{"id":"F2006B04794","name":"AD/BN-2/80 - Folding Passenger Seat Rear Frame","slug":"ad-bn-2-80-folding-passenger-seat-rear-frame","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44578,"registerId":"commonwealth-F2006B04794-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-2/80 Folding Passenger Seat Rear F","sectionType":"part","heading":"AD/BN-2/80 Folding Passenger Seat Rear Frame 10/2003","content":"# AD/BN-2/80 Folding Passenger Seat Rear Frame 10/2003\n\nApplicability: All BN2, BN2A, BN2B, BN2T, BN2T-4R, and BN2T-4S series Islander aircraft. Requirement: Inspect in accordance with B-N Group Limited Service Bulletin SB 286.\n\nCompliance: Within 100 hours time in service or 100 landings after 2 October 2003, whichever occurs first. Thereafter at intervals not to exceed 100 hours time in service or 100 landings, whichever occurs first.\n\nThis Airworthiness Directive becomes effective on 2 October 2003.\n\nBackground: A report was received where, during boarding and loading of passengers onto the aircraft, the tubing on a passenger seat rear frame failed.\n\n![](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 12 August 2003\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 10 September 2003.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope: addressing a specific mechanical failure (passenger seat rear frame tubing) in a specific aircraft type. There is no evidence of scope creep; it remains a targeted safety response to a reported incident."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined term (the applicability section lists aircraft models)","No cross-references to other legislation beyond the enabling regulation (CASR 1998 subregulation 39.1(1))","Simple conditional logic: 'whichever occurs first' is the only conditional element","Single straightforward requirement with clear compliance deadline","No nested exceptions or complex procedural requirements"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Pilatus Britten‑Norman BN‑2 series Islanders to inspect rear frames of folding passenger seats per Manufacturer Service Bulletin SB 286. It responds to a seat‑frame tube failure during boarding and aims to prevent passenger/crew injury. Initial inspection was mandated by 2 October 2003 and then repeated every 100 flight hours or 100 landings (whichever occurs first)."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD's scope aligns with its stated purpose: it requires inspections for all listed BN‑2 variants to address a reported seat frame tubing failure. It does not broaden applicability or add requirements beyond recurring inspections per SB 286 and the stated compliance timing (Applicability, Requirement, Compliance)."},"complexity_factors":["Narrow technical focus on a single component (folding passenger seat rear frame) — limited systemic complexity (Background, Requirement).","Mandates compliance by reference to an external document (B‑N Group Service Bulletin SB 286) — requires access and interpretation of that SB (Requirement).","Dual compliance metric (100 hours time in service OR 100 landings) — operators must track either or both metrics and use the earlier trigger (Compliance).","Recurring inspection interval — imposes ongoing operational and maintenance burden rather than a one‑off fix (Compliance).","Applicability across multiple BN‑2 variants (BN2, BN2A, BN2B, BN2T, BN2T‑4R, BN2T‑4S) — broadens affected operator base (Applicability).","Clear regulatory authority delegated to CASA (subreg 39.1(1)) — enforcement discretion is administratively located (preamble/signature).","No corrective action details in the AD text itself — reliance on the service bulletin for remedial steps increases procedural dependence and possible variation in interpretation (Requirement)."],"plain_english_summary":"This Airworthiness Directive orders operators of Pilatus Britten‑Norman BN‑2 Islander series aircraft to inspect the folding passenger seat rear frame in line with B‑N Group Service Bulletin SB 286. The CASA delegate issued the AD under CASR subreg 39.1(1); inspections are required within 100 hours time‑in‑service or 100 landings from 2 October 2003 and then at the same recurring interval. The measure responds to a reported tubing failure during boarding."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bn-2-80-folding-passenger-seat-rear-frame","history":"/api/acts/ad-bn-2-80-folding-passenger-seat-rear-frame/history","analysis":"/api/acts/ad-bn-2-80-folding-passenger-seat-rear-frame/analysis","conflicts":"/api/acts/ad-bn-2-80-folding-passenger-seat-rear-frame/conflicts","importantCases":"/api/acts/ad-bn-2-80-folding-passenger-seat-rear-frame/important-cases","documents":"/api/acts/ad-bn-2-80-folding-passenger-seat-rear-frame/documents"}}