{"id":"F2006B06199","name":"AD/PHS/5 - Blades 6800, 6900 and 7000 Series Blade Face Alignment - Inspection","slug":"ad-phs-5-blades-6800-6900-and-7000-series-blade-face-alignment-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47073,"registerId":"commonwealth-F2006B06199-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PHS/5 - Blades 6800, 6900 and 7000 Series Blade Face Alignment - 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 - 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Propellers - Variable Pitch - Hamilton Standard\n\n \n\nAD/PHS/5 Blades 6800, 6900 and 7000 Series Blade NK\n\nFace Alignment - Inspection\n\nApplicability: As specified in the requirement document. Document:  1. Hamilton Standard Service Manual 130B; or\n\n2. ANO 107.1.5.0.2.3.\n\n \n\nCompliance: Before installation in an aircraft after each overhaul.\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n \n\n![](image.001.png)  \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD text itself sets a narrowly circumscribed requirement: perform a blade face alignment inspection for the listed blade series before installation after each overhaul, with applicability and procedure set out in the named documents. The directive does not indicate any expansion or narrowing of that scope relative to its stated content, so no change from the instrument's stated scope is evident in the text provided."},"complexity_factors":["Narrow technical scope: limited to Hamilton Standard 6800, 6900 and 7000 series blades (reduces complexity).","Delegation to external documents: applicability and inspection procedures are specified in external manuals (Hamilton Standard Service Manual 130B or ANO 107.1.5.0.2.3), which adds practical complexity for implementers.","Recurring obligation: requirement applies after every overhaul, creating ongoing operational impact rather than a one-off action.","Regulatory embedding: issued under Part 39/107 (Airworthiness Directives), so enforcement and regulatory context matter for compliance but are not detailed in the AD text.","Limited procedural detail in AD text: technical measurement and acceptance criteria are not in the directive itself, requiring reliance on the referenced documents and technical staff judgment."],"plain_english_summary":"What this instrument does, mechanically\n\n- This is an Airworthiness Directive (AD) that requires an inspection of blade face alignment for Hamilton Standard variable-pitch propeller blades of the 6800, 6900 and 7000 series. (AD/PHS/5)\n- Which blades are covered is defined by the referenced requirement documents: Hamilton Standard Service Manual 130B, or ANO 107.1.5.0.2.3. (\"Applicability: As specified in the requirement document. Document: 1. Hamilton Standard Service Manual 130B; or 2. ANO 107.1.5.0.2.3.\")\n- The inspection must be carried out before a blade is installed in an aircraft after each overhaul. (\"Compliance: Before installation in an aircraft after each overhaul.\")\n\nWho this affects\n\n- Aircraft owners/operators who use propellers with Hamilton Standard 6800, 6900 or 7000 series blades.\n- Maintenance organisations and overhaul facilities that overhaul or reinstall these blades, since they must perform the inspection prior to installation.\n- Parts suppliers and overhaul shops who must follow the referenced service manual or ANO if they carry out or certify work.\n\nWhy it matters (official purpose and practical implications)\n\n- Officially, the AD requires inspection of blade face alignment to meet the airworthiness requirements for these propeller blades. (This summary reflects the directive text: an inspection requirement tied to the specified documents.)\n- Practically, the requirement changes the maintenance workflow: before re-installing any overhauled blade in an aircraft, the responsible maintenance organisation must check face alignment using the procedures set out in the referenced documents.\n\nCosts, incentives and trade-offs (mechanisms, not judgments)\n\n- Who pays: The direct costs (labour, inspection tools, potential corrective work) will be borne by the party that performs the overhaul or installation — typically the maintenance organisation or the aircraft operator arranging the overhaul — because compliance is triggered at installation after overhaul (\"Compliance: Before installation in an aircraft after each overhaul\").\n- Compliance burden: The AD creates a recurring obligation tied to every overhaul of affected blades. The technical steps and acceptance criteria are not listed in the AD text itself but are delegated to the referenced documents, so complying requires access to and use of those documents (\"Document: Hamilton Standard Service Manual 130B; or ANO 107.1.5.0.2.3\").\n- Decision authority and discretion: The AD delegates applicability and the detailed inspection procedure to the named requirement documents. That delegation concentrates technical discretion in the authors of those documents and in the maintenance organisations that apply them (\"Applicability: As specified in the requirement document\").\n- Opportunity cost and operational impact: Each overhaul now requires this check before reinstallation, which can extend turnaround time and incur inspection/correction costs that compete with other maintenance priorities.\n- Effects on private choice and competition: Operators may change where they send blades for overhaul (to workshops that can perform the inspection and certification) or factor inspection cost into maintenance decisions. The AD does not itself set pricing or ownership rules, but it affects maintenance process choices.\n- Implementation risk: Because the AD refers to external documents for applicability and procedure, inconsistent interpretation or access to those documents could create variability in how different organisations comply.\n\nConcrete source citations\n\n- Applicability and required reference documents are stated explicitly in the directive (\"Applicability: As specified in the requirement document. Document: 1. Hamilton Standard Service Manual 130B; or 2. ANO 107.1.5.0.2.3.\").\n- The timing of compliance is explicit (\"Compliance: Before installation in an aircraft after each overhaul.\")."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive focused on a specific technical inspection for specific propeller models. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (approximately 150 words)","Only 2 substantive requirements: applicability and compliance timing","No defined terms section","No cross-references to other legislation beyond the two technical documents","Single, clear condition: inspection required before installation after overhaul","No exceptions, exemptions, or conditional logic"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** issued by Australia's Civil Aviation Safety Authority (CASA). It applies to specific aircraft propeller blades made by Hamilton Standard (models in the 6800, 6900, and 7000 series).\n\n**What it requires:**\nBefore these propeller blades can be installed in an aircraft, they must undergo an **inspection for 'blade face alignment'** — essentially checking that the blade surfaces are properly positioned and straight.\n\n**When this must happen:**\n- **Before installation** in an aircraft\n- **After each overhaul** (a major service where the propeller is completely stripped down and rebuilt)\n\n**Who must follow this:**\nAnyone involved in maintaining or installing these specific Hamilton Standard propellers — typically aircraft maintenance engineers, repair stations, and aircraft operators.\n\n**Why it matters:**\nPropeller blades that aren't properly aligned can cause dangerous vibrations, reduced performance, or even structural failure in flight. This rule ensures potentially faulty blades are caught before they go back on an aircraft.\n\n**Technical references:**\nThe inspection must follow procedures in either:\n- Hamilton Standard Service Manual 130B, or  \n- ANO 107.1.5.0.2.3 (an Airworthiness Notice Order)"}},"importantCases":[],"_links":{"self":"/api/acts/ad-phs-5-blades-6800-6900-and-7000-series-blade-face-alignment-inspection","history":"/api/acts/ad-phs-5-blades-6800-6900-and-7000-series-blade-face-alignment-inspection/history","analysis":"/api/acts/ad-phs-5-blades-6800-6900-and-7000-series-blade-face-alignment-inspection/analysis","conflicts":"/api/acts/ad-phs-5-blades-6800-6900-and-7000-series-blade-face-alignment-inspection/conflicts","importantCases":"/api/acts/ad-phs-5-blades-6800-6900-and-7000-series-blade-face-alignment-inspection/important-cases","documents":"/api/acts/ad-phs-5-blades-6800-6900-and-7000-series-blade-face-alignment-inspection/documents"}}