{"id":"F2006B08154","name":"AD/CESSNA 310/28 - Main Landing Gear Upper Strut - Inspection","slug":"ad-cessna-310-28-main-landing-gear-upper-strut-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115321,"registerId":"commonwealth-F2006B08154-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 310/28 - Main Landing Gear Upper Strut - 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)  Cessna 310 Series Aeroplanes\n\n \n\nAD/CESSNA 310/28 Main Landing Gear Upper Strut - Inspection 3/72\n\nApplicability: All models with S/Nos. as listed in Requirement Document. Requirement: Action in accordance with Cessna SL ME71-28.\n\nCompliance: Before issue of a Certificate of Airworthiness.\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\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive, as supplied, sets a single, focused requirement: inspect the main landing gear upper strut on Cessna 310 aeroplanes identified by serial number, in accordance with Cessna SL ME71-28, before issuing a Certificate of Airworthiness. The text contains no language indicating an alteration of scope from a prior or original intent."},"complexity_factors":["Cross-reference to an external technical document (Cessna SL ME71-28) for the substantive inspection procedure","Dependence on a separate Requirement Document for the list of affected serial numbers (Applicability)","Timing constraint tied to a regulatory milestone (inspection required before issue of Certificate of Airworthiness)","Minimal procedural detail in the directive itself (requires implementers to obtain and interpret external documents)"],"plain_english_summary":"This directive requires owners/operators of specified Cessna 310 serial numbers to have the main landing‑gear upper strut inspected in accordance with Cessna Service Letter SL ME71‑28 before a Certificate of Airworthiness is issued. Maintenance organisations perform the work and owners pay; CASA (or its delegate) must be satisfied with the inspection for certification. It matters because aircraft cannot be certified for flight until the inspection and any corrective actions per the service letter are completed."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive from 1972 (indicated by '3/72' in the reference number). It addresses one specific technical issue on one aircraft type. There is no evidence of scope creep; it remains tightly focused on its original safety purpose."},"complexity_factors":["Extremely short document (approximately 100 words of substantive content)","No defined terms section — relies entirely on external reference to Cessna Service Letter SL ME71-28","Simple binary applicability (all models with specific serial numbers)","Single compliance trigger (before Certificate of Airworthiness issuance)","No conditional logic, exceptions, or nested provisions","Cross-reference to only one external technical document"],"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). Think of it as a \"recall notice\" for aircraft, but legally binding.\n\n**What it does:** It requires owners and operators of **Cessna 310 series aeroplanes** (twin-engine aircraft) to inspect the **main landing gear upper strut** — a critical structural component that absorbs impact when the plane lands.\n\n**Who must comply:** Anyone who owns or operates a Cessna 310 with specific serial numbers listed in the referenced Cessna Service Letter (SL ME71-28).\n\n**When it must be done:** **Before the aircraft can be issued a Certificate of Airworthiness** — meaning you cannot legally fly or register the aircraft until this inspection is complete.\n\n**Why it matters:** Landing gear failures can be catastrophic. This directive ensures a known defect or wear issue in the upper strut assembly is identified and fixed before the aircraft returns to service. It protects passengers, crew, and people on the ground."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-310-28-main-landing-gear-upper-strut-inspection","history":"/api/acts/ad-cessna-310-28-main-landing-gear-upper-strut-inspection/history","analysis":"/api/acts/ad-cessna-310-28-main-landing-gear-upper-strut-inspection/analysis","conflicts":"/api/acts/ad-cessna-310-28-main-landing-gear-upper-strut-inspection/conflicts","importantCases":"/api/acts/ad-cessna-310-28-main-landing-gear-upper-strut-inspection/important-cases","documents":"/api/acts/ad-cessna-310-28-main-landing-gear-upper-strut-inspection/documents"}}