{"id":"F2006B07582","name":"AD/VAT/8 - Tailplane to Fuselage Attachment Brackets - Modification","slug":"ad-vat-8-tailplane-to-fuselage-attachment-brackets-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50211,"registerId":"commonwealth-F2006B07582-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/VAT/8 - Tailplane to Fuselage Attachment Brackets - 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)  Victa and A.E.S.L. Airtourer Series Aeroplanes\n\n \n\nAD/VAT/8 Tailplane to Fuselage Attachment Brackets - Modification\n\nApplicability: Victa Airtourer 100 and 115 with S/Nos. 1 to 27. Document:  Victa SB No. 13.\n\nCompliance: Before 1 September 1971.\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\n11/63\n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-limited safety directive focused on a specific mechanical defect in a narrow class of aircraft. It has not expanded beyond its original purpose of mandating a structural modification to prevent tailplane attachment failure."},"complexity_factors":["Extremely short document (approximately 100 words of substantive content)","No defined terms section","No cross-references to other legislation beyond the enabling regulations (Civil Aviation Regulations 1998, Part 39)","Simple conditional structure: single applicability criterion (specific aircraft models and serial numbers) with single compliance deadline","Single technical reference document (Victa SB No. 13) — actual engineering details are external to the legislative instrument","No exceptions, exemptions, or nested logic"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's aviation safety regulator (CASA). It requires owners of specific **Victa Airtourer 100 and 115 aircraft** (serial numbers 1 to 27) to modify the brackets that attach the tailplane (the small horizontal wing at the back of the plane) to the fuselage (the main body of the aircraft).\n\n**Why this matters:** The modification prevents potential structural failure where the tail connects to the body of the aircraft. If these brackets fail in flight, the pilot could lose control of the aircraft's pitch (up/down movement), with catastrophic consequences.\n\n**Who must comply:** Owners/operators of the affected aircraft must complete this modification **before 1 September 1971**.\n\n**How to comply:** Follow the instructions in **Victa Service Bulletin No. 13**, which provides the technical specifications for the modification."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The document sets a specific, narrow scope: modification of tailplane-to-fuselage attachment brackets on Victa Airtourer 100 and 115 aircraft with serial numbers 1–27, to be done per Victa SB No. 13 before 1 September 1971. The text contains no indication that the scope was broadened or narrowed from an earlier version; therefore there is no evidence in this text that the scope changed from the instrument’s original stated requirements."},"complexity_factors":["Narrow applicability limited to two models and serial numbers 1–27 (reduces scope complexity)","Single, clearly stated mandatory action (modify tailplane attachment brackets) (simple substantive requirement)","Fixed compliance date (before 1 September 1971) (creates a binary timeline constraint)","Technical method delegated to an external document (Victa SB No. 13) (requires cross-reference and access to manufacturer guidance)","No information in the text about alternative compliance methods, extensions, or enforcement details (increases procedural uncertainty)","Historic directive with a dated deadline (practical issues such as parts or records availability may complicate implementation)"],"plain_english_summary":"The directive mandates a physical modification to the tailplane‑to‑fuselage attachment brackets on Victa Airtourer 100 and 115 aircraft, serial numbers 1–27, to be carried out per Victa Service Bulletin No. 13. \n\nOwners/operators must complete the work before 1 September 1971, bearing parts, labour and downtime costs; the Civil Aviation Safety Authority sets the requirement and deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-vat-8-tailplane-to-fuselage-attachment-brackets-modification","history":"/api/acts/ad-vat-8-tailplane-to-fuselage-attachment-brackets-modification/history","analysis":"/api/acts/ad-vat-8-tailplane-to-fuselage-attachment-brackets-modification/analysis","conflicts":"/api/acts/ad-vat-8-tailplane-to-fuselage-attachment-brackets-modification/conflicts","importantCases":"/api/acts/ad-vat-8-tailplane-to-fuselage-attachment-brackets-modification/important-cases","documents":"/api/acts/ad-vat-8-tailplane-to-fuselage-attachment-brackets-modification/documents"}}