history":"/api/acts/ad-casa-11-power-quadrant-cover/history","analysis":"/api/acts/ad-casa-11-power-quadrant-cover/analysis","conflicts":"/api/acts/ad-casa-11-power-quadrant-cover/conflicts","importantCases":"/api/acts/ad-casa-11-power-quadrant-cover/important-cases","documents":"/api/acts/ad-casa-11-power-quadrant-cover/documents"}}