{"id":"F2006B04356","name":"AD/BELL 205/13 Amdt 1 - Float Installation - Inspection and Modification","slug":"ad-bell-205-13-amdt-1-float-installation-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44171,"registerId":"commonwealth-F2006B04356-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 205/13 Amdt 1 - Float Installation - Inspection and 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 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Bell Helicopter Textron 205 Series Helicopters\n\n \n\nAD/BELL 205/13\n\nAmdt 1\n\n\nFloat Installation - Inspection and Modification 5/76\n\n \n\nApplicability: All models incorporating Float Kit installation P/N 205-706-050-1 and 205-706-050- 7.\n\n \n\nDocument: Bell SB No. 205-76-2. Par B only. Compliance: Before 1 May 1976.\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":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive focused specifically on float kit modifications for one helicopter series. It has not expanded beyond its original narrow technical scope."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 2 specific part numbers in applicability","Single reference to external technical document (Bell Service Bulletin)","No defined terms section","No cross-references to other legislation","Simple unconditional directive with clear compliance deadline","No exceptions or conditional logic"],"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) that requires specific action on aircraft.\n\n**What it does:** It orders owners and operators of certain **Bell 205 series helicopters** to inspect and modify their **emergency float kits** (the inflatable floats that deploy if a helicopter lands on water). The directive applies to helicopters fitted with specific float kit part numbers: **205-706-050-1** and **205-706-050-7**.\n\n**Who must comply:** Anyone operating a Bell 205 helicopter with those specific float kits installed.\n\n**What action is required:** Operators must follow **Part B only** of **Bell Service Bulletin 205-76-2** — a technical instruction from the manufacturer detailing the inspection and modification procedures.\n\n**Deadline:** The work had to be completed **before 1 May 1976**.\n\n**Why it matters:** Float kits are critical safety equipment for helicopters operating over water. This directive addresses a specific safety concern with these particular float installations to prevent potential failure during emergency water landings."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"This entry is labelled \"Amdt 1\", indicating it amends a prior directive. The text supplied does not include the original AD/BELL 205/13 wording or a description of what was changed by Amendment 1. What is explicit in this instrument is the applicability (Float Kit P/Ns 205-706-050-1 and 205-706-050-7), the single prescriptive reference to Bell SB No. 205-76-2 Part B (Document), and the compliance deadline (Before 1 May 1976) (Applicability; Document; Compliance). The source does not identify which element(s) were altered by the amendment, so the exact nature of the scope change cannot be determined from the supplied text alone."},"complexity_factors":["Narrow, specific applicability: only Bell 205 models with Float Kit P/N 205-706-050-1 or -7 (Applicability).","Single prescriptive compliance action: reference to one service bulletin, Part B only (Document).","Fixed, single compliance deadline (Before 1 May 1976) reduces conditionality (Compliance).","No multiple compliance options, no staged requirements or recurring intervals in the text.","Limited text and few cross-references reduce interpretive ambiguity but shift detail to external service bulletin."],"plain_english_summary":"- What the instrument does, mechanically:\n  - This is Airworthiness Directive AD/BELL 205/13 Amendment 1. It requires that the inspection and modification steps set out in Bell Service Bulletin No. 205-76-2, Part B, be carried out on the affected helicopters. (Document: Bell SB No. 205-76-2. Par B only.)\n  - The work specified in that service bulletin must be completed by the compliance date given: before 1 May 1976. (Compliance: Before 1 May 1976.)\n\n- Who it applies to:\n  - All Bell 205 series helicopters that have a Float Kit installation with part number 205-706-050-1 or 205-706-050-7. Operators, owners and the maintenance organisations responsible for those airframes are the parties required to act. (Applicability: All models incorporating Float Kit installation P/N 205-706-050-1 and 205-706-050-7.)\n\n- Why it matters and how it works in practice:\n  - The directive mandates a specific inspection and modification sequence by reference to a manufacturer service bulletin (Document: Bell SB No. 205-76-2. Par B only). That makes the regulator’s requirement prescriptive: the regulator requires the steps in that bulletin to be completed rather than leaving the remedy open-ended.\n  - Who pays: the practical cost of inspections, parts and labour falls on the operators/owners and the maintenance providers they engage (Applicability; Document; Compliance). The regulator enforces the requirement by the compliance date (Compliance: Before 1 May 1976).\n  - Incentives and behaviour changes: operators must schedule the specified work before the deadline. That creates demand for maintenance capacity and parts for the particular float-kit part numbers cited (Applicability). Operators face a trade-off between incurring the cost and downtime now, or risking non-compliance with the directive.\n  - Compliance burden and implementation risk: the requirement is time-bound and mandatory (Compliance). The burden consists of carrying out the inspection and modification steps in the referenced service bulletin; the directive itself does not describe those steps in this text (Document). Implementation risk for operators includes aircraft downtime, the cost of labour and any parts dictated by the service bulletin, and the administrative task of proving compliance to the regulator by the specified date.\n  - Bureaucratic discretion: the AD is tightly framed by reference to a single manufacturer service bulletin (Document). That reduces discretion for operators about how to comply but gives the regulator a clear, verifiable action to enforce (Compliance).\n  - Effects on private choice and market activity: the AD constrains operators’ choice by requiring a specific remedial action. It may concentrate demand for maintenance and parts related to the cited float-kit P/Ns on the suppliers and facilities able to carry out the service bulletin work (Applicability; Document).\n\n- Trade-offs, opportunity costs and distribution of effects:\n  - The directive creates concentrated costs for the subset of Bell 205 operators who have the listed float kits (Applicability). Benefits from completing the specified inspection/modification are realised by those same operators and by anyone who uses the aircraft thereafter; the text does not quantify benefits.\n  - Opportunity costs include lost aircraft availability while work is performed and resources diverted from other maintenance tasks. The AD text does not set out any alternative compliance methods or exemptions; it simply references the service bulletin and a compliance date (Document; Compliance).\n\n- What the source does not state here:\n  - The AD text provided does not include the detailed content of Bell SB No. 205-76-2 Part B, it does not state the specific defect or safety event that prompted the directive, and it does not describe penalties or enforcement mechanisms beyond the compliance deadline. Those details would be found in the referenced service bulletin or accompanying regulatory records (Document)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-205-13-amdt-1-float-installation-inspection-and-modification","history":"/api/acts/ad-bell-205-13-amdt-1-float-installation-inspection-and-modification/history","analysis":"/api/acts/ad-bell-205-13-amdt-1-float-installation-inspection-and-modification/analysis","conflicts":"/api/acts/ad-bell-205-13-amdt-1-float-installation-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-bell-205-13-amdt-1-float-installation-inspection-and-modification/important-cases","documents":"/api/acts/ad-bell-205-13-amdt-1-float-installation-inspection-and-modification/documents"}}