{"id":"F2006B10717","name":"AD/HU 369/54 - Governor Lever Control Rod - Replacement","slug":"ad-hu-369-54-governor-lever-control-rod-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":116695,"registerId":"commonwealth-F2006B10717-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/HU 369/54 - Governor Lever Control Rod - 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)  McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters\n\n \n\nAD/HU 369/54 Governor Lever Control Rod - Replacement 3/82\n\nApplicability: All models.\n\n \n\nRequirement: Remove P/N 369A7706-3 RPM Governor Lever Control Rod and replace with P/N 369A7706-5 RPM Governor Lever Control Rod.\n\n \n\nNote: FAA AD 82-01-18, Amendment 39-4292, Hughes SIN No. DN-87 and SIN No. HN-169 also refer to this subject.\n\n \n\nCompliance: Within 25 hours time in service after 25 January 1982.\n\n \n\nBackground: Failure of the aluminium control rod will result in loss of engine power control. The replacement rod is fabricated from steel.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\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":3,"scope_assessment":{"changed":false,"description":"The instrument's operative scope is a single, defined mechanical replacement for all 369-series helicopters: remove P/N 369A7706-3 and install P/N 369A7706-5 within the specified time. That scope aligns with the stated purpose (addressing failure of the aluminium rod by substituting a steel rod) and does not expand beyond that action in the text provided. (Applicability; Requirement; Background; Compliance)"},"complexity_factors":["Single, specific technical action: replace P/N 369A7706-3 with P/N 369A7706-5 (low legal complexity but technical specificity). (Requirement)","Short compliance window (25 hours time in service after 25 Jan 1982) increases operational and scheduling complexity for operators. (Compliance)","Applicability to all models of the 369 series means the measure affects the entire operator population for that type. (Applicability)","Requirement to use a specific part number constrains substitution and creates dependency on part supply. (Requirement)","Safety-critical nature (risk of loss of engine power control) raises implementation urgency and may affect operational decisions. (Background)","Cross-references to FAA AD and manufacturer service information require operators to consult external technical documents for details. (Note)"],"plain_english_summary":"This directive mandates that McDonnell Douglas (Hughes) and Kawasaki 369-series helicopters have the aluminium RPM governor lever control rod (P/N 369A7706-3) replaced with the steel part (P/N 369A7706-5) within 25 hours TIS after 25 January 1982. It affects aircraft owners/operators, who must arrange and pay for the part and labour; the change removes a failure mode that could cause loss of engine power control."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue safety directive focused specifically on replacing a known defective part. It has not expanded beyond its original purpose of addressing the aluminium control rod failure risk."},"complexity_factors":["Single, unambiguous requirement with no conditional logic","Only 2 defined part numbers (P/N 369A7706-3 and P/N 369A7706-5)","No cross-references to other legislation sections (only advisory references to related FAA documents)","Clear, fixed compliance deadline with simple calculation (25 hours time in service after specified date)","No exceptions, exemptions, or alternative compliance methods stated","Extremely short document (approximately 150 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) for specific helicopters.\n\n**What it does:** It requires owners and operators of McDonnell Douglas (Hughes) and Kawasaki 369 series helicopters to replace a specific aluminium engine control rod with a stronger steel version.\n\n**Why it matters:** The original aluminium rod can fail. If it breaks, the pilot loses control of engine power — a potentially catastrophic situation in flight. The replacement steel rod solves this safety problem.\n\n**Who must comply:** Anyone operating these helicopter models (all variants of the 369 series).\n\n**Deadline:** The replacement must be done within 25 hours of flight time after 25 January 1982.\n\n**Key details:**\n- **Old part to remove:** P/N 369A7706-3 (aluminium)\n- **New part to install:** P/N 369A7706-5 (steel)\n- **Related US safety notice:** FAA AD 82-01-18 (shows this was a known international safety issue)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-hu-369-54-governor-lever-control-rod-replacement","history":"/api/acts/ad-hu-369-54-governor-lever-control-rod-replacement/history","analysis":"/api/acts/ad-hu-369-54-governor-lever-control-rod-replacement/analysis","conflicts":"/api/acts/ad-hu-369-54-governor-lever-control-rod-replacement/conflicts","importantCases":"/api/acts/ad-hu-369-54-governor-lever-control-rod-replacement/important-cases","documents":"/api/acts/ad-hu-369-54-governor-lever-control-rod-replacement/documents"}}