{"id":"F2006B05363","name":"AD/P68/37 - Frame No. 1","slug":"ad-p68-37-frame-no-1","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45920,"registerId":"commonwealth-F2006B05363-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/P68/37 - Frame No. 1","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/P68/37 Frame No. 1 12/91\n\nApplicability: Model P68C and P68C-TC with serial numbers up to and including 392. Requirement:               Action in accordance with the Technical Requirements of RAI AD 91-243.\n\nNote: Partenavia SB 84 refers.\n\n \n\nCompliance: Within 100 hours time in service after 12 December 1991.\n\n \n\nBackground: Reports of cracks on frame No 1 around the nose landing gear attachment rivets.\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","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive applies to the stated models and serial-number range and requires action according to RAI AD 91-243 within a set time. Based on the text provided, it does not broaden or narrow that applicability beyond the corrective action described: the scope remains the identification and remediation of cracks on frame No. 1 around the nose landing gear attachment rivets as applied to P68C and P68C-TC aircraft up to serial number 392. (Applicability; Requirement; Background)"},"complexity_factors":["Narrow technical scope limited to specific models and serial-number range (Applicability).","Mandatory action references an external technical document (RAI AD 91-243) rather than detailing procedures, requiring cross-reference to understand exact measures (Requirement).","Short, fixed compliance window (100 hours after 12 December 1991) creates operational scheduling constraints (Compliance).","Dependence on manufacturer service bulletin (Partenavia SB 84) and an external AD increases document retrieval and interpretation burden (Note; Requirement).","Enforcement and proof of compliance require maintenance records and possibly approvals from certified organisations (Requirement)."],"plain_english_summary":"What this directive does (mechanics)\n\n- This is an airworthiness directive applying to Partenavia P68C and P68C‑TC aeroplanes with serial numbers up to and including 392. (Applicability)\n- It requires operators to carry out the actions set out in the Technical Requirements of RAI AD 91‑243. The directive does not reproduce those technical actions; it points to RAI AD 91‑243 for the detailed inspection/repair steps. (Requirement)\n- The work must be completed within 100 hours time in service after 12 December 1991. (Compliance)\n\nWhy it was issued (stated reason)\n\n- The directive was issued because of reported cracks on frame No. 1 around the nose landing gear attachment rivets. (Background)\n- The document also notes a related manufacturer service bulletin (Partenavia SB 84). (Note)\n\nWho is affected and who pays\n\n- Owners and operators of the affected P68C and P68C‑TC aircraft must arrange and pay for the inspections and any necessary repairs because the Requirement directs action to be taken on those specific aircraft. (Applicability; Requirement)\n- Maintenance organisations or approved repair stations will typically perform the inspections and repairs under the technical instructions in RAI AD 91‑243. (Requirement)\n\nPractical implications, trade‑offs and implementation points\n\n- The directive delegates technical detail to an external document (RAI AD 91‑243), so operators must obtain and follow that document to know exactly what to inspect and how to repair. (Requirement)\n- There is a fixed compliance window: work must be done within 100 flight hours after 12 December 1991, which creates scheduling and downtime costs for operators. (Compliance)\n- The stated safety trigger is cracking at the nose gear attachment rivets; the corrective actions prescribed by RAI AD 91‑243 will determine the scope and cost of repairs. (Background; Requirement)\n- Compliance imposes a recordkeeping and enforcement obligation: operators must be able to show the inspections/repairs were carried out per the referenced technical requirements. (Requirement)\n\nDecision and discretion\n\n- The Civil Aviation Safety Authority (via this directive) sets the applicability and the compliance deadline; the technical content and repair methods are determined by the referenced technical requirement RAI AD 91‑243 and the manufacturer bulletin Partenavia SB 84. (Applicability; Requirement; Note)\n\nPotential secondary effects to watch for\n\n- Operators confronting high repair cost or long downtime may choose alternative responses (e.g. temporary grounding, accelerated retirement, or negotiated repair quotes), but the directive requires completion of the specified actions within the compliance window. (Compliance; Requirement)\n\nSource references: Applicability; Requirement; Compliance; Background; Note."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific structural defect in specific aircraft. It has not expanded beyond its original purpose of mandating inspection and repair of frame cracks."},"complexity_factors":["Very short document (approximately 150 words)","Only 2 defined applicability criteria (model and serial number)","Single compliance requirement with reference to external technical document","No nested conditions or exceptions","No cross-references to other legislation or regulations beyond the external technical standard","Straightforward temporal compliance trigger (100 hours time in service after fixed date)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA).\n\n**What it does:**\nIt requires owners and operators of specific Partenavia P68 aircraft to inspect and repair a structural problem. The issue is cracks appearing in \"Frame No. 1\" (a structural component near where the nose wheel attaches) around the rivets that hold the nose landing gear.\n\n**Who it affects:**\n- **Aircraft models:** Partenavia P68C and P68C-TC\n- **Serial numbers:** Up to and including 392 (so older aircraft in this series)\n- **People affected:** Aircraft owners, operators, and maintenance engineers responsible for keeping these planes airworthy\n\n**What must be done:**\nThe aircraft must be inspected and repaired following the technical instructions in an Italian aviation document called \"RAI AD 91-243\" (RAI is the Italian aviation authority). There's also a reference to \"Partenavia SB 84\" — SB stands for Service Bulletin, which is like a manufacturer's technical notice.\n\n**When it must be done:**\nWithin 100 hours of flying time after 12 December 1991.\n\n**Why it matters:**\nCracks in the airframe around landing gear attachments are serious safety risks. If left unchecked, structural failure could occur during landing or takeoff. This directive ensures the problem is found and fixed before it becomes dangerous."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-37-frame-no-1","history":"/api/acts/ad-p68-37-frame-no-1/history","analysis":"/api/acts/ad-p68-37-frame-no-1/analysis","conflicts":"/api/acts/ad-p68-37-frame-no-1/conflicts","importantCases":"/api/acts/ad-p68-37-frame-no-1/important-cases","documents":"/api/acts/ad-p68-37-frame-no-1/documents"}}