{"id":"F2006B04490","name":"AD/BELL 206/34 Amdt 1 - Strap P/N 206-031-200-23 and -24 - Replacement","slug":"ad-bell-206-34-amdt-1-strap-p-n-206-031-200-23-and-24-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114184,"registerId":"commonwealth-F2006B04490-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 206/34 Amdt 1 - Strap P/N 206-031-200-23 and -24 - 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)  Bell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters\n\n \n\nAD/BELL 206/34\n\nAmdt 1\n\n\nStrap P/N 206-031-200-23\n\nand -24 - Replacement\n\n\n4/75\n\n \n\nApplicability: All models 206A, 206B and AB206 with S/Nos. detailed in requirement documents. Document:               Bell SB No. 206-01-74-2, or Agusta SB No. BT206-91.\n\nCompliance: Within 1200 hours time in service after 30 April 1975. Background: AD/Agusta 206/50 equivalent.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, targeted safety directive focused on a specific mechanical component in specific helicopter models. There is no indication of scope creep; it maintains its original limited purpose of mandating replacement of defective straps."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 2 defined part numbers (P/N 206-031-200-23 and -24)","Single, clear compliance action (replacement of specified straps)","Simple time-based compliance trigger (1200 hours time in service after fixed date)","No nested exceptions or conditional logic","Limited cross-references (only 2 service bulletins and 1 equivalent AD)","Narrow applicability (specific helicopter models and serial numbers)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners and operators of specific Bell and Agusta-Bell helicopter models to replace certain safety straps.\n\n**What it does:**\n- **Mandates replacement** of two specific part numbers: strap P/N 206-031-200-23 and P/N 206-031-200-24\n- These straps are used in Bell 206A, 206B, and Agusta Bell AB206 helicopters\n\n**Who it affects:**\n- Owners and operators of Bell 206A, 206B, and Agusta Bell AB206 helicopters with specific serial numbers listed in the referenced service bulletins\n\n**Why it matters:**\n- Airworthiness Directives are **legally enforceable safety orders**. Non-compliance can ground an aircraft or result in penalties.\n- This directive addresses a safety defect discovered in these specific strap components. The \"Background\" note indicates this Australian directive is equivalent to a previous Agusta directive (AD/Agusta 206/50), suggesting coordinated international action on this safety issue.\n\n**Compliance deadline:**\n- The replacement must be completed within **1,200 hours of flight time** after 30 April 1975.\n\n**Technical references:**\n- Operators must follow the procedures in Bell Service Bulletin No. 206-01-74-2 or Agusta Service Bulletin No. BT206-91 to complete the replacement."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The instrument is labelled as Amendment 1 (Amdt 1), indicating it modifies a prior AD. The text provided does not state the precise nature of the change from the original AD or what the original scope was; it only sets out the current applicability, referenced service bulletins, compliance window, and notes an equivalent Agusta AD as background. (Title; Applicability; Document; Compliance; Background)"},"complexity_factors":["Narrow technical scope limited to two part numbers and specific helicopter models (reduces complexity). (Applicability; Title)","Mandatory compliance with a single, clear time-in-service limit (1,200 hours after a specific date) simplifies scheduling but requires accurate tracking of TIS. (Compliance)","Cross-reference to external service bulletins and a serial-number list increases procedural steps and requires operators to consult other documents. (Document; Applicability)","Limited textual detail about the root cause, parts availability, or corrective procedure increases operational uncertainty despite the AD’s narrow scope. (Background; Document)","Amendment status (Amdt 1) indicates a prior version exists, which may require comparing versions for full historical context. (Title)"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Bell/Agusta 206A/206B/AB206 helicopters to remove and replace specified tail/strap parts (P/Ns 206-031-200-23/24) within 1,200 hours TIS after 30 April 1975, using Bell SB 206-01-74-2 or Agusta SB BT206-91. \n\nCASA enforces the requirement; operators bear parts, labour and downtime costs and must schedule the work with a maintenance organisation."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-206-34-amdt-1-strap-p-n-206-031-200-23-and-24-replacement","history":"/api/acts/ad-bell-206-34-amdt-1-strap-p-n-206-031-200-23-and-24-replacement/history","analysis":"/api/acts/ad-bell-206-34-amdt-1-strap-p-n-206-031-200-23-and-24-replacement/analysis","conflicts":"/api/acts/ad-bell-206-34-amdt-1-strap-p-n-206-031-200-23-and-24-replacement/conflicts","importantCases":"/api/acts/ad-bell-206-34-amdt-1-strap-p-n-206-031-200-23-and-24-replacement/important-cases","documents":"/api/acts/ad-bell-206-34-amdt-1-strap-p-n-206-031-200-23-and-24-replacement/documents"}}