{"id":"F2006B10792","name":"AD/IAI-W/17 Amdt 1 - Aileron Push Pull Tube and Guide Rollers","slug":"ad-iai-w-17-amdt-1-aileron-push-pull-tube-and-guide-rollers","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56257,"registerId":"commonwealth-F2006B10792-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/IAI-W/17 Amdt 1 - Aileron Push Pull Tube and Guide Rollers","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 1123 and 1124 (Westwind) Series Aeroplanes\n\nAD/IAI-W/17\n\nAmdt 1\n\n  \nAileron Push Pull Tube and Guide Rollers 11/96\n\nApplicability: Models 1124 and 1124A, all serial numbers.\n\nRequirement: Action in accordance with IAI Service Bulletin No. 1124-27-129.\n\nNote: CAAI AD 95-28 R1 refers.\n\nCompliance: Within 50 hours time in service after 07 June 1995; thereafter at intervals not exceeding 800 hours time in service.\n\nThe initial Compliance date of this Directive remains unchanged, the effective date for Amendment 1 is 10 October 1996.\n\nBackground: Excessive wear caused by chafing has been found on the aileron push pull tube. This may lead to uneven control wheel movement, and if unchecked result in perforation of the control tube.\n\nAmendment 1 extends the repeat inspection periodicity to 800 hours time in service to align with the \"C\" check.\n\nThe original issue of this Airworthiness Directive became effective on 7 June 1995.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope—mandatory safety inspection of aileron control components. The only change is a technical adjustment to inspection frequency (extending the repeat interval to 800 hours), which aligns with maintenance scheduling rather than expanding the directive's coverage."},"complexity_factors":["Very short document (under 200 words)","Only 2 defined applicability criteria (model numbers and serial numbers)","Single cross-reference to external technical document (IAI Service Bulletin)","Simple conditional logic: initial compliance deadline + recurring interval","No nested exceptions or conditional sub-clauses","Plain language background explanation included"],"plain_english_summary":"This is an **Airworthiness Directive** (a mandatory safety order) issued by Australia's Civil Aviation Safety Authority for specific Israeli-made business jets—the **IAI Westwind 1123 and 1124 series**.\n\n**What it does:**\n- Requires owners and operators to inspect the **aileron push-pull tube and guide rollers** on these aircraft. The aileron is the hinged surface on the wing that controls roll (banking left or right), and the push-pull tube is the mechanical linkage that connects the pilot's control wheel to this surface.\n- **Why:** Excessive wear from chafing (rubbing) has been discovered on these tubes. This can cause jerky or uneven control wheel movement, and if ignored, could lead to the tube being worn through completely (perforation)—potentially causing loss of roll control.\n\n**What must be done:**\n- Follow the specific instructions in **IAI Service Bulletin No. 1124-27-129** (the manufacturer's official repair/inspection notice).\n- **First inspection:** Within 50 flight hours after 7 June 1995.\n- **Repeat inspections:** Every 800 flight hours thereafter.\n\n**What changed in this amendment:**\n- This update (Amendment 1, effective 10 October 1996) **extends the repeat inspection interval from the original shorter period to 800 hours** to match the aircraft's regular \"C\" check maintenance schedule—making compliance easier without compromising safety.\n\n**Who it affects:**\n- Owners and operators of IAI Westwind 1124 and 1124A aircraft (all serial numbers).\n- Maintenance organisations servicing these aircraft in Australia."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 1 changed the repeat inspection interval by extending it to 800 hours time in service to align inspections with the maintenance 'C' check (Amendment). The applicability, initial compliance requirement (within 50 hours after 7 June 1995) and requirement to follow IAI Service Bulletin No. 1124-27-129 remain unchanged (Applicability, Compliance, Requirement)."},"complexity_factors":["Narrow applicability — only IAI Westwind models 1124 and 1124A, all serial numbers (Applicability).","Dependency on external technical document — mandatory action is 'in accordance with IAI Service Bulletin No. 1124-27-129' (Requirement), so operators must obtain and follow that bulletin.","Timing and scheduling constraint — initial compliance within 50 hours after 7 June 1995 and repeat intervals not exceeding 800 hours (Compliance); amendment aligns repeats with the 'C' check (Amendment).","Operational burden falls on owners/operators — they pay for inspections, potential repairs and must integrate them into maintenance planning (Compliance/Requirement).","Safety trigger is wear/chafing risk with concrete failure mode (perforation of control tube) that affects control feel and integrity (Background).","Administrative tracking — operators must monitor flight hours to meet the specified intervals (Compliance).","Limited regulatory discretion — the AD prescribes specific corrective action path (service bulletin) and interval; little room for alternate compliance unless the AD or bulletin provides it (Requirement)."],"plain_english_summary":"This Airworthiness Directive requires operators of Israel Aircraft Industries Westwind models 1124 and 1124A to carry out inspections and any corrective work on the aileron push‑pull tube and guide rollers in accordance with IAI Service Bulletin No. 1124‑27‑129. The initial inspection was required within 50 hours after 7 June 1995 and repeat inspections at intervals not exceeding 800 hours.\n\nIt applies to aircraft owners/operators who must schedule, pay for and record inspections/repairs; it targets chafing-related wear that can perforate the control tube if not addressed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-iai-w-17-amdt-1-aileron-push-pull-tube-and-guide-rollers","history":"/api/acts/ad-iai-w-17-amdt-1-aileron-push-pull-tube-and-guide-rollers/history","analysis":"/api/acts/ad-iai-w-17-amdt-1-aileron-push-pull-tube-and-guide-rollers/analysis","conflicts":"/api/acts/ad-iai-w-17-amdt-1-aileron-push-pull-tube-and-guide-rollers/conflicts","importantCases":"/api/acts/ad-iai-w-17-amdt-1-aileron-push-pull-tube-and-guide-rollers/important-cases","documents":"/api/acts/ad-iai-w-17-amdt-1-aileron-push-pull-tube-and-guide-rollers/documents"}}