{"id":"F2006B05342","name":"AD/P68/15 - Fin, Rudder Upper Hinge Attachment Area - Modification","slug":"ad-p68-15-fin-rudder-upper-hinge-attachment-area-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45840,"registerId":"commonwealth-F2006B05342-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/P68/15 - Fin, Rudder Upper Hinge Attachment Area - Modification","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Partenavia P68 Series Aeroplanes\n\n \n\nAD/P68/15 Fin, Rudder Upper Hinge Attachment\n\nArea - Modification Applicability:  All models P68 and P68B with S/Nos. prior to 129. Document:              Partenavia SB No. 34, Rev. 1.\n\nCompliance:   Within 100 hours time in service after 31 March 1979.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n\n3/79\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1376},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow scope — mandating a specific structural modification for defined aircraft models to correct a safety deficiency in the tail section. There is no evidence of scope creep or expansion beyond the original technical intent."},"complexity_factors":["Extremely brief text (approximately 80 words of substantive content)","Single unambiguous compliance action required","Clear applicability criteria limiting scope to specific model variants and serial number range","Simple time-based compliance trigger (100 hours time-in-service)","References only one external technical document (Service Bulletin No. 34 Rev. 1)"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) that has the force of law.\n\n**What it does:**\nRequires owners of specific Italian-made Partenavia aircraft to modify the hinge that attaches the rudder (the movable part of the tail) to the fin (the fixed vertical part of the tail).\n\n**Who is affected:**\nOwners and operators of Partenavia P68 and P68B model aeroplanes with serial numbers prior to 129.\n\n**What must be done:**\nCarry out a structural modification to the fin/rudder upper hinge attachment area exactly as described in the manufacturer's **Service Bulletin No. 34, Revision 1** (a technical instruction manual from the aircraft maker).\n\n**Deadline:**\nWithin 100 hours of flight time after 31 March 1979.\n\n**Why it matters:**\nTo prevent potential failure of the rudder attachment, which could lead to loss of directional control of the aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-15-fin-rudder-upper-hinge-attachment-area-modification","history":"/api/acts/ad-p68-15-fin-rudder-upper-hinge-attachment-area-modification/history","analysis":"/api/acts/ad-p68-15-fin-rudder-upper-hinge-attachment-area-modification/analysis","conflicts":"/api/acts/ad-p68-15-fin-rudder-upper-hinge-attachment-area-modification/conflicts","importantCases":"/api/acts/ad-p68-15-fin-rudder-upper-hinge-attachment-area-modification/important-cases","documents":"/api/acts/ad-p68-15-fin-rudder-upper-hinge-attachment-area-modification/documents"}}