{"id":"F2006B04849","name":"AD/CAP 10/7 - Rudder Lower Support","slug":"ad-cap-10-7-rudder-lower-support","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44656,"registerId":"commonwealth-F2006B04849-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.001.png)\n\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 CASR 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.\n\n![](image.001.png)  \n\nAvions Mudry Cap Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/CAP 10/7 Rudder Lower Support 10/2004","sectionType":"part","heading":"AD/CAP 10/7 Rudder Lower Support 10/2004 TX","content":"# AD/CAP 10/7 Rudder Lower Support 10/2004 TX\n\nApplicability: All Model CAP10B aircraft, fitted with a rudder lower support CAP10-30-08-01 or CAP230-30-08-01, as applicable, with or without a letter at end; supplied by APEX Aircraft after 1 January 2001 (supplied as spare part or incorporated in production).\n\nRequirement: 1. Perform inspection ‘A’ of the Accomplishment Instructions of APEX Aircraft Service Bulletin No. 040707, dated 29 July 2004.\n\n2. Perform inspection ‘B’ of the Accomplishment Instructions of APEX Aircraft Service Bulletin No. 040707.\n\nNote: DGAC Emergency AD UF-2004-143 refers.\n\nCompliance: 1. Before further flight after 18 August 2004.\n\n2. Within 25 flight hours after 18 August 2004, and thereafter at intervals not to exceed 25 flight hours.\n\nThis Airworthiness Directive becomes effective on 18 August 2004.\n\nBackground: Reports were received of cracked rudder lower supports.\n\n![](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 17 August 2004\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 18 August 2004.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD’s scope is limited and targeted: it applies only to CAP10B aircraft fitted with the specified rudder lower supports supplied by APEX after 1 January 2001 and mandates inspections to detect reported cracks. The text and background indicate the measure addresses the reported cracked supports and does not expand beyond that technical purpose (Applicability; Requirement; Background)."},"complexity_factors":["Narrow applicability tied to specific part numbers and supply date — requires traceability of parts to APEX after 1 January 2001 (Applicability).","Inspection procedures are contained in an external document (APEX Service Bulletin No. 040707 dated 29 July 2004), so compliance depends on that bulletin’s technical detail (Requirement).","Two-stage inspection regime with an immediate pre-flight requirement and a recurrent 25-flight-hour interval increases operational scheduling burden (Compliance).","Possible need for follow-on corrective action is implied but not detailed in the AD text, creating reliance on maintenance judgement and the service bulletin for fixes (Requirement/Note).","Reference to a foreign regulator’s emergency AD (DGAC UF-2004-143) signals coordination but does not itself prescribe additional domestic steps (Note/Background)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of CAP10B aeroplanes fitted with rudder lower support parts CAP10-30-08-01 or CAP230-30-08-01 (supplied by APEX after 1 Jan 2001) to carry out two inspections per APEX Service Bulletin No. 040707. Inspection A is required before the next flight after 18 Aug 2004; Inspection B within 25 flight hours and then every 25 flight hours. The CASA delegate issued the requirement; operators pay for inspections and any repairs and must keep the aircraft grounded until Inspection A is done."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific unsafe condition in a specific aircraft part. It has not expanded beyond the original safety issue of cracked rudder lower supports in CAP10B aircraft."},"complexity_factors":["Single, specific aircraft model targeted (CAP10B)","Only 2 defined part numbers in applicability (CAP10-30-08-01 and CAP230-30-08-01)","Two distinct inspection requirements with clear timelines","No nested exceptions or conditional logic — straightforward 'if applicable, do this' structure","References external document (Service Bulletin No. 040707) but does not reproduce its contents","Total length: approximately 250 words","Single background fact pattern (cracked supports reported)"],"plain_english_summary":"This AD requires owners/operators of Avions Mudry CAP10B aircraft with rudder lower supports supplied by APEX after 1 January 2001 (factory‑fitted or spares) to inspect that lower rudder support for cracks.\n\nInspections must be done immediately and then repeatedly at short flight‑hour intervals to catch cracking that could lead to rudder failure and loss of control; compliance is legally mandatory under CASA."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-cap-10-7-rudder-lower-support","history":"/api/acts/ad-cap-10-7-rudder-lower-support/history","analysis":"/api/acts/ad-cap-10-7-rudder-lower-support/analysis","conflicts":"/api/acts/ad-cap-10-7-rudder-lower-support/conflicts","importantCases":"/api/acts/ad-cap-10-7-rudder-lower-support/important-cases","documents":"/api/acts/ad-cap-10-7-rudder-lower-support/documents"}}