{"id":"F2006B08282","name":"AD/CESSNA 340/5 - Main Landing Gear Trunnion - Inspection and Replacement","slug":"ad-cessna-340-5-main-landing-gear-trunnion-inspection-and-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115603,"registerId":"commonwealth-F2006B08282-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 340/5 - Main Landing Gear Trunnion - Inspection and Replacement","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 340 Series Aeroplanes\n\n \n\nAD/CESSNA 340/5 Main Landing Gear Trunnion - Inspection\n\nand Replacement\n\nApplicability: All model 340 with S/Nos. 0325 to 0364. Document:  Cessna SL No. ME74-14.\n\nCompliance: As per requirement document.\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\n10/74\n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive focused on a specific mechanical issue in a narrow range of aircraft. It has not expanded beyond its original purpose of addressing the main landing gear trunnion issue in Cessna 340 serial numbers 0325-0364."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 1 defined applicability criterion (serial number range)","Single cross-reference to external document (Cessna SL No. ME74-14)","No conditional logic or nested exceptions","No interpretation section or defined terms","Straightforward compliance requirement ('As per requirement document')"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners and operators of specific Cessna 340 aircraft to inspect and potentially replace a critical part called the **main landing gear trunnion** (the pivot point that attaches the landing gear to the aircraft body).\n\n**Who it affects:**\n- Owners and operators of Cessna 340 model aircraft with **serial numbers 0325 through 0364**\n\n**What it requires:**\n- Inspection of the main landing gear trunnion\n- Replacement if necessary\n- Compliance must follow the procedures outlined in **Cessna Service Letter No. ME74-14**\n\n**Why it matters:**\nLanding gear failures can be catastrophic during takeoff or landing. This directive addresses a known safety issue with this specific batch of aircraft, ensuring potential structural weaknesses are caught before they cause accidents."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive, as supplied, establishes inspection and replacement requirements for the specified serial-numbered Cessna 340 aircraft and points to Cessna SL No. ME74-14 for technical detail. The text contains no statement that it changes or expands a prior scope; it sets a specific scope (Applicability) and delegates procedural detail to the cited service letter (Document; Compliance)."},"complexity_factors":["Narrow technical scope (applies only to Cessna 340 S/Ns 0325–0364) (Applicability).","Substantive requirements are delegated to an external document (Cessna SL No. ME74-14) rather than set out in the AD itself (Document; Compliance).","AD text provides no explicit compliance timeframe or procedural detail, increasing practical ambiguity for implementers (Compliance).","Subject matter is technical (landing gear trunnion inspection and replacement), requiring access to the service letter for method and acceptance criteria (Document).","Historic dating on the document (10/74) may affect availability of parts or contemporary procedures and thus implementation planning (date line)."],"plain_english_summary":"This AD requires owners/operators of Cessna 340 aircraft with serial numbers 0325–0364 to inspect the main landing gear trunnion and replace it if necessary, following the procedures in Cessna Service Letter No. ME74-14.  \n\nCASA issued the directive; operators bear costs and must consult the referenced service letter for the technical steps, acceptance criteria and any timing details (not specified in the AD text)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-340-5-main-landing-gear-trunnion-inspection-and-replacement","history":"/api/acts/ad-cessna-340-5-main-landing-gear-trunnion-inspection-and-replacement/history","analysis":"/api/acts/ad-cessna-340-5-main-landing-gear-trunnion-inspection-and-replacement/analysis","conflicts":"/api/acts/ad-cessna-340-5-main-landing-gear-trunnion-inspection-and-replacement/conflicts","importantCases":"/api/acts/ad-cessna-340-5-main-landing-gear-trunnion-inspection-and-replacement/important-cases","documents":"/api/acts/ad-cessna-340-5-main-landing-gear-trunnion-inspection-and-replacement/documents"}}