{"id":"F2006B06580","name":"AD/RES/13 Amdt 1 - Teleflex Morse Inertia Reels - Modification","slug":"ad-res-13-amdt-1-teleflex-morse-inertia-reels-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48370,"registerId":"commonwealth-F2006B06580-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/RES/13 Amdt 1 - Teleflex Morse Inertia Reels - Modification","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)  Restraint Equipment\n\n \n\nAD/RES/13\n\nAmdt 1\n\n\nTeleflex Morse Inertia Reels - Modification 1/84\n\n \n\nApplicability: All Teleflex morse inertia reel assemblies P/N. D73766. and D73766/001. Document:               Teleflex Morse S.B. 25-00-185429 Issue 2.\n\nNote: CAA AD No. 011-10-82 refers.\n\n \n\nCompliance: Before 30 September 1984.\n\n \n\nBackground: Cases have occurred of spring failure, leading to failure of the rewind function.\n\n \n\nThis Directive is raised in issue to incorporate the latest issue the requirement document which extends effectivity and amends accomplishment instructions.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is Amendment 1 to an existing directive. The amendment updates the reference document to a newer issue that expands which aircraft are covered ('extends effectivity') and improves the modification instructions. This is a routine technical update staying within the original safety purpose — fixing faulty inertia reels. The scope has not expanded beyond the original safety concern."},"complexity_factors":["Single, specific applicability (two part numbers only)","No defined terms section — uses plain manufacturer terminology","Single compliance action with fixed deadline","No conditional logic or exceptions","Short document (approximately 150 words of substantive content)","Single cross-reference to predecessor directive (CAA AD No. 011-10-82) and manufacturer document","Straightforward cause-and-effect: spring failure → rewind failure → mandatory modification"],"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). Think of it like a recall notice for aircraft parts, but legally binding.\n\n**What it does:** It requires owners and operators of aircraft to modify specific **inertia reel assemblies** (seatbelt retractor mechanisms that automatically wind up slack) made by Teleflex Morse. The affected part numbers are **D73766** and **D73766/001**.\n\n**The safety problem:** The springs in these reels can fail, causing the automatic rewind function to stop working. This means seatbelts might not retract properly, potentially leaving them loose during turbulence or emergency situations.\n\n**What must be done:** Aircraft operators must follow the manufacturer's Service Bulletin (S.B. 25-00-185429 Issue 2) to modify these reels **before 30 September 1984**.\n\n**Why it matters:** This directive prevents seatbelt failures that could increase injury risk during rough flight or accidents. Compliance is mandatory — flying with unmodified reels would violate aviation safety law.\n\n**Key details:**\n- **Who's affected:** Anyone operating aircraft with these specific Teleflex Morse inertia reels\n- **Deadline:** 30 September 1984 (historical — this AD is long past its compliance date)\n- **Action required:** Physical modification per manufacturer's instructions, not just inspection"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The directive explicitly states it was issued to incorporate the latest issue of the requirement document, which “extends effectivity and amends accomplishment instructions.” This indicates the scope of affected units and/or the required method of compliance was broadened or altered compared with the earlier issue referenced (CAA AD No. 011-10-82). (This Directive, Note)"},"complexity_factors":["Narrow technical scope: applies only to two specific part numbers (D73766, D73766/001). (Applicability)","Clear compliance deadline: single fixed date (30 September 1984). (Compliance)","Work required is defined by an external document (Teleflex Morse S.B. 25-00-185429 Issue 2), introducing a dependency on a technical service bulletin. (Document)","Regulator reliance on manufacturer's instructions increases implementation complexity for maintenance providers (must follow SB precisely). (Document, This Directive)","Potential operational complexity for owners due to scheduling downtime and sourcing parts/labour, but administratively straightforward. (Compliance)"],"plain_english_summary":"This directive mandates modification of Teleflex Morse inertia reel assemblies (P/N D73766 and D73766/001) per Service Bulletin 25-00-185429 Issue 2 by 30 September 1984. Aircraft owners/operators with the affected reels must arrange and pay for the work (parts, labour, downtime), which maintenance providers will perform.\n\nThe change aims to fix spring-related rewind failures; compliance reduces mechanical risk but creates short‑term demand for parts and labour and depends on exact adherence to the manufacturer’s instructions."}},"importantCases":[],"_links":{"self":"/api/acts/ad-res-13-amdt-1-teleflex-morse-inertia-reels-modification","history":"/api/acts/ad-res-13-amdt-1-teleflex-morse-inertia-reels-modification/history","analysis":"/api/acts/ad-res-13-amdt-1-teleflex-morse-inertia-reels-modification/analysis","conflicts":"/api/acts/ad-res-13-amdt-1-teleflex-morse-inertia-reels-modification/conflicts","importantCases":"/api/acts/ad-res-13-amdt-1-teleflex-morse-inertia-reels-modification/important-cases","documents":"/api/acts/ad-res-13-amdt-1-teleflex-morse-inertia-reels-modification/documents"}}