{"id":"F2006B06673","name":"AD/ROTAX/7 - Fuel Pump P/N 996 592","slug":"ad-rotax-7-fuel-pump-p-n-996-592","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48655,"registerId":"commonwealth-F2006B06673-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ROTAX/7 - Fuel Pump P/N 996 592","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nRotax Piston Engines\n\nAD/ROTAX/7 Fuel Pump P/N 996 592 7/98\n\nApplicability: Rotax 912A, 912F model engines as detailed in Bombardier Rotax Technical Bulletin Number 912-20R1, and\n\nRotax 912UF model engines as detailed in Bombardier Rotax Technical Bulletin Number 1UL 98-D/E R1.\n\nRequirement: Replace the engine fuel pump and steel fuel line in accordance with the requirements of Bombardier Rotax Technical Bulletin Number 912-20R1 or 1UL 98-D/E R1 as applicable by engine model.\n\nNote: Austrian Airworthiness Directive Number 94/1 refers.\n\nCompliance: Within 100 hours time in service from issue of this directive, or at next repair of a leaking fuel pump, whichever occurs first.\n\nThis airworthiness directive becomes effective on 18 June 1998.\n\nBackground: This directive has been issued to require replacement of engine fuel pumps incorporating a steel fuel line. The requirement follows advice of fuel pumps with steel fuel lines connected may be susceptible to cracking at the fuel line to pump fittings. The cracks could result in fuel leaks.","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 fuel pump replacement for identified engine models."},"complexity_factors":["Single, specific mechanical component targeted (fuel pump P/N 996 592)","Only three engine models affected, clearly identified by technical bulletin reference","One straightforward compliance action (replacement) with clear deadline alternatives","No defined terms section, no cross-references to other legislation beyond technical bulletins","Background explanation included, making intent transparent","Total length: approximately 150 words"],"plain_english_summary":"CASA orders owners/operators of aircraft with Rotax 912A, 912F and 912UF engines using fuel pump P/N 996 592 to replace that pump and the associated steel fuel lines per the Rotax/Bombardier service instructions. \n\nReplacement must occur within 100 flight hours or immediately if the pump is leaking; compliance is mandatory to prevent fuel leaks that could cause fire or explosion and to maintain legal airworthiness."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive's scope matches its stated objective—requiring replacement of fuel pumps with steel fuel lines on the listed Rotax models to address cracking and fuel-leak risk. It does not expand applicability or obligations beyond those engine models and the manufacturer bulletins referenced."},"complexity_factors":["Narrow technical scope: single component (fuel pump and steel fuel line) replacement","Clear, short compliance timeframe (within 100 hours TIS or at next repair)","Applicability limited to specific engine models (Rotax 912A/912F/912UF) referenced to manufacturer technical bulletins","Procedural details delegated to Bombardier Rotax technical bulletins (operational dependence on manufacturer guidance)","Compliance imposes direct cost and downtime on aircraft owners/operators (parts, labour, possible grounding)","Potential supply-chain risk for obtaining replacement pumps/lines","Low regulatory discretion: mandatory action specified by the directive"],"plain_english_summary":"Requires replacement of specified Rotax engine fuel pumps and their steel fuel lines because steel lines can crack at the fitting and cause fuel leaks. It applies to aircraft fitted with Rotax 912A, 912F and 912UF engines as referenced in the manufacturer technical bulletins.\n\nAircraft owners/operators pay for parts and labour. The Civil Aviation Safety Authority (CASA) mandates compliance: replace within 100 hours time-in-service or at the next repair of a leaking pump. The directive is prescriptive and intended to reduce the risk of fuel leaks."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rotax-7-fuel-pump-p-n-996-592","history":"/api/acts/ad-rotax-7-fuel-pump-p-n-996-592/history","analysis":"/api/acts/ad-rotax-7-fuel-pump-p-n-996-592/analysis","conflicts":"/api/acts/ad-rotax-7-fuel-pump-p-n-996-592/conflicts","importantCases":"/api/acts/ad-rotax-7-fuel-pump-p-n-996-592/important-cases","documents":"/api/acts/ad-rotax-7-fuel-pump-p-n-996-592/documents"}}