{"id":"F2006B10727","name":"AD/HU 369/63 - Landing Gear Struts and Feet - Inspection","slug":"ad-hu-369-63-landing-gear-struts-and-feet-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116715,"registerId":"commonwealth-F2006B10727-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HU 369/63 - Landing Gear Struts and Feet - 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)  McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters\n\n \n\nAD/HU 369/63 Landing Gear Struts and Feet - Inspection 2/85\n\nApplicability: All 500C model 369HS Series. Requirement: Hughes S.I.N. HN-196.\n\nCompliance: Within 300 hours time in service after 28 February 1985.\n\n \n\nBackground: Cracking of certain P/N landing gear struts and feet is suspected. Revised corrosion prevention and sealing techniques and torque load values for the landing gear feet/strut attach bolts are also introduced.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\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":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1796},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains focused on its original narrow purpose: addressing suspected cracking in landing gear components for a specific helicopter model series. There is no expansion beyond the initial safety concern regarding strut and foot integrity."},"complexity_factors":["Single aircraft type applicability (Hughes 500C/369HS)","Single compliance action with reference to external technical manual (Hughes S.I.N. HN-196)","Simple time-based trigger (300 hours time-in-service after fixed date)","No defined terms section, exceptions, or conditional logic","Document length is less than 150 words excluding title"],"plain_english_summary":"**What this does:** This is an aviation safety order (called an Airworthiness Directive) that requires owners of specific Hughes helicopters to inspect the landing gear for dangerous cracks.\n\n**Who it affects:** Operators of Hughes 500C model 369HS Series helicopters (also known as McDonnell Douglas or Kawasaki 369 Series).\n\n**What must be done:** Operators must follow a specific technical instruction from the manufacturer (Hughes Service Instruction Notice HN-196) to:\n- Inspect landing gear struts and feet for cracking\n- Apply new corrosion prevention and sealing methods\n- Use updated tightening force values (torque settings) for the bolts\n\n**When:** The work must be done within 300 hours of flight time after 28 February 1985.\n\n**Why it matters:** Cracks in landing gear can cause the helicopter to collapse during landing, takeoff, or while parked, risking injury to passengers and ground crew."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hu-369-63-landing-gear-struts-and-feet-inspection","history":"/api/acts/ad-hu-369-63-landing-gear-struts-and-feet-inspection/history","analysis":"/api/acts/ad-hu-369-63-landing-gear-struts-and-feet-inspection/analysis","conflicts":"/api/acts/ad-hu-369-63-landing-gear-struts-and-feet-inspection/conflicts","importantCases":"/api/acts/ad-hu-369-63-landing-gear-struts-and-feet-inspection/important-cases","documents":"/api/acts/ad-hu-369-63-landing-gear-struts-and-feet-inspection/documents"}}