{"id":"F2006B07304","name":"AD/TB10/35 Amdt 2 - Aileron and Elevator Control Gimbal Joint","slug":"ad-tb10-35-amdt-2-aileron-and-elevator-control-gimbal-joint","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49292,"registerId":"commonwealth-F2006B07304-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/TB10/35 Amdt 2 - Aileron and Elevator Control Gimbal Joint","content":"![](image.001.png)\n\nAIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/TB10/35 Amdt 1 and issues the following 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\nAerospatiale (Socata) TB9 and TB10 (Tobago) Series Aeroplanes\n\nAD/TB10/35\n\nAmdt 2\n\n  \nAileron and Elevator Control Gimbal Joint 4/2004\n\nApplicability: All Model TB9 and TB10 aircraft, without MOD 10-0209-27 or Service Bulletin No.\n\nBS 10-140 incorporated.\n\nRequirement: Inspect the aileron and elevator control gimbal joints in accordance with Socata Service Bulletin TB No. 10-130 Revision 2, dated January 2004.\n\nNote: DGAC AD F-2003-368 R2 refers.\n\nCompliance: 1. Within 300 flight hours or 12 months, whichever occurs first; following delivery of the aircraft or replacement of an aileron or elevator gimbal joint;\n\nor\n\nWithin 50 flight hours after 27 November 2003, whichever occurs later.\n\n2. Repeat thereafter at intervals not to exceed 110 flight hours or 14 months, whichever occurs first.\n\nThe compliance times remain unchanged by this issue. This Amendment becomes effective on 15 April 2004.\n\nBackground: Failure of an aileron control gimbal joint shear pin could result in disconnection of the joint and consequent loss of control. This Directive requires inspection of the shear and joint pins for security and the application of paint witness marks to the pins.\n\nAmendment 1 extended the inspection to the elevator control gimbal joints and changed compliance times.\n\nAmendment 2 is issued in response to a revision of the related DGAC AD, which changes aircraft applicability to exclude aircraft that have the terminating modification for the requirements of this Directive incorporated.\n\nAerospatiale (Socata) TB9 and TB10 (Tobago) Series Aeroplanes\n\nAD/TB10/35 Amdt 2 (continued)\n\nThe original issue of this Airworthiness Directive became effective on 11 July 2002.\n\n![Signature of David Villiers Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 5 March 2004\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 24 March 2004.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 2 narrows the AD's scope by excluding TB9/TB10 aircraft that already have the terminating modification MOD 10-0209-27 or Service Bulletin BS 10-140 incorporated; previously the AD applied to all affected aircraft and earlier amendments changed other applicability and compliance timing (Background)."},"complexity_factors":["Direct operational requirement: mandatory inspection and paint witness marking of shear and joint pins (Requirement; Background).","Applicability carve-out: excludes aircraft with MOD 10-0209-27 or Service Bulletin BS 10-140 incorporated (Applicability; Background).","Multiple compliance triggers and windows: different initial deadlines depending on delivery, part replacement, or a fixed date, plus repeat intervals (Compliance).","External technical reference: inspection must follow Socata Service Bulletin TB No. 10-130 Rev 2 (Requirement).","Cross-jurisdictional linkage: refers to DGAC AD F-2003-368 R2 as related authority (Note).","Operator decision point: option to incorporate terminating modification or SB to remove ongoing inspection burden (Applicability; Background)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Aerospatiale (Socata) TB9 and TB10 aircraft to inspect and mark the aileron and elevator control gimbal joint shear and joint pins, following Socata Service Bulletin TB No. 10-130 Rev 2. It applies until the terminating modification (MOD 10-0209-27) or Service Bulletin BS 10-140 is incorporated, sets specific initial and repeat inspection intervals, and makes operators responsible for carrying out inspections and any subsequent actions."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The legislation maintains its original narrow scope — safety inspection of specific control joints on specific aircraft models. Amendment 2 slightly refines the applicability by excluding aircraft with terminating modifications, but this is a precision adjustment rather than scope creep. The directive remains tightly focused on its original safety purpose."},"complexity_factors":["Single, clearly defined applicability (two specific aircraft models with explicit exclusions)","Straightforward requirement referencing a single external technical document (Socata Service Bulletin TB No. 10-130 Rev 2)","Simple two-part compliance schedule with clear time-based triggers (flight hours OR calendar months)","Minimal defined terms (only standard aviation acronyms like AD, CASR, DGAC)","No nested exceptions or conditional logic beyond the applicability exclusion","Short document (approximately 400 words) with clear section headers","Single amendment purpose (updating applicability based on terminating modifications)"],"plain_english_summary":"This CASA safety order (Amendment 2) replaces the prior version and requires owners/operators of Socata TB9 and TB10 aircraft to inspect aileron and elevator gimbal joints for loose or failing shear pins and apply paint witness marks to detect movement. It excludes aircraft with MOD 10-0209-27 or Service Bulletin BS 10-140 installed. The measures are safety-critical—failed pins can disconnect controls—and set initial and repeat inspection intervals to reduce the risk of loss of control."},"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-tb10-35-amdt-2-aileron-and-elevator-control-gimbal-joint","history":"/api/acts/ad-tb10-35-amdt-2-aileron-and-elevator-control-gimbal-joint/history","analysis":"/api/acts/ad-tb10-35-amdt-2-aileron-and-elevator-control-gimbal-joint/analysis","conflicts":"/api/acts/ad-tb10-35-amdt-2-aileron-and-elevator-control-gimbal-joint/conflicts","importantCases":"/api/acts/ad-tb10-35-amdt-2-aileron-and-elevator-control-gimbal-joint/important-cases","documents":"/api/acts/ad-tb10-35-amdt-2-aileron-and-elevator-control-gimbal-joint/documents"}}