{"id":"F2006B10809","name":"AD/IAI-W/9 Amdt 2 - Horizontal Stabiliser Rear Spar Splice Fittings","slug":"ad-iai-w-9-amdt-2-horizontal-stabiliser-rear-spar-splice-fittings","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56287,"registerId":"commonwealth-F2006B10809-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/IAI-W/9 Amdt 2 - Horizontal Stabiliser Rear Spar Splice Fittings","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/9\n\nAmdt 2\n\n  \nHorizontal Stabiliser Rear Spar Splice Fittings 3/89\n\nDM\n\nApplicability: All models 1124 and 1124A.\n\nRequirement: Action in accordance with Israel Aircraft Industries SBs 1124-55-020 Rev 2 and 1124-55-021 Rev 3.\n\nNote: Israel CAA AD 85-001 Rev 2 refers.\n\nCompliance: Within 75 hours time in service after 25 January 1989, unless previously inspected within the last 225 hours time in service since compliance with the previous issue of this Directive. Thereafter at intervals not exceeding 300 hours time in service.\n\nBackground: Cracks have been found in the splice fitting (hinge assembly) P/N 453005-501 on several aircraft. Amendment 2 reduces the inspection periodicity from 600 to 300 hours time in service.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2078},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment tightens safety requirements by increasing inspection frequency (from 600 to 300 hours) but does not expand the scope beyond the original aircraft models and specific component addressed in the original directive."},"complexity_factors":["Single, specific mechanical component addressed with no sub-variants","Conditional initial compliance deadline creates two possible pathways depending on prior maintenance history","Relies on external technical documents (Service Bulletins) for actual inspection procedures rather than including them inline","Minimal cross-referencing to other legislation beyond the originating Civil Aviation Regulations"],"plain_english_summary":"This mandatory Airworthiness Directive requires owners/operators of IAI Westwind models 1124 and 1124A to inspect the horizontal stabiliser rear spar splice fitting (P/N 453005-501) because cracks have been found that could cause tail structural failure and loss of control. Inspections must follow IAI Service Bulletins 1124-55-020 Rev 2 and 1124-55-021 Rev 3, first within 75 flight hours after 25 Jan 1989 (unless recently done) and thereafter every 300 flight hours."}},"importantCases":[],"_links":{"self":"/api/acts/ad-iai-w-9-amdt-2-horizontal-stabiliser-rear-spar-splice-fittings","history":"/api/acts/ad-iai-w-9-amdt-2-horizontal-stabiliser-rear-spar-splice-fittings/history","analysis":"/api/acts/ad-iai-w-9-amdt-2-horizontal-stabiliser-rear-spar-splice-fittings/analysis","conflicts":"/api/acts/ad-iai-w-9-amdt-2-horizontal-stabiliser-rear-spar-splice-fittings/conflicts","importantCases":"/api/acts/ad-iai-w-9-amdt-2-horizontal-stabiliser-rear-spar-splice-fittings/important-cases","documents":"/api/acts/ad-iai-w-9-amdt-2-horizontal-stabiliser-rear-spar-splice-fittings/documents"}}