{"id":"F2006B04795","name":"AD/BN-2/81 - Control Cable Swivel Unit Mounting Bracket","slug":"ad-bn-2-81-control-cable-swivel-unit-mounting-bracket","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44579,"registerId":"commonwealth-F2006B04795-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nPilatus Britten-Norman BN-2 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/BN-2/81 Control Cable Swivel Unit Mou","sectionType":"part","heading":"AD/BN-2/81 Control Cable Swivel Unit Mounting Bracket 1/2004","content":"# AD/BN-2/81 Control Cable Swivel Unit Mounting Bracket 1/2004\n\nApplicability: All BN2 Series Islander aircraft.\n\nRequirement: Action in accordance with Pilatus Britten-Norman Mandatory Service Bulletin BN- 2/SB.218 Issue 1, dated 26 May 1995.\n\nNote: UK CAA AD 009-05-95 refers.\n\nCompliance: Unless already accomplished, at the next 100 hour inspection after 22 January 2004.\n\nThis Airworthiness Directive becomes effective on 22 January 2004.\n\nBackground: Reports were received of the engine/propeller control cable swivel unit mounting bracket failing due to cracking of the bracket in the area of the corner radii. This bracket is located behind the instrument panel console.\n\nThis Directive is issued following a review of current UK CAA Airworthiness Directives applicable to BN2 Series Islanders.\n\n![](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 5 December 2003\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 24 December 2003.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope: addressing a specific mechanical defect in a specific aircraft type. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (approximately 250 words)","Only 1 defined term implicitly referenced (the service bulletin)","Single, clear applicability clause ('All BN2 Series Islander aircraft')","Single requirement referencing external technical document","Simple compliance deadline (next 100-hour inspection after effective date)","No nested exceptions or conditional logic","No cross-references to other legislation beyond the enabling regulation (CASR 1998 subreg 39.1(1))"],"plain_english_summary":"This AD requires owners/operators of Pilatus Britten‑Norman BN‑2 Series Islander aircraft to inspect and, if necessary, repair the engine/propeller control cable swivel unit mounting bracket per Pilatus BN‑2/SB.218 Issue 1 (26 May 1995). Compliance is due by the next 100‑hour inspection after 22 Jan 2004. A cracked bracket can cause loss of engine/propeller control; the action follows reported failures and a UK AD."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD applies to all BN2 Series Islanders and adopts corrective action from Pilatus service bulletin; it was issued following review of the UK CAA ADs applicable to BN2 aircraft. The directive mirrors the UK AD's scope and does not expand applicability beyond the BN2 Series as stated in the instrument (Applicability; Background; Requirement)."},"complexity_factors":["External technical dependency: mandates action 'in accordance with Pilatus Britten‑Norman Mandatory Service Bulletin BN‑2/SB.218 Issue 1, dated 26 May 1995' (Requirement) — the AD does not itself provide technical steps.","Single, fleet‑wide applicability: applies to 'All BN2 Series Islander aircraft' (Applicability), so compliance logistics affect every operator of that model.","Timing tied to maintenance schedule: compliance set to 'at the next 100 hour inspection after 22 January 2004' (Compliance), creating a predictable but mandatory window.","Enforcement and legal effect: issued by CASA delegate under CASR subregulation 39.1(1) and gazetted (opening text; signature/Gazette notice), giving it regulatory force.","Cost and operational burden concentrated on operators: inspections and any repairs are operator expenses (implied by Requirement/Compliance), with possible downtime during maintenance.","Cross‑jurisdictional alignment: issued 'following a review of current UK CAA Airworthiness Directives' (Background), which may constrain CASA discretion to diverge from the UK action."],"plain_english_summary":"Requires BN2 Islander operators to inspect and, if necessary, repair or replace the engine/propeller control‑cable swivel‑unit mounting bracket in accordance with Pilatus Britten‑Norman Mandatory Service Bulletin BN‑2/SB.218 (26 May 1995). Compliance is at the next 100‑hour inspection after 22 January 2004.\n\nApplies to all BN2 Series aircraft. CASA issued the AD after reports of bracket cracking behind the instrument panel; operators pay for inspections and any corrective work, and must follow the service‑bulletin instructions the regulator adopts."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bn-2-81-control-cable-swivel-unit-mounting-bracket","history":"/api/acts/ad-bn-2-81-control-cable-swivel-unit-mounting-bracket/history","analysis":"/api/acts/ad-bn-2-81-control-cable-swivel-unit-mounting-bracket/analysis","conflicts":"/api/acts/ad-bn-2-81-control-cable-swivel-unit-mounting-bracket/conflicts","importantCases":"/api/acts/ad-bn-2-81-control-cable-swivel-unit-mounting-bracket/important-cases","documents":"/api/acts/ad-bn-2-81-control-cable-swivel-unit-mounting-bracket/documents"}}