{"id":"F2006B10339","name":"AD/GYRO/1 - Airworthiness Limitations","slug":"ad-gyro-1-airworthiness-limitations","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56095,"registerId":"commonwealth-F2006B10339-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GYRO/1 - Airworthiness Limitations","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)  \nGyroflug SC01 B-160 (Speed Canard) Series Aeroplanes\n\nAD/GYRO/1 Airworthiness Limitations 3/98\n\nApplicability: All models SC01 B-160.\n\nRequirement: 1. Retire the entire airframe from service in accordance with the fatigue life limitations specified in Australian Certificate of Type Approval Data Sheet No. A104.\n\nCompliance: This requirement becomes effective from 26 February 1998.\n\nThis airworthiness directive becomes effective on 26 February 1998.\n\nBackground: This model was certificated in Australia under the automatic acceptance provisions of CAR 22A, based on prior acceptance by the UK CAA. Therefore any conditions or restrictions placed on this aeroplane by the UK CAA and/or the LBA will automatically apply in Australia. The fatigue life limitations of this AD were imposed by the UK CAA as a condition of type certification in that country (UK CAA Airworthiness Approval Note AAN 19687 refers).\n\nThe UK CAA has stated that the initial fatigue life will remain at 3,000 hours pending justification of life factors used by the manufacturer.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue airworthiness directive targeting one specific aircraft type for a defined safety purpose (fatigue life limits). It has not expanded beyond its original intent."},"complexity_factors":["Single, unambiguous operative requirement (retire airframe at specified hours)","No defined terms section — relies on external document (Data Sheet A104) for the specific hour limit","No conditional logic or nested exceptions","Minimal cross-referencing (only to CAR 22A, UK CAA AAN 19687, and Data Sheet A104)","Extremely short document (under 200 words of operative text)","Single applicability criterion (all models SC01 B-160)"],"plain_english_summary":"The AD requires all Gyroflug SC01 B-160 (Speed Canard) aeroplanes in Australia to be grounded and the airframe permanently retired once they reach the fatigue life limits in Certificate of Type Approval Data Sheet No. A104 (a precautionary 3,000‑hour limit). It affects Australian owners/operators and was issued because UK findings raised safety‑critical airframe fatigue concerns; Australia’s acceptance of UK certification makes the restriction automatically binding. Effective 26 February 1998."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD enforces retirement at the fatigue-life limits imposed as a condition of UK type certification and recorded in Australian Data Sheet No. A104. The text does not expand or narrow that requirement beyond the certification condition; the holding of an initial 3,000-hour life pending justification is part of the original certification condition."},"complexity_factors":["Single prescriptive requirement (retire airframe at prescribed fatigue life) — low procedural complexity","Dependency on an external document (Australian Certificate of Type Approval Data Sheet No. A104) for the key numeric limits","Reliance on foreign authority decisions (UK CAA Airworthiness Approval Note AAN 19687) for the certification condition","Temporary initial value (3,000 hours) pending manufacturer's justification introduces uncertainty for operators","Universal applicability to all SC01 B‑160 models concentrates compliance across all owners/operators","Clear effective date (26 February 1998) imposes a concrete compliance timeline"],"plain_english_summary":"This airworthiness directive requires owners/operators of Gyroflug SC01 B‑160 aeroplanes to retire each airframe when it reaches the fatigue-life limit set out in Australian Type Approval Data Sheet No. A104. It applies to all SC01 B‑160 models and became effective 26 February 1998.\n\nThe directive implements a UK CAA condition of type certification (initial fatigue life held at 3,000 hours pending manufacturer justification). Owners bear the cost of retirement; CASA enforces compliance; the requirement depends on external certification documents."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gyro-1-airworthiness-limitations","history":"/api/acts/ad-gyro-1-airworthiness-limitations/history","analysis":"/api/acts/ad-gyro-1-airworthiness-limitations/analysis","conflicts":"/api/acts/ad-gyro-1-airworthiness-limitations/conflicts","importantCases":"/api/acts/ad-gyro-1-airworthiness-limitations/important-cases","documents":"/api/acts/ad-gyro-1-airworthiness-limitations/documents"}}