{"id":"F2006B04779","name":"AD/BN-2/67 Amdt 1 - Control Column Sliding Tube","slug":"ad-bn-2-67-amdt-1-control-column-sliding-tube","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44555,"registerId":"commonwealth-F2006B04779-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BN-2/67 Amdt 1 - Control Column Sliding Tube","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)  \n\nAIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BN-2/67 and issues the following AD under subregulation 39.1 (1) of CAR 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\nPilatus Britten Norman BN-2 Series Aeroplanes\n\nAD/BN-2/67\n\nAmdt 1\n\n  \nControl Column Sliding Tube 8/2002\n\nApplicability: All Model BN2, BN2A, BN2B, and BN2T aircraft.\n\nRequirement: Action in accordance with B-N Group Ltd Mandatory Service Bulletin BN2/SB.243 Issue 2.\n\nCompliance: Before 8 September 2002; thereafter at intervals not to exceed 500 hours time in service, if no wear is found. If wear is found refer to the Requirement document.\n\nThis Amendment becomes effective on 8 August 2002.\n\nBackground: The manufacturer received reports of wear in the control column sliding tube. This wear could lead to cracking of the tube.\n\nAmendment 1 is issued in response to a revision of the Requirement document, which introduces changes to Accomplishment Instructions procedures.\n\nThe original issue of this Airworthiness Directive became effective on 17 June 1999.\n\n![](image.002.jpeg)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 28 June 2002\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 17 July 2002.\n\n  \nPage 1 of 1","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a straightforward amendment to an existing Airworthiness Directive. The amendment simply updates the referenced service bulletin to Issue 2 with revised accomplishment instructions. The scope remains limited to the specific safety issue (control column sliding tube wear) for the specific aircraft series, consistent with the original 1999 directive."},"complexity_factors":["Very short document (1 page)","Only 4 defined aircraft models in applicability section","Single requirement referencing external document (service bulletin)","Simple compliance structure with clear deadline and recurring interval","No nested exceptions or conditional logic beyond basic 'if wear found' branch","No cross-references to other legislation beyond basic CAR 1998 citation"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators/maintainers of Pilatus Britten Norman BN-2 series aircraft in Australia to inspect the control‑column sliding tube for wear and cracking. The first inspection is required before 8 September 2002, with repeats every 500 flight hours if no wear is found; detected wear must be repaired per the manufacturer's service bulletin.\n\nIt matters because tube wear can lead to cracking and potential loss of control."},"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"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Amendment 1 updates the referenced Service Bulletin's accomplishment procedures (Requirement) but does not alter the AD's applicability (all BN‑2 variants) or the stated inspection interval (Compliance). The AD revokes the prior AD and replaces it with the revised Requirement document; no expansion of affected aircraft or new obligations beyond following the revised Bulletin is introduced (Background; Requirement; Compliance)."},"complexity_factors":["Single, focused safety issue (control column sliding tube wear) with clear applicability to all BN‑2 variants (Applicability).","Primary action is to follow an externally referenced Mandatory Service Bulletin rather than new technical text in the AD (Requirement relies on BN2/SB.243 Issue 2).","Simple compliance timing: initial deadline and a fixed repetitive interval (Compliance: before 8 Sept 2002; thereafter ≤500 hours if no wear found).","Decision authority and legal force rest with CASA’s delegate, creating administrative formality but little operational discretion (signature and delegate notice).","If wear is found, AD delegates corrective detail back to the Service Bulletin, creating dependency on that document for remedial scope and cost."],"plain_english_summary":"This AD requires owners/operators of Pilatus Britten Norman BN‑2 series (BN2, BN2A, BN2B, BN2T) to inspect the control column sliding tube following B‑N Group Mandatory Service Bulletin BN2/SB.243 Issue 2, with initial compliance before 8 September 2002 and repeat inspections at intervals not to exceed 500 hours if no wear is found. CASA's delegate adopted the measure after manufacturer reports of wear that could cause cracking. Owners/operators bear inspection and repair costs; corrective work must follow the Service Bulletin (Requirement; Compliance; Background)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bn-2-67-amdt-1-control-column-sliding-tube","history":"/api/acts/ad-bn-2-67-amdt-1-control-column-sliding-tube/history","analysis":"/api/acts/ad-bn-2-67-amdt-1-control-column-sliding-tube/analysis","conflicts":"/api/acts/ad-bn-2-67-amdt-1-control-column-sliding-tube/conflicts","importantCases":"/api/acts/ad-bn-2-67-amdt-1-control-column-sliding-tube/important-cases","documents":"/api/acts/ad-bn-2-67-amdt-1-control-column-sliding-tube/documents"}}