{"id":"F2006B06608","name":"AD/ROBIN/11 - Carburettor Inlet Fitting","slug":"ad-robin-11-carburettor-inlet-fitting","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48450,"registerId":"commonwealth-F2006B06608-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ROBIN/11 - Carburettor Inlet Fitting","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)  Robin Aviation Series Aeroplanes\n\n \n\nAD/ROBIN/11 Carburettor Inlet Fitting 7/89\n\nApplicability: All models equipped with Lycoming O-235, O-320 or O-360 series engine. Requirement:               Action in accordance with Avions Pierre Robin Service Bulletin No 112.\n\nNote: DGAC AD 89-052(A) refers.\n\n \n\nCompliance: By 26 May 1989.\n\n \n\nBackground: The manufacturer requires inspection and immediate replacement of the inlet fitting if leaks are detected. If no leaks are evident fitting must be replaced at next 50 hourly inspection.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive targeting a specific known defect in specific aircraft. It has not expanded beyond its original technical scope."},"complexity_factors":["Single, specific mechanical component targeted (carburettor inlet fitting)","Simple binary compliance path: immediate replacement if leaking, or deferred to next 50-hour inspection if not","No defined terms section or interpretive provisions","No cross-references to other legislation (only references to manufacturer service bulletin and French aviation authority directive)","Single applicability criterion (three specific engine models)","Fixed compliance date with no conditional extensions or exceptions"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It applies to **Robin Aviation aeroplanes** fitted with specific Lycoming engines (O-235, O-320, or O-360 series).\n\n**What it requires:**\n- Owners and operators must inspect the **carburettor inlet fitting** (the connection where fuel enters the carburettor) for leaks.\n- **If leaks are found:** Replace the fitting immediately.\n- **If no leaks:** Replace the fitting at the next **50-hourly inspection** (a routine maintenance check done every 50 hours of flight time).\n\n**Why it matters:**\nFuel leaks at the carburettor inlet pose a fire risk and could cause engine failure. This directive forces action to prevent accidents.\n\n**Compliance deadline:**\nAll affected aircraft had to comply by **26 May 1989**.\n\n**Key reference:**\nThe directive points to **Avions Pierre Robin Service Bulletin No 112** — the manufacturer's official technical instruction for carrying out the work."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The text of the AD itself defines a narrow technical scope: it applies to Robin-series aeroplanes fitted with specified Lycoming engines and requires actions set out in a named service bulletin, with a compliance date and conditional replacement rule. The document does not indicate any alteration or expansion of that scope from an earlier or different intent; therefore no change of scope is evident within the supplied text."},"complexity_factors":["Limited and specific applicability (only Robin-series aeroplanes with Lycoming O-235/O-320/O-360 engines). (Applicability)","Dependence on an external technical document (Avions Pierre Robin Service Bulletin No 112) for the precise maintenance actions. (Requirement)","Conditional instruction: immediate replacement if leaks are detected; otherwise replacement at the next 50‑hour inspection — introduces a monitoring and decision step. (Background)","Fixed compliance deadline increases administrative urgency. (Compliance)","Reference to a foreign authority directive (DGAC AD 89-052(A)) adds a cross‑reference for operators and maintainers. (Note)"],"plain_english_summary":"This AD requires owners/operators of Robin-series aeroplanes fitted with Lycoming O‑235, O‑320 or O‑360 engines to inspect the carburettor inlet fitting and follow Avions Pierre Robin Service Bulletin No. 112, with compliance by 26 May 1989. If leaks are found replace immediately; if not, replace at the next 50‑hour inspection. The operator bears inspection and replacement costs and must ensure the work meets the service bulletin to remain compliant."}},"importantCases":[],"_links":{"self":"/api/acts/ad-robin-11-carburettor-inlet-fitting","history":"/api/acts/ad-robin-11-carburettor-inlet-fitting/history","analysis":"/api/acts/ad-robin-11-carburettor-inlet-fitting/analysis","conflicts":"/api/acts/ad-robin-11-carburettor-inlet-fitting/conflicts","importantCases":"/api/acts/ad-robin-11-carburettor-inlet-fitting/important-cases","documents":"/api/acts/ad-robin-11-carburettor-inlet-fitting/documents"}}