{"id":"F2006B02327","name":"AD/AMD 10/12 - Landing Gear Selector Solenoid Valve - Improved Ball Pushrods and Improved Decompression Slide Spool","slug":"ad-amd-10-12-landing-gear-selector-solenoid-valve-improved-ball-pushrods-and-improved-decompression-","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41557,"registerId":"commonwealth-F2006B02327-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AMD 10/12 - Landing Gear Selector Solenoid Valve - Improved Ball Pushrods and Improved Decompression Slide Spool","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)  AMD Falcon 10 Series Aeroplanes\n\n \n\nAD/AMD 10/12 Landing Gear Selector Solenoid Valve - Improved Ball Pushrods and Improved Decompression\n\nSlide Spool\n\n\n3/79\n\n \n\nApplicability: All models.\n\n \n\nDocument: AMD SB BA F10-0149 R1. (F10-32-018) AMD SB BA F10-0168 R1. (F10-32-022).\n\n \n\nCompliance: Before 31 January 1980.\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\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive. It has not expanded beyond its original purpose of mandating a specific mechanical modification to address a known safety defect in the landing gear system."},"complexity_factors":["Very short document (approximately 150 words)","No defined terms section","No cross-references to other legislation beyond the enabling Civil Aviation Regulations 1998","Simple conditional structure: applicability statement + compliance deadline only","Single technical requirement with reference to manufacturer service bulletins","No exceptions, exemptions, or nested conditions"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998. It mandates a safety modification for **AMD Falcon 10 series aeroplanes** (business jets).\n\n**What it requires:**\n- Aircraft owners/operators must replace or upgrade specific parts in the **landing gear selector solenoid valve** — namely the **ball pushrods** and **decompression slide spool** — with improved versions.\n\n**Why it matters:**\n- These components control the hydraulic system that extends and retracts the landing gear. Faulty parts could cause landing gear failure, potentially leading to a crash.\n\n**Who must comply:**\n- All operators of AMD Falcon 10 series aircraft, regardless of specific model variant.\n\n**Deadline:**\n- The work had to be completed **before 31 January 1980**.\n\n**Technical references:**\n- The directive references two Service Bulletins (SB BA F10-0149 and F10-0168) from the aircraft manufacturer (AMD/Aérospatiale/Mystère/Dassault) that detail the required modifications."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive applies to \"All models\" of the AMD Falcon 10 series and mandates fitting two improved parts by a specified date. The excerpt contains no indication that the directive expands or narrows applicability from a prior instrument; the scope in the provided text is the stated universal application to the type. (Applicability: All models; Compliance: Before 31 January 1980.)"},"complexity_factors":["Clear, single technical requirement: install two specified improved components (improved ball pushrods and improved decompression slide spool).","Universal applicability: applies to all models of the type, reducing per-model variation. (Applicability: All models.)","Fixed calendar compliance date rather than conditional triggers simplifies timing but concentrates workload. (Compliance: Before 31 January 1980.)","Technical execution delegated to referenced service bulletins, which centralise procedural detail outside the AD (Document: AMD SB BA F10-0149 R1; AMD SB BA F10-0168 R1).","Absence of explanatory detail in the excerpt about the underlying fault increases interpretive uncertainty regarding the precise safety trade-offs and urgency."],"plain_english_summary":"This directive mandates that all AMD Falcon 10 aircraft be retrofitted with improved ball pushrods and an improved decompression slide spool in the landing‑gear selector solenoid valve per the manufacturer's service bulletins. Operators must complete the work by 31 January 1980, bear the costs, and follow the referenced service instructions for technical implementation."}},"importantCases":[],"_links":{"self":"/api/acts/ad-amd-10-12-landing-gear-selector-solenoid-valve-improved-ball-pushrods-and-improved-decompression-","history":"/api/acts/ad-amd-10-12-landing-gear-selector-solenoid-valve-improved-ball-pushrods-and-improved-decompression-/history","analysis":"/api/acts/ad-amd-10-12-landing-gear-selector-solenoid-valve-improved-ball-pushrods-and-improved-decompression-/analysis","conflicts":"/api/acts/ad-amd-10-12-landing-gear-selector-solenoid-valve-improved-ball-pushrods-and-improved-decompression-/conflicts","importantCases":"/api/acts/ad-amd-10-12-landing-gear-selector-solenoid-valve-improved-ball-pushrods-and-improved-decompression-/important-cases","documents":"/api/acts/ad-amd-10-12-landing-gear-selector-solenoid-valve-improved-ball-pushrods-and-improved-decompression-/documents"}}