{"id":"F2006B07604","name":"AD/WILGA/3 - Tailplane to Fuselage Joint","slug":"ad-wilga-3-tailplane-to-fuselage-joint","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50288,"registerId":"commonwealth-F2006B07604-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/WILGA/3 Tailplane to Fuselage Joint 9","sectionType":"part","heading":"AD/WILGA/3 Tailplane to Fuselage Joint 9/2000 TX","content":"# AD/WILGA/3 Tailplane to Fuselage Joint 9/2000 TX\n\nApplicability: Model PZL-104 WILGA 80 aircraft.\n\nRequirement: Action in accordance with PZL Mandatory Service Bulletin 10400030.\n\nNote: Polish General Inspectorate of Civil Aviation AD No. SP-0064-2000-A refers.\n\nCompliance: Before further flight after 17 July 2000, unless already accomplished.\n\nThis Airworthiness Directive becomes effective on 17 July 2000.\n\nBackground: A failure of the front tailplane to fuselage joint has been reported. The Polish regulatory authority requires certain actions to be accomplished in order to assure the continued airworthiness of the aircraft.\n\n![Signature of David Alan Villiers Delegate of the Civil Aviation Safety Authority](image.003.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 14 July 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 17 July 2000.","sortOrder":1}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific mechanical defect on a specific aircraft model. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (under 300 words)","Only 1 defined aircraft model in applicability","Single, unambiguous compliance requirement","No nested exceptions or conditional logic — only one date threshold (17 July 2000)","Cross-reference to external technical document (service bulletin) but no internal cross-references within the legislation itself","No interpretation section or defined terms"],"plain_english_summary":"This CASA safety order applies to PZL-104 Wilga 80 aircraft in Australia and requires owners/operators to inspect and repair the horizontal stabiliser-to-fuselage connection per PZL Mandatory Service Bulletin 10400030. The work must be completed before any flight after 17 July 2000 (unless already done). It’s legally mandatory because a failed tailplane joint can cause loss of control and a fatal crash, and it aligns with relevant Polish safety direction."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The AD confines action to PZL-104 WILGA 80 aircraft and mandates the steps in the PZL Mandatory Service Bulletin to address a reported tailplane-to-fuselage joint failure (Applicability; Requirement; Background). It mirrors the Polish AD referenced and does not broaden affected types, actions, or timelines beyond the referenced service bulletin and the stated compliance date (Note; Compliance)."},"complexity_factors":["Narrow applicability (single type: PZL-104 WILGA 80) reduces scope complexity (Applicability).","Single external technical reference (PZL Mandatory Service Bulletin 10400030) shifts procedural detail outside the AD (Requirement).","Immediate compliance deadline (before next flight after 17 July 2000) creates operational urgency (Compliance).","Cross-reference to foreign regulator/advisory (Polish AD SP-0064-2000-A) requires alignment with overseas documentation (Note/Background).","No alternative procedures, exemptions, or phased compliance options stated in the AD (Requirement/Compliance).","Short, prescriptive instrument — enforcement discretion is confined to the CASA delegate issuing the AD, with technical execution left to operators/maintenance organisations (opening paragraph; signature)."],"plain_english_summary":"This AD requires owners/operators of PZL-104 WILGA 80 aircraft to carry out the corrective actions set out in PZL Mandatory Service Bulletin 10400030 to address a reported failure of the front tailplane-to-fuselage joint (Applicability; Requirement; Background). Compliance is mandatory before next flight after 17 July 2000, so operators bear the inspection and repair cost and any operational downtime; the CASA delegate enforces the requirement and references the Polish AD that prompted it (Compliance; Requirement; Background)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-wilga-3-tailplane-to-fuselage-joint","history":"/api/acts/ad-wilga-3-tailplane-to-fuselage-joint/history","analysis":"/api/acts/ad-wilga-3-tailplane-to-fuselage-joint/analysis","conflicts":"/api/acts/ad-wilga-3-tailplane-to-fuselage-joint/conflicts","importantCases":"/api/acts/ad-wilga-3-tailplane-to-fuselage-joint/important-cases","documents":"/api/acts/ad-wilga-3-tailplane-to-fuselage-joint/documents"}}