{"id":"F2006B06620","name":"AD/ROBIN/22 - Carburettor Spacer","slug":"ad-robin-22-carburettor-spacer","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48481,"registerId":"commonwealth-F2006B06620-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ROBIN/22 - Carburettor Spacer","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)  \nRobin Aviation Series Aeroplanes\n\nAD/ROBIN/22 Carburettor Spacer 7/95\n\nApplicability: Robin DR 400 and R 2160 aircraft as detailed by serial number in Pierre Robin Airplanes Service Bulletin No. 139.\n\nRequirement: Action in accordance with Pierre Robin Airplanes Service Bulletin No. 139.\n\nNote: DGAC Airworthiness Directive 94-275(A) refers.\n\nCompliance: Effective 22 June 1995; within 10 hours time in service.\n\nBackground: This Directive has been issued to require an inspection of the carburettor to air heater box spacer for evidence of adhesive tape. The requirement follows a report of pieces of adhesive tape being found in the bore of a carburettor spacer. Should adhesive tape in the carburettor spacer bore become dislodged in flight, the tape may interfere with the carburettor operation with a subsequent loss of engine power.","sortOrder":0}],"analysis":{"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. It has not expanded beyond its original purpose of mandating a one-time inspection for adhesive tape contamination in a specific part."},"complexity_factors":["Single, specific mechanical inspection requirement","Only 2 aircraft models affected, identified by serial number reference to external document","No defined terms section","No conditional logic or nested exceptions","Cross-reference to only one external technical document (Service Bulletin No. 139) and one French aviation directive for background","Extremely short (under 200 words)"],"plain_english_summary":"This is a **safety order** (called an \"Airworthiness Directive\") issued by Australia's aviation safety regulator for specific French-made light aircraft.\n\n**What it does:**\n- Requires owners/operators of **Robin DR 400 and R 2160 aeroplanes** (identified by specific serial numbers) to inspect a particular engine part — the **carburettor spacer** (a component that sits between the carburettor and the air heater box).\n- The inspection looks for **adhesive tape** that may have been left inside this spacer during manufacturing or maintenance.\n\n**Why it matters:**\n- If adhesive tape comes loose during flight, it can get sucked into the carburettor and **block the fuel-air mixture**, causing **sudden engine failure**.\n- This follows a real incident where tape fragments were discovered in a spacer.\n\n**What must be done:**\n- Follow the manufacturer's official instructions (**Pierre Robin Service Bulletin No. 139**).\n- Complete the inspection **within 10 hours of flying time** after 22 June 1995.\n\n**Who it affects:**\n- Owners and operators of the specified Robin aircraft in Australia.\n- Maintenance engineers servicing these aircraft."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The text of the AD imposes a specific inspection requirement on the aircraft identified in the service bulletin. The instrument does not indicate any change from an original or broader intent; it sets a targeted inspection action and a short compliance timeframe (Applicability; Requirement; Compliance)."},"complexity_factors":["Narrow applicability limited to specific aircraft models and serial numbers (Applicability).","Single, short-term action required (one inspection) with a tight compliance window (10 hours TIS) (Compliance).","Substantive technical method delegated to an external service bulletin rather than set out in full in the AD (Requirement).","Reference to an overseas airworthiness directive (DGAC) for context but no separate alternative compliance path provided (Note).","Dependence on operators locating the correct serial-number list inside the referenced service bulletin (Applicability; Requirement)."],"plain_english_summary":"This AD mandates a one‑time inspection of the carburettor-to-air‑heater-box spacer on specific Pierre Robin DR400 and R2160 serial‑numbered aircraft, using Pierre Robin Service Bulletin No. 139, to be done within 10 hours TIS of the 22 June 1995 effective date.  \n\nIt was issued after adhesive tape was found in a spacer bore that could cause carburettor blockage and engine power loss; owners/operators bear inspection and repair costs."}},"importantCases":[],"_links":{"self":"/api/acts/ad-robin-22-carburettor-spacer","history":"/api/acts/ad-robin-22-carburettor-spacer/history","analysis":"/api/acts/ad-robin-22-carburettor-spacer/analysis","conflicts":"/api/acts/ad-robin-22-carburettor-spacer/conflicts","importantCases":"/api/acts/ad-robin-22-carburettor-spacer/important-cases","documents":"/api/acts/ad-robin-22-carburettor-spacer/documents"}}