{"id":"F2006B06658","name":"AD/ROTAX/11 - Fuel Pump Replacement","slug":"ad-rotax-11-fuel-pump-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48596,"registerId":"commonwealth-F2006B06658-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\nRotax Piston Engines","sortOrder":0},{"sectionNumber":"AD/ROTAX/11 Fuel Pump Replacement 4/2002","sectionType":"part","heading":"AD/ROTAX/11 Fuel Pump Replacement 4/2002","content":"# AD/ROTAX/11 Fuel Pump Replacement 4/2002\n\nApplicability: Rotax 912A, 912F and 912S series engines detailed by serial number in Rotax Service Bulletin SB-912-031 and incorporating a Rotax fuel pump assembly part number (P/N) 996 596.\n\nRequirement: In accordance with instructions detailed in Rotax Service Bulletin SB-912-031, carry out:\n\n    An inspection of the fuel pump assembly for cracks; and\n\n    2. a leak check of the fuel pump assembly; and\n\nif in complying with Items 1 or 2, the fuel pump or associated plumbing has been disturbed, carry out an engine test run.\n\nNote: Austrian AD 109 refers.\n\nCompliance: Within 10 hours time in service from when this Directive is effective and thereafter at intervals not to exceed 110 hours time in service.\n\nThis Airworthiness Directive becomes effective on 18 April 2002.\n\nBackground: This Directive has been issued to address reports of fuel leaks at the Rotax supplied fuel pump and fuel pump hose connections. Fuel leaks may result in an engine fire.\n\n![Signature of Eugene Paul Holzapfel Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 10 March 2002\n\n![](image.001.png)","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains targeted to Rotax 912A/F/S engines fitted with fuel pump P/N 996 596 and mandates inspection, leak check and conditional engine test runs per Rotax Service Bulletin SB-912-031 to address reported fuel leaks (Applicability; Requirement; Background). No expansion or narrowing beyond those elements appears in the text."},"complexity_factors":["Narrow technical applicability to specific engine models and a single pump part number (Applicability)","Dependency on external manufacturer instructions: compliance ‘in accordance with Rotax Service Bulletin SB-912-031’ (Requirement)","Recurring compliance schedule with a short initial window (10 hours) and repeating interval (110 hours) that can affect operational planning (Compliance)","Conditional additional step (engine test run) if plumbing is disturbed, adding possible labour/time variability (Requirement)","Regulatory authority and legal basis are straightforward—CASA delegate under CAR 1998 subregulation 39.1(1) (preamble/signature)"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Rotax 912A, 912F and 912S engines fitted with fuel pump assembly P/N 996 596 to inspect the pump for cracks, perform a leak check and, if plumbing is disturbed, carry out an engine test run per Rotax Service Bulletin SB‑912‑031. Compliance is within 10 hours time-in-service and then every 110 hours. (Applicability; Requirement; Compliance.)\n\nIt responds to reported fuel leaks that may cause engine fire; owners/operators bear inspection, test and replacement costs, and CASA issued the AD under CAR 1998 subregulation 39.1(1). (Background.)"},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific mechanical defect in specific engine models. It has not expanded beyond its original purpose of preventing fuel leak-related engine fires."},"complexity_factors":["Single, specific mechanical issue (fuel pump cracks/leaks)","Only 3 defined actions required (inspection, leak check, conditional test run)","Clear applicability criteria (specific engine models and part numbers)","Simple compliance timeline (10 hours initial, 110 hours recurring)","No nested exceptions or conditional logic beyond one 'if' clause","References only one external document (Rotax Service Bulletin SB-912-031) and one related Austrian AD","Total length: approximately 300 words"],"plain_english_summary":"This CASA safety order requires owners/operators of aircraft with specified Rotax 912A/F/S engines and the listed fuel pump P/N to inspect for and replace faulty fuel pumps and hoses to prevent fuel leaks. \n\nIt mandates an initial check within 10 flight hours and recurring checks every 110 hours; it’s legally binding because fuel leaks can cause engine fires, and non‑compliance grounds the aircraft from flying."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rotax-11-fuel-pump-replacement","history":"/api/acts/ad-rotax-11-fuel-pump-replacement/history","analysis":"/api/acts/ad-rotax-11-fuel-pump-replacement/analysis","conflicts":"/api/acts/ad-rotax-11-fuel-pump-replacement/conflicts","importantCases":"/api/acts/ad-rotax-11-fuel-pump-replacement/important-cases","documents":"/api/acts/ad-rotax-11-fuel-pump-replacement/documents"}}