{"id":"F2006B09819","name":"AD/F28/84 - Flight Crew Seat Shoulder Harness","slug":"ad-f28-84-flight-crew-seat-shoulder-harness","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54758,"registerId":"commonwealth-F2006B09819-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.002.png)\n\n![](image.002.png)  \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 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 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.","sortOrder":0},{"sectionNumber":"AD/F28/84 Flight Crew Seat Shoulder Harn","sectionType":"part","heading":"AD/F28/84 Flight Crew Seat Shoulder Harness 3/2000","content":"# AD/F28/84 Flight Crew Seat Shoulder Harness 3/2000\n\nApplicability: All aircraft equipped with Pacific Scientific Model 0108900 series flight crew shoulder harness assemblies.\n\nRequirement: Perform a one-time inspection and functional check of the shoulder harness in accordance with Fokker Services’ SB F28/25-103.\n\nNote: RLD AD 1999-139 dated 29 October 1999 refers.\n\nCompliance: Before 23 September 2000.\n\nThis Airworthiness Directive becomes effective on 23 March 2000.\n\nBackground: There is an overseas report that a pilot’s shoulder harness pulled out of the inertia reel completely due to an incorrectly attached reel mechanism.\n\n![](image.003.png)  \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 11 February 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 23 February 2000.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"No change from the instrument's stated purpose is evident in the text: applicability is confined to the identified harness model and the sole required remedy is a one‑time inspection per the referenced service bulletin to correct the reported reel misassembly, to be completed by the specified compliance date."},"complexity_factors":["Narrow applicability: limited to Pacific Scientific Model 0108900 series flight crew shoulder harness assemblies (Applicability).","Single prescribed action: one‑time inspection and functional check only, following Fokker Services SB F28/25‑103 (Requirement).","Fixed compliance deadline: mandatory completion before 23 September 2000 (Compliance).","Legal basis and issuer: issued under CAR 1998 subreg 39.1(1) by CASA delegate — clear administrative authority (introductory paragraph; signature block).","Reference dependence: requires adherence to a specific manufacturer service bulletin, which may entail technical procedures not reproduced in the AD (Requirement).","Safety trigger documented: background cites an overseas report of reel misassembly as the unsafe condition prompting the AD (Background).","Cross-reference to related AD noted (RLD AD 1999-139), which may be relevant for operators tracking related actions (Note)."],"plain_english_summary":"Requires operators of aircraft fitted with Pacific Scientific Model 0108900-series flight‑crew shoulder harnesses to perform a one‑time inspection and functional check of the harness in accordance with Fokker Services SB F28/25‑103. The AD, issued under CAR 1998 subreg 39.1(1), responds to a reported inertia‑reel misassembly and mandates compliance before 23 September 2000. Operators bear the inspection cost and must follow the manufacturer’s service bulletin; the delegate authorised the directive."},"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 is a standard, narrow safety directive targeting a specific mechanical defect in a specific aircraft component. The scope remains tightly focused on the original safety issue (shoulder harness reel attachment) with no expansion beyond the immediate safety concern."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined applicability criterion (specific model series)","Single, unambiguous requirement (one-time inspection)","No nested exceptions or conditional logic","Clear compliance deadline with no alternative methods mentioned","Minimal cross-referencing (only one technical bulletin and one related overseas directive noted)"],"plain_english_summary":"This is a safety order (called an \"Airworthiness Directive\") issued by Australia's aviation safety regulator (CASA) that applies to specific aircraft equipment. It requires owners or operators of aircraft fitted with certain Pacific Scientific shoulder harnesses (model 0108900 series) to inspect and test those harnesses once. The check must follow instructions in a Fokker technical bulletin (SB F28/25-103) and be completed before 23 September 2000. The directive was triggered by an overseas report where a pilot's shoulder harness completely detached from its reel mechanism because it was incorrectly assembled—creating a serious safety risk in an accident."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f28-84-flight-crew-seat-shoulder-harness","history":"/api/acts/ad-f28-84-flight-crew-seat-shoulder-harness/history","analysis":"/api/acts/ad-f28-84-flight-crew-seat-shoulder-harness/analysis","conflicts":"/api/acts/ad-f28-84-flight-crew-seat-shoulder-harness/conflicts","importantCases":"/api/acts/ad-f28-84-flight-crew-seat-shoulder-harness/important-cases","documents":"/api/acts/ad-f28-84-flight-crew-seat-shoulder-harness/documents"}}