{"id":"F2006B10690","name":"AD/HU 369/26 - Main Rotor Pitch Link Bolts and Nuts - Inspection","slug":"ad-hu-369-26-main-rotor-pitch-link-bolts-and-nuts-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116644,"registerId":"commonwealth-F2006B10690-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HU 369/26 - Main Rotor Pitch Link Bolts and Nuts - 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 369/26 Main Rotor Pitch Link Bolts and Nuts - Inspection\n\n\n3/77\n\n \n\nApplicability:  All models. Document: Hughes SIN HN-108.\n\nCompliance: Within 100 hours time in service after 31 March 1977.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\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":1351},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains focused on its original purpose: requiring inspection of specific hardware on Hughes 369 helicopters. There is no evidence of scope creep or expansion beyond the specific mechanical component identified in the original 1977 directive."},"complexity_factors":["Extremely short length (single page directive)","Only one compliance requirement (inspection within time limit)","No legislative cross-references or defined terms","Simple conditional logic (if you operate this helicopter, you must inspect these bolts)"],"plain_english_summary":"**What this is:** A mandatory safety inspection rule (called an Airworthiness Directive) for certain helicopters.\n\n**What it requires:** Owners and operators of Hughes 369 series helicopters (including models made by McDonnell Douglas and Kawasaki) must inspect the bolts and nuts that connect the main rotor pitch links. This inspection must be done within 100 hours of flight time after 31 March 1977.\n\n**Who it affects:** Anyone who owns, operates, or maintains Hughes 369 helicopters in Australia.\n\n**Why it matters:** These bolts are critical for controlling the helicopter's main rotor. If they fail, the pilot could lose control of the aircraft. This rule ensures potential defects are found before they cause accidents.\n\n**Key details:**\n- **Applies to:** All models of the Hughes 369 series\n- **Compliance deadline:** Within 100 hours of flying time after 31 March 1977\n- **Technical reference:** Follow the procedures in Hughes Service Information Notice HN-108"}},"importantCases":[],"_links":{"self":"/api/acts/ad-hu-369-26-main-rotor-pitch-link-bolts-and-nuts-inspection","history":"/api/acts/ad-hu-369-26-main-rotor-pitch-link-bolts-and-nuts-inspection/history","analysis":"/api/acts/ad-hu-369-26-main-rotor-pitch-link-bolts-and-nuts-inspection/analysis","conflicts":"/api/acts/ad-hu-369-26-main-rotor-pitch-link-bolts-and-nuts-inspection/conflicts","importantCases":"/api/acts/ad-hu-369-26-main-rotor-pitch-link-bolts-and-nuts-inspection/important-cases","documents":"/api/acts/ad-hu-369-26-main-rotor-pitch-link-bolts-and-nuts-inspection/documents"}}