{"id":"F2006B11328","name":"AD/MSR/29 - Engine Mount","slug":"ad-msr-29-engine-mount","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":57191,"registerId":"commonwealth-F2006B11328-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/MSR/29 - Engine Mount","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Aerospatiale Rallye Series Aeroplanes\n\n \n\nAD/MSR/29 Engine Mount 8/86\n\nApplicability: Models MS892A150, MS892B150, MS892E150, MS892E-D150, MS893A, MS893B, MS893E, MS893E-D, Rallye 110ST, Rallye 150T, 150T-D, 150ST, 150ST-D, 150SV, 150SVS, Rallye 180T, 180T-D, 180ST.\n\n \n\nRequirement: Action in accordance with Aerospatiale SB No. 146.\n\n \n\nCompliance: Within 100 hours time in service after 31 August 1986 or at the next scheduled inspection for Maintenance Release issue after 31 August 1986 whichever is the later, and thereafter at each issue of a new Maintenance Release.\n\n \n\nBackground: The manufacturer reports cracking of the engine mount at the manufacturer’s data plate attachment rivet holes.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2193},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive addresses the specific technical safety issue of engine mount cracking described in the background section. It has not expanded beyond the original purpose of rectifying the reported manufacturing defect."},"complexity_factors":["Single-issue directive with narrow applicability to specific aircraft models","Reference to external technical standard (Manufacturer Service Bulletin No. 146) for actual repair procedures","Simple alternative compliance condition (100 flight hours vs. next scheduled inspection)"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Aerospatiale Rallye light aircraft to have mechanics inspect and, if necessary, repair the engine mount per Manufacturer Service Bulletin No. 146 to address cracks at the data-plate attachment. Work must be done within 100 flight hours after 31 August 1986 or at the next scheduled inspection (whichever is later), and repeat inspections are required at every subsequent Maintenance Release."}},"importantCases":[],"_links":{"self":"/api/acts/ad-msr-29-engine-mount","history":"/api/acts/ad-msr-29-engine-mount/history","analysis":"/api/acts/ad-msr-29-engine-mount/analysis","conflicts":"/api/acts/ad-msr-29-engine-mount/conflicts","importantCases":"/api/acts/ad-msr-29-engine-mount/important-cases","documents":"/api/acts/ad-msr-29-engine-mount/documents"}}