{"id":"F2006B06590","name":"AD/RES/22 Amdt 1 - Pacific Scientific Buckle - Agricultural Aircraft","slug":"ad-res-22-amdt-1-pacific-scientific-buckle-agricultural-aircraft","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48401,"registerId":"commonwealth-F2006B06590-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/RES/22 Amdt 1 - Pacific Scientific Buckle - Agricultural Aircraft","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nRestraint Equipment\n\nAD/RES/22\n\nAmdt 1\n\n  \nPacific Scientific Buckle \\- Agricultural Aircraft 3/89\n\nApplicability: All safety harnesses used in agricultural aircraft.\n\nRequirement: 1. Inspect to determine if Pacific Scientific buckle, part number 1101550 all dash numbers, is used.\n\n    2. Remove Pacific Scientific buckle P/N 1101550 all dash numbers, from service in agricultural aircraft.\n\nNote: This can be achieved by:\n\n    (a) Replacing the harness by another approved harness which does not use this buckle; or\n\n    (b) Replacing the buckle with a different type which has been approved for that harness.\n\nCompliance: Before 31 December 1989.\n\nBackground: Following an accident, investigations have revealed that some buckles may have retaining toggles manufactured from material which is inadequate for 25g capability. Amdt 1 clarifies the P/No applicability.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2510},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"Amendment 1 refined the scope by clarifying exactly which dash numbers of part number 1101550 are affected, narrowing the applicability to precisely identify the defective buckles compared to the original 1989 directive."},"complexity_factors":["Single, clearly defined part number (P/N 1101550)","Limited applicability to one aircraft category only (agricultural aircraft)","Simple two-step compliance process (inspect, then remove)","No nested exceptions, conditional logic, or cross-references to other legislation","Only two straightforward remediation options provided"],"plain_english_summary":"This safety order requires operators of agricultural aircraft to inspect seat harnesses for Pacific Scientific buckle PN 1101550 (and dash variants) and remove any affected buckles from service by 31 December 1989. Investigators found the buckle’s retaining toggle may fail under crash loads, risking pilot ejection. Affected units must be made airworthy by replacing the buckle or the entire harness with an approved alternative."}},"importantCases":[],"_links":{"self":"/api/acts/ad-res-22-amdt-1-pacific-scientific-buckle-agricultural-aircraft","history":"/api/acts/ad-res-22-amdt-1-pacific-scientific-buckle-agricultural-aircraft/history","analysis":"/api/acts/ad-res-22-amdt-1-pacific-scientific-buckle-agricultural-aircraft/analysis","conflicts":"/api/acts/ad-res-22-amdt-1-pacific-scientific-buckle-agricultural-aircraft/conflicts","importantCases":"/api/acts/ad-res-22-amdt-1-pacific-scientific-buckle-agricultural-aircraft/important-cases","documents":"/api/acts/ad-res-22-amdt-1-pacific-scientific-buckle-agricultural-aircraft/documents"}}