{"id":"F2006B11309","name":"AD/MSR/1 - Stop Washer, Aileron Front Pivot - Installation","slug":"ad-msr-1-stop-washer-aileron-front-pivot-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":57152,"registerId":"commonwealth-F2006B11309-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/MSR/1 - Stop Washer, Aileron Front Pivot - Installation","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)  Aerospatiale Rallye Series Aeroplanes\n\n \n\nAD/MSR/1 Stop Washer, Aileron Front Pivot - Installation 8/62\n\nApplicability: All models with S/Nos. 2, 3, 8, 9, 11, 20, 26, 27, 31, 42, 43, 46, 50. Document:  1. Rallye SB No. 2; or\n\n2. MS Mod. No. 10. Compliance: Forthwith.\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, targeted safety directive addressing a specific mechanical issue on specific aircraft. It has not expanded beyond its original purpose of mandating a safety modification."},"complexity_factors":["Extremely short document (single page directive)","Only 13 specific serial numbers listed in applicability","Simple binary compliance requirement (install the washer)","No defined terms section","No cross-references to other legislation beyond two technical documents","Single unconditional command: \"Forthwith\"","No exceptions, exemptions, or conditional logic"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** issued by Australia's Civil Aviation Safety Authority (CASA). It applies to specific **Aerospatiale Rallye series aeroplanes** with particular serial numbers.\n\n**What it requires:**\n- **Immediate installation** of a \"stop washer\" on the **aileron front pivot** (a small component that helps control the aircraft's roll)\n- The directive references two technical documents that describe exactly how to do this: either Rallye Service Bulletin No. 2 or MS Modification No. 10\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders. They are issued when a safety problem is discovered that could affect flight safety. \"Forthwith\" means **do it immediately** — before the next flight. This suggests a serious safety issue with the aileron control system on these specific aircraft that requires urgent correction.\n\n**Who it affects:**\n- Owners and operators of Aerospatiale Rallye aircraft with serial numbers: 2, 3, 8, 9, 11, 20, 26, 27, 31, 42, 43, 46, 50\n- Maintenance engineers working on these aircraft"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The text does not indicate any change in scope from an earlier or original instrument. It sets a single, specific requirement for identified aircraft (see \"Applicability\") to install a stop washer per the referenced documents (see \"Document\") and requires compliance immediately (see \"Compliance\")."},"complexity_factors":["Narrow, clearly enumerated applicability (specific serial numbers) reduces scope complexity (Applicability).","Mandatory immediate compliance increases operational urgency but not legal ambiguity (Compliance: \"Forthwith\").","Technical execution delegated to external documents (Rallye SB No. 2 or MS Mod. No. 10), requiring users to obtain and follow those documents (Document).","AD text is short and prescriptive but lacks technical detail in-line, forcing reliance on referenced material.","No multiple compliance options or conditional exemptions stated, which simplifies legal interpretation but may complicate logistics for operators."],"plain_english_summary":"The AD mandates immediate installation of a stop washer on the aileron front pivot for specific Aerospatiale Rallye aeroplanes (listed serial numbers) using the procedures in Rallye SB No. 2 or MS Mod. No. 10.  \n\nOwners/operators of those aircraft and their maintenance providers must comply forthwith, bearing parts, labour and downtime costs; the AD fixes the obligation while delegating the technical steps to the referenced documents."}},"importantCases":[],"_links":{"self":"/api/acts/ad-msr-1-stop-washer-aileron-front-pivot-installation","history":"/api/acts/ad-msr-1-stop-washer-aileron-front-pivot-installation/history","analysis":"/api/acts/ad-msr-1-stop-washer-aileron-front-pivot-installation/analysis","conflicts":"/api/acts/ad-msr-1-stop-washer-aileron-front-pivot-installation/conflicts","importantCases":"/api/acts/ad-msr-1-stop-washer-aileron-front-pivot-installation/important-cases","documents":"/api/acts/ad-msr-1-stop-washer-aileron-front-pivot-installation/documents"}}