{"id":"F2006B09911","name":"AD/F50/80 - Flight Crew Seat Shoulder Harness","slug":"ad-f50-80-flight-crew-seat-shoulder-harness","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55110,"registerId":"commonwealth-F2006B09911-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/F50/80 Flight Crew Seat Shoulder Harn","sectionType":"part","heading":"AD/F50/80 Flight Crew Seat Shoulder Harness 3/2000","content":"# AD/F50/80 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 F50-25-051.\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_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. It addresses a specific safety defect in a specific piece of equipment (Pacific Scientific Model 0108900 shoulder harnesses) with a targeted one-time inspection requirement. There is no evidence of scope creep or expansion beyond the original safety purpose."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined term implicitly referenced (the SB F50-25-051 technical bulletin)","Single, unambiguous requirement: one inspection following external instructions","No nested conditions or exceptions","Clear applicability criteria (specific model number)","Single compliance date with no alternative timelines or conditional extensions","No cross-references to other legislation beyond the enabling regulation (CAR 1998 subreg 39.1(1)) and a note about a related Dutch directive"],"plain_english_summary":"CASA requires owners/operators of aircraft fitted with Pacific Scientific shoulder harnesses (Model 0108900 series) to carry out a one‑time inspection and functional test per Fokker SB F50‑25‑051, to be completed before 23 September 2000. This mandatory safety order responds to an overseas incident where a pilot’s harness detached, creating a serious restraint failure risk; noncompliance grounds the aircraft from legal flight and affects operators, owners and maintenance engineers."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD confines its scope to aircraft fitted with the specified Pacific Scientific Model 0108900 series shoulder harnesses and mandates a one-time inspection to address a reported incorrect reel attachment. The instrument text (Applicability; Requirement; Background; Compliance) shows no expansion or narrowing beyond that remedial focus."},"complexity_factors":["Narrow, equipment-specific applicability: limited to Pacific Scientific Model 0108900 series harnesses (Applicability).","Single mandated action: one-time inspection and functional check only (Requirement).","Prescribed method: inspection must follow Fokker Services SB F50-25-051, creating reliance on an external service bulletin (Requirement).","Fixed compliance deadline creates scheduling pressure for operators (Compliance: before 23 September 2000).","Safety-critical nature implies inspections likely require qualified personnel and recordkeeping (implied by 'functional check' and airworthiness context).","Cross-reference to overseas/regulatory actions (RLD AD 1999-139 and Background) increases traceability but adds coordination steps."],"plain_english_summary":"Requires a one-time inspection and functional check of Pacific Scientific Model 0108900 series flight crew shoulder harness assemblies, carried out in accordance with Fokker Services SB F50-25-051. It applies to all aircraft fitted with those harnesses; operators must complete the inspection before 23 September 2000 and therefore bear the direct cost and scheduling burden. CASA issued the AD after an overseas report that a harness pulled out of its inertia reel due to an incorrectly attached reel mechanism."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f50-80-flight-crew-seat-shoulder-harness","history":"/api/acts/ad-f50-80-flight-crew-seat-shoulder-harness/history","analysis":"/api/acts/ad-f50-80-flight-crew-seat-shoulder-harness/analysis","conflicts":"/api/acts/ad-f50-80-flight-crew-seat-shoulder-harness/conflicts","importantCases":"/api/acts/ad-f50-80-flight-crew-seat-shoulder-harness/important-cases","documents":"/api/acts/ad-f50-80-flight-crew-seat-shoulder-harness/documents"}}