{"id":"F2006B11312","name":"AD/MSR/12 - Elevator Control Rod - Inspection","slug":"ad-msr-12-elevator-control-rod-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":57160,"registerId":"commonwealth-F2006B11312-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/MSR/12 - Elevator Control Rod - Inspection","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/12 Elevator Control Rod - Inspection 8/71\n\nApplicability: All models not modified in accordance with Rallye SB No. 85. Document:  Rallye SB No. 85.\n\nCompliance: Within 100 hours time in service after 30 September 1971 and thereafter at intervals not exceeding 100 hours time in service.\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\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Based solely on the supplied text, the directive defines a single, unchanged scope: all Aerospatiale Rallye models not modified per Rallye SB No. 85 must undergo the prescribed inspections. The instrument does not show amendments or an expanded/reduced applicability in the provided material, so there is no indication of a change in scope from the original wording contained here."},"complexity_factors":["Narrow technical scope: single component (elevator control rod) on a single aircraft family.","Simple prescriptive timing: fixed 100‑hour inspection interval and clear initial compliance date.","Dependence on an external technical document (Rallye SB No. 85) for inspection/detail raises interpretive reliance but does not by itself add procedural complexity.","No enforcement, acceptance criteria, or remediation procedures included in the supplied text, requiring reference to the service bulletin for operational detail.","Vintage dating (1971) may create practical complexity in locating applicable modifications or service‑bulletin versions, but this is an external archival issue rather than a statutory complexity."],"plain_english_summary":"This directive mandates recurring inspections of the elevator control rod on Aerospatiale Rallye aircraft not modified per Rallye Service Bulletin No. 85: the first inspection within 100 hours' time‑in‑service after 30 September 1971 and every 100 hours thereafter. It affects owners/operators and maintenance organisations, imposing recurring inspection costs and downtime, while offering an alternative route of compliance by adopting the SB‑85 modification to avoid the inspection cycle."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a vintage 1971 airworthiness directive (AD/MSR/12, dated 8/71) that has remained focused on its original narrow purpose: inspecting elevator control rods on a specific aircraft series. There is no evidence of scope creep — it targets one component on one aircraft type with a straightforward repetitive inspection requirement."},"complexity_factors":["Single, specific mechanical component targeted (elevator control rod)","Clear binary applicability test (modified per SB No. 85 or not)","Simple compliance schedule (100 hours after 30 Sept 1971, then every 100 hours)","Only one external document reference (Rallye SB No. 85)","No defined terms section, no cross-references to other legislation, no conditional exceptions","Extremely short — approximately 100 words of substantive content"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:** It requires owners and operators of **Aerospatiale Rallye series aeroplanes** to inspect the **elevator control rod** (a critical component that controls the up-and-down movement of the aircraft's tail) for defects.\n\n**Who must comply:** Anyone operating an Aerospatiale Rallye aircraft that has **not** been modified according to **Rallye Service Bulletin No. 85**.\n\n**When to do it:**\n- **First inspection:** Within 100 hours of flying time after 30 September 1971\n- **Repeat inspections:** Every 100 hours of flying time thereafter\n\n**Why it matters:** Control rod failures can cause loss of aircraft control. This directive prevents accidents by catching wear, cracks, or corrosion before they become catastrophic. The repetitive 100-hour interval reflects the serious safety risk — this isn't a one-off check, but ongoing vigilance.\n\n**Key document reference:** Operators must follow the procedures in **Rallye Service Bulletin No. 85** when conducting these inspections."}},"importantCases":[],"_links":{"self":"/api/acts/ad-msr-12-elevator-control-rod-inspection","history":"/api/acts/ad-msr-12-elevator-control-rod-inspection/history","analysis":"/api/acts/ad-msr-12-elevator-control-rod-inspection/analysis","conflicts":"/api/acts/ad-msr-12-elevator-control-rod-inspection/conflicts","importantCases":"/api/acts/ad-msr-12-elevator-control-rod-inspection/important-cases","documents":"/api/acts/ad-msr-12-elevator-control-rod-inspection/documents"}}