{"id":"F2006B02584","name":"AD/B-2/13 - Tail Rotor Guard - Inspection","slug":"ad-b-2-13-tail-rotor-guard-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41840,"registerId":"commonwealth-F2006B02584-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B-2/13 - Tail Rotor Guard - 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 - 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-2/13 Tail Rotor Guard - Inspection 3/61\n\nApplicability: All model B-2. Document: Brantly SL No. 22.\n\nCompliance: At each daily or overnight inspection.\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\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive focused on a specific safety inspection for a specific aircraft type. It has not expanded beyond its original purpose of ensuring tail rotor guard integrity."},"complexity_factors":["Extremely short document (under 100 words of substantive content)","No defined terms section","No cross-references to other legislation beyond the enabling regulation (CAR 1998 Part 39)","Single, unambiguous compliance requirement","No conditional logic, exceptions, or nested provisions","Straightforward applicability (all model B-2 helicopters)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** issued by Australia's Civil Aviation Safety Authority (CASA). It applies to all **Brantly B-2 series helicopters**.\n\n**What it requires:**\n- Helicopter owners and operators must **inspect the tail rotor guard** (a protective cage or shield around the tail rotor) during **every daily or overnight inspection**.\n\n**Why it matters:**\n- The tail rotor is critical for helicopter control. Damage to its guard could lead to rotor failure or loss of control. This directive ensures potential problems are caught early through routine checks.\n\n**Who must comply:**\n- Anyone operating or maintaining a Brantly B-2 helicopter in Australia.\n\n**Key details:**\n- **Document reference:** Brantly Service Letter No. 22 (the manufacturer's official guidance)\n- **Compliance timing:** At each daily or overnight inspection (meaning it's now part of regular pre-flight or end-of-day maintenance routines)"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument as presented applies to all Brantly B-2 models and requires an inspection at each daily or overnight inspection, referencing Brantly SL No. 22. The text gives no indication that its scope has been altered from an earlier or original form; it sets a limited, focused obligation without expanding affected types or introducing new action beyond the recurring inspection."},"complexity_factors":["Very short, narrowly targeted instrument with a single clear operative requirement (inspect tail rotor guard).","Relies on an external technical document (Brantly SL No. 22) for inspection method/standards, adding dependency and potential implementation complexity.","Uses routine maintenance terminology (\"daily or overnight inspection\") that requires operators to fit the requirement into existing workflows but does not prescribe detailed procedures or recordkeeping.","Operative rule is simple, but enforcement and corrective-action detail are left to the broader regulatory regime (Part 39 / CASA), requiring cross-reference for full compliance obligations."],"plain_english_summary":"This airworthiness directive requires operators of all Brantly B‑2 helicopters to inspect the tail rotor guard at every daily or overnight inspection, using the procedure set out in Brantly Service Letter No. 22.  \n\nOperators/owners are responsible for carrying out and funding inspections and any corrective work, and must incorporate this recurring check into routine maintenance, with accompanying operational and administrative impact."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b-2-13-tail-rotor-guard-inspection","history":"/api/acts/ad-b-2-13-tail-rotor-guard-inspection/history","analysis":"/api/acts/ad-b-2-13-tail-rotor-guard-inspection/analysis","conflicts":"/api/acts/ad-b-2-13-tail-rotor-guard-inspection/conflicts","importantCases":"/api/acts/ad-b-2-13-tail-rotor-guard-inspection/important-cases","documents":"/api/acts/ad-b-2-13-tail-rotor-guard-inspection/documents"}}