{"id":"F2006B02587","name":"AD/B-2/16 - Centrifugal Clutch - Inspection Cockpit Placard - Installation","slug":"ad-b-2-16-centrifugal-clutch-inspection-cockpit-placard-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41843,"registerId":"commonwealth-F2006B02587-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B-2/16 - Centrifugal Clutch - Inspection Cockpit Placard - Installation","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)  Brantly B-2 Series Helicopters\n\n \n\nAD/B-2/16 Centrifugal Clutch - Inspection Cockpit\n\nPlacard - Installation\n\n\n7/61\n\n \n\nApplicability: All model B-2. Document:  1. Brantly SB No. 6; or\n\n2. FAA AD 61-4-1.\n\n \n\nCompliance: Forthwith.\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":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive, as written, does not broaden or narrow its stated applicability beyond its title and explicit text: it applies to all model B-2 helicopters and requires immediate installation of an inspection cockpit placard. No additional scope-expanding measures or exemptions are included in the text supplied; technical content is delegated to the referenced Brantly SB No. 6 or FAA AD 61-4-1."},"complexity_factors":["Short text and narrow subject matter (single placard installation requirement).","Applicability limited to a single aircraft model class (all Brantly B-2).","Key technical details are delegated to external documents (Brantly SB No.6 or FAA AD 61-4-1), requiring operators to obtain and consult those sources.","\"Forthwith\" timing is immediate but not numerically specified, creating minor operational ambiguity.","Enforcement and formal obligation are clear (CASA AD), but the AD itself lacks installation specifications."],"plain_english_summary":"The directive mandates immediate installation of a cockpit inspection placard about the centrifugal clutch on all Brantly B‑2 helicopters, with technical details to be taken from Brantly Service Bulletin No. 6 or FAA AD 61‑4‑1. It affects B‑2 owners/operators (who bear the cost and work) and aims to ensure a visible, mandatory prompt to carry out clutch inspections."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-purpose safety directive. It has not expanded beyond its original intent of mandating a specific cockpit warning placard for clutch inspection."},"complexity_factors":["Extremely short document — approximately 150 words total","Only one substantive requirement (install a placard)","No defined terms section","No cross-references to other legislation beyond two external technical documents","Simple unconditional language — no exceptions, nested conditions, or alternative compliance paths","Single applicability criterion (model B-2)"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific helicopters.\n\n**What it does:** It requires the immediate installation of a cockpit placard (a warning sign) in all Brantly B-2 series helicopters. This placard relates to inspecting the centrifugal clutch — a mechanical component that engages and disengages the engine from the rotor system.\n\n**Who it affects:** Anyone who owns, operates, or maintains Brantly B-2 model helicopters in Australia.\n\n**Why it matters:** The centrifugal clutch is critical for safe helicopter operation. If it fails, the rotor may not engage properly or could disengage unexpectedly — potentially causing loss of control. The placard serves as a visible reminder to pilots and mechanics to perform required inspections, reducing the risk of mechanical failure.\n\n**Key requirements:**\n- **Compliance deadline:** \"Forthwith\" — meaning immediately, without delay\n- **Technical basis:** Follow either Brantly Service Bulletin No. 6 or the equivalent US Federal Aviation Administration (FAA) directive (AD 61-4-1)\n- **Scope:** Applies to every B-2 model helicopter, regardless of individual aircraft history"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b-2-16-centrifugal-clutch-inspection-cockpit-placard-installation","history":"/api/acts/ad-b-2-16-centrifugal-clutch-inspection-cockpit-placard-installation/history","analysis":"/api/acts/ad-b-2-16-centrifugal-clutch-inspection-cockpit-placard-installation/analysis","conflicts":"/api/acts/ad-b-2-16-centrifugal-clutch-inspection-cockpit-placard-installation/conflicts","importantCases":"/api/acts/ad-b-2-16-centrifugal-clutch-inspection-cockpit-placard-installation/important-cases","documents":"/api/acts/ad-b-2-16-centrifugal-clutch-inspection-cockpit-placard-installation/documents"}}