{"id":"F2007L02361","name":"AD/CF34/12 Amdt 1 - Main Fuel Pump Fuel Inlet Strainer","slug":"ad-cf34-12-amdt-1-main-fuel-pump-fuel-inlet-strainer","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":67695,"registerId":"commonwealth-F2007L02361-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"General Electric Turbine Engines - CF34 ","sectionType":"division","heading":"General Electric Turbine Engines - CF34 Series","content":"### General Electric Turbine Engines - CF34 Series\n\n| AD/CF34/12 Amdt 1 | Main Fuel Pump Fuel Inlet Strainer | 9/2007 |\n| ----------------- | ---------------------------------- | ------ |\n\n| Applicability: | General Electric Company (GE) CF34-10E2A1, -10E5, -10E5A1, -10E6, -10E6A1, and -10E7 turbofan engines, with main fuel pump (MFP) part number (P/N) 2043M12P03, P/N 2043M12P04, P/N 837600-3, and P/N 837600-4 installed.Note 1: These engines are installed on, but not limited to, EmbraerERJ 190-100-STD, ERJ 190-100-LR, and ERJ 190-100-IGW aeroplanes.                                                                                                                                                                                                                                           |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Remove MFPs, P/Ns 2043M12P03, 2043M12P04, 837600-3, and 837600-4 from service and install a serviceable MFP.Note 2: GE Service Bulletin No. CF34-10E S/B 73-0013, dated 15 December 2006, pertains to the subject of this AD.DefinitionFor the purpose of this AD, a serviceable MFP is one that does not have P/N 2043M12P03, 2043M12P04, 837600-3 or 837600-4.Note 3: CASA recommends that operators avoid performing the actions in this AD on both engines installed on the same aeroplane at the same time, if at all possible.Note 4: FAA AD 2007-12-15 Amdt 39-15903 dated 1 June 2007 refers. |\n| Compliance:    | Not later than 30 September 2007.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |\n|                | This Amendment becomes effective on 30 August 2007.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |\n| Background:    | This AD results from GE determining that the cause of MFP fuel strainer failure is a design problem with the strainer. The issuing of this AD is to prevent engine in-flight shutdown due to MFP malfunctions.                                                                                                                                                                                                                                                                                                                                                                                        |\n\n|     | This amendment requires the replacement of the filter with an improved part. |\n| --- | ---------------------------------------------------------------------------- |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n25 June 2007","sortOrder":0},{"sectionNumber":"AD/CF34/12 Amdt 1","sectionType":"part","heading":"AD/CF34/12 Amdt 1","content":"## AD/CF34/12 Amdt 1","sortOrder":1},{"sectionNumber":"Main Fuel Pump Fuel Inlet Strainer","sectionType":"part","heading":"Main Fuel Pump Fuel Inlet Strainer","content":"## Main Fuel Pump Fuel Inlet Strainer","sortOrder":2},{"sectionNumber":"9/2007","sectionType":"part","heading":"9/2007","content":"## 9/2007","sortOrder":3}],"analysis":{"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"No. The directive’s scope aligns with the stated safety purpose: remove and replace identified MFP part numbers on specified CF34-10E engines to address a fuel strainer design problem and prevent in‑flight shutdown, with no broader obligations introduced in the text."},"complexity_factors":["Targeted technical requirement: mandatory removal and replacement of four specific MFP part numbers (2043M12P03, 2043M12P04, 837600-3, 837600-4).","Narrow applicability: only GE CF34-10E series engines (affects aircraft such as Embraer ERJ 190 variants).","Fixed compliance date: must be completed by 30 September 2007, creating a time-bound operational and supply constraint.","Operational recommendation: CASA advises avoiding performing the action on both engines of the same aeroplane simultaneously, affecting maintenance sequencing.","Dependence on alternative supply: requirement to install a “serviceable MFP” creates potential procurement and inventory issues for operators.","Cross-references to manufacturer service bulletin (GE S/B CF34-10E 73-0013) and FAA AD 2007-12-15, adding steps for technical compliance and traceability."],"plain_english_summary":"This airworthiness directive orders operators of GE CF34-10E series engines fitted with main fuel pumps P/N 2043M12P03, 2043M12P04, 837600-3 or 837600-4 to remove those pumps from service and install a serviceable replacement by 30 September 2007. \n\nCASA describes the change as addressing a fuel inlet strainer design defect to prevent engine in‑flight shutdown. Operators pay for replacements, must manage parts availability and scheduling, and are advised not to carry out the action on both engines of an aeroplane at the same time where possible."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is an amendment to an existing Airworthiness Directive (AD/CF34/12), but it does not expand scope beyond the original safety purpose. It maintains the same focus (main fuel pump strainer failures) and simply updates the required action or compliance approach. The amendment remains tightly scoped to the specific mechanical defect and affected engine models."},"complexity_factors":["Single, specific mechanical directive with one clear action (replace part)","Only 4 specific part numbers identified for removal","Straightforward applicability section limited to specific engine models","Single compliance date with no conditional thresholds or phased implementation","Minimal cross-referencing (only one related service bulletin and one FAA AD noted for reference)","No nested definitions or complex conditional logic","Short document length (approximately 300 words of substantive content)"],"plain_english_summary":"CASA requires replacement of defective main fuel pumps on General Electric CF34-10E engines used on Embraer 190s to prevent fuel inlet strainer failure that can cause in‑flight engine shutdowns. The mandatory AD affects operators and maintenance crews; all specified pumps must be replaced by 30 September 2007. CASA advises avoiding simultaneous pump replacement on both engines of the same aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cf34-12-amdt-1-main-fuel-pump-fuel-inlet-strainer","history":"/api/acts/ad-cf34-12-amdt-1-main-fuel-pump-fuel-inlet-strainer/history","analysis":"/api/acts/ad-cf34-12-amdt-1-main-fuel-pump-fuel-inlet-strainer/analysis","conflicts":"/api/acts/ad-cf34-12-amdt-1-main-fuel-pump-fuel-inlet-strainer/conflicts","importantCases":"/api/acts/ad-cf34-12-amdt-1-main-fuel-pump-fuel-inlet-strainer/important-cases","documents":"/api/acts/ad-cf34-12-amdt-1-main-fuel-pump-fuel-inlet-strainer/documents"}}