{"id":"F2006B04772","name":"AD/BN-2/60 - Generator Inspection","slug":"ad-bn-2-60-generator-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44543,"registerId":"commonwealth-F2006B04772-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BN-2/60 - Generator Inspection","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nPilatus Britten-Norman BN-2 Series Aeroplanes\n\nAD/BN-2/60 Generator Inspection 4/97\n\nApplicability: All models of Islander aircraft with Mod NB/M/256, 50A generator system installed. Requirement: Inspect the generating system in accordance with Pilatus Britten-Norman Service\n\nBulletin BN-2/SB.229, dated 17 October 1996.\n\nNote: This Service Bulletin has been classified as Mandatory by the CAA (UK).\n\nCompliance: Prior to 27 May 1997.\n\nThis Airworthiness Directive becomes effective on 27 March 1997.\n\nBackground: Britten-Norman advises that some operators have installed 70A generators on aircraft fitted with 50A systems. A 70A generator can cause damage to the 50A system and render the system unserviceable. The action mandated by this Directive will ensure incorrectly fitted 70A generators are identified and replaced.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue safety directive focused specifically on generator compatibility for one aircraft type. It has not expanded beyond its original technical purpose."},"complexity_factors":["Very short document (under 200 words)","Only one substantive requirement (inspect per referenced service bulletin)","Single applicability criterion (specific aircraft model with specific modification)","No defined terms section","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Simple conditional logic: if aircraft has Mod NB/M/256, then inspection required","Clear compliance date with no exceptions or extensions mentioned"],"plain_english_summary":"This is a **safety order** (called an \"Airworthiness Directive\") issued by Australia's aviation safety regulator for a specific type of small aircraft—the **Pilatus Britten-Norman BN-2 Islander**.\n\n**What it does:**\nIt requires owners and operators of these aircraft to **inspect their electrical generator systems** to check if anyone has accidentally installed a 70-amp generator where a 50-amp generator should be.\n\n**Why this matters:**\nPutting a more powerful 70A generator into a system designed for 50A can **damage the aircraft's electrical system** and potentially cause it to fail. This inspection ensures the wrong part gets caught and replaced before it causes problems.\n\n**Who must comply:**\nAnyone operating an Islander aircraft that has the specific 50A generator system identified as \"Mod NB/M/256.\"\n\n**What they must do:**\nFollow the inspection steps laid out in a technical document called **Service Bulletin BN-2/SB.229** (dated 17 October 1996). The UK aviation authority has already marked this bulletin as mandatory, and Australia is adopting the same requirement.\n\n**Deadline:**\nThe inspection must be completed **before 27 May 1997**."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The Directive's scope is consistent with its stated purpose in the Background: it applies to all Islander aircraft fitted with Mod NB/M/256 (the 50A generator system) and mandates inspection per the specified Service Bulletin to identify and replace any incorrectly fitted 70A generators (Applicability; Requirement; Background). There is no text in the supplied instrument that expands or narrows that scope beyond those elements."},"complexity_factors":["Narrow technical scope limited to Islander aircraft with Mod NB/M/256 (Applicability)","Single, specific action required: inspect per a named Service Bulletin (Requirement)","Fixed, short compliance window (effective 27 March 1997; complete by 27 May 1997)","Dependence on an external technical document (Pilatus Britten-Norman Service Bulletin BN-2/SB.229) for procedural details (Requirement)","No broad regulatory exemptions, alternative compliance paths, or procedural complexity set out in the text"],"plain_english_summary":"Operators of Pilatus Britten‑Norman Islander aircraft fitted with Mod NB/M/256 (the 50A generator system) must inspect the electrical generating system following Service Bulletin BN‑2/SB.229 to confirm a 70A generator has not been incorrectly fitted. \n\nInspections must be completed by 27 May 1997; operators bear costs for any replacements or repairs."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bn-2-60-generator-inspection","history":"/api/acts/ad-bn-2-60-generator-inspection/history","analysis":"/api/acts/ad-bn-2-60-generator-inspection/analysis","conflicts":"/api/acts/ad-bn-2-60-generator-inspection/conflicts","importantCases":"/api/acts/ad-bn-2-60-generator-inspection/important-cases","documents":"/api/acts/ad-bn-2-60-generator-inspection/documents"}}