{"id":"F2006B10777","name":"AD/IAI-A/2 - Aileron Autopilot Servo","slug":"ad-iai-a-2-aileron-autopilot-servo","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56233,"registerId":"commonwealth-F2006B10777-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/IAI-A/2 - Aileron Autopilot Servo","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nIsrael Aircraft Industries 1125 (Astra) Series Aeroplanes\n\nAD/IAI-A/2 Aileron Autopilot Servo 1/2000 DM\n\nApplicability: Models 1125 and Astra SPX aeroplanes with serial numbers 030 and 042 to 086 inclusive.\n\nRequirement: 1. Check the attachment arm position of the SVO-85C autopilot aileron servo actuator.\n\n    2. If the position of the arm is found to be incorrect during the Requirement 1 check, inspect the arm, control link and bellcrank for damage and, if necessary, repair or replace the damaged parts.\n\n    3. Install a stopper angle.\n\nNote 1: All actions are to be completed in accordance with Astra Alert Service Bulletin No 1125-27A-157.\n\nNote 2: Israel CAA AD 27-99-10-06 refers.\n\nCompliance: 1. Within 50 hours time in service from 8 December 1999.\n\n    2. Before further flight following the Requirement 1 inspection.\n\n    3. Within 50 hours time in service from 8 December 1999.\n\nThis Airworthiness Directive becomes effective on 8 December 1999.\n\nBackground: The Israel CAA has advised of an unsafe condition involving possible rolling oscillations during autopilot operation. A shorter attachment arm on a new type of autopilot aileron servo actuator allows operation beyond former travel limits, this in turn can drive a control link out of position causing actuation in the opposite direction of autopilot command.","sortOrder":0}],"analysis":{"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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a limited fleet of aircraft. It has not expanded beyond its original purpose of mandating inspection and repair of the autopilot servo issue."},"complexity_factors":["Single, specific aircraft type and limited serial number range (narrow applicability)","Only 3 sequential requirements with clear conditional logic (Requirement 2 only applies if Requirement 1 finds a problem)","No defined terms section — all technical terms are standard aviation terminology","No cross-references to other legislation or complex regulatory provisions","Clear, specific compliance deadlines with unambiguous triggers (50 hours time in service from fixed date)","Single external reference to manufacturer's service bulletin and foreign aviation authority directive"],"plain_english_summary":"This CASA Airworthiness Directive mandates owners/operators of Israel Aircraft Industries Astra 1125 and Astra SPX jets (serial 030 and 042–086) to address an autopilot aileron-servo installation that can over-travel, displace a control link and cause rolls opposite to commanded, risking loss of control. It requires inspection, repair or replacement of damaged linkage, and installation of a stopper angle; compliance is mandatory to legally return the aircraft to service."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive applies to a defined set of aircraft and prescribes specific inspections, repairs and a modification to address the unsafe condition described (Background). The text does not indicate any expansion or narrowing of that applicability beyond the stated serial numbers or beyond the listed corrective actions; it implements the safety response described rather than changing that scope (Applicability; Requirement; Background)."},"complexity_factors":["Narrow applicability limited to specific models and serial numbers (Applicability).","Multiple required actions: inspection, conditional repair/replace, and mandatory installation of a stopper angle (Requirement 1–3).","Short, operationally meaningful compliance windows including 'before further flight' and 50 hours TIS deadlines (Compliance).","Compliance is to be carried out in accordance with an external document (Astra Alert Service Bulletin No 1125‑27A‑157), adding dependency on that bulletin for procedural detail (Note 1 / Requirement).","Safety consequence triggers immediate corrective action and potential grounding until repaired (Requirement 2 / Compliance).","Costs and parts/repair logistics fall on aircraft operators (Requirement / Compliance).","Technical assessment and repair may require qualified maintenance and parts availability (Requirement / Background).","Regulatory enforceability is time‑bound and effective from a fixed date, requiring maintenance record updates and tracking (Compliance; effective date 8 December 1999)."],"plain_english_summary":"Requires operators of specified Israel Aircraft Industries 1125 / Astra SPX aeroplanes (serial nos. 030 and 042–086) to inspect the SVO‑85C autopilot aileron‑servo attachment arm, repair or replace any damaged parts, and install a stopper angle per Astra Alert Service Bulletin No 1125‑27A‑157. CASA sets 50‑hour and before‑further‑flight deadlines; operators pay for inspections, repairs and parts. The directive aims to prevent rolling oscillations caused by excess servo travel from a shorter attachment arm."}},"importantCases":[],"_links":{"self":"/api/acts/ad-iai-a-2-aileron-autopilot-servo","history":"/api/acts/ad-iai-a-2-aileron-autopilot-servo/history","analysis":"/api/acts/ad-iai-a-2-aileron-autopilot-servo/analysis","conflicts":"/api/acts/ad-iai-a-2-aileron-autopilot-servo/conflicts","importantCases":"/api/acts/ad-iai-a-2-aileron-autopilot-servo/important-cases","documents":"/api/acts/ad-iai-a-2-aileron-autopilot-servo/documents"}}