{"id":"F2006L03199","name":"AD/CONVAIR/28 - Pressure Refuelling System","slug":"ad-convair-28-pressure-refuelling-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":60510,"registerId":"commonwealth-F2006L03199-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Kelowna Flightcraft (General Dynamics/Co","sectionType":"division","heading":"Kelowna Flightcraft (General Dynamics/Convair) Series Aeroplanes","content":"### Kelowna Flightcraft (General Dynamics/Convair) Series Aeroplanes\n\n| AD/CONVAIR/28 | Pressure Refuelling System | 11/2006 |\n| ------------- | -------------------------- | ------- |\n\n| Applicability: | GENERAL DYNAMICS Model 240/340/440 aeroplanes using turbo-propeller power which has been modified to incorporate underwing pressure fuelling per STC Nos. SA1316WE, SA1132WE, SA1096WE or SA1054WE.             |\n| -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with FAA AD 67-33-03.Note: FAA AD 67-33-03 Amdt. 39-528 refers.                                                                                                                            |\n| Compliance:    | As detailed in FAA AD 67-33-03 with a revised effective date of 26 October 2006.                                                                                                                                |\n|                | This Airworthiness Directive becomes effective on 26 October 2006.                                                                                                                                              |\n| Background:    | Over pressurization of the wing fuel tank in affected aeroplane types have been attributed to failure of the upper and lower diaphragm assemblies in the pressure fuelling valves (P/N 2640644 or P/N 2650198). |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n13 September 2006","sortOrder":0},{"sectionNumber":"AD/CONVAIR/28","sectionType":"part","heading":"AD/CONVAIR/28","content":"## AD/CONVAIR/28","sortOrder":1},{"sectionNumber":"Pressure Refuelling System","sectionType":"part","heading":"Pressure Refuelling System","content":"## Pressure Refuelling System","sortOrder":2},{"sectionNumber":"11/2006","sectionType":"part","heading":"11/2006","content":"## 11/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"CASA adopted the requirements of FAA AD 67-33-03 for the specified Convair-modified aeroplanes. The instrument records a revised effective date (26 October 2006) but does not alter applicability or technical requirements as stated; the scope remains the FAA AD's remit applied to the listed models and STCs."},"complexity_factors":["Cross-reference dependency: the directive requires compliance with an external FAA AD (FAA AD 67-33-03, Amdt. 39-528), creating reliance on a foreign instrument for technical detail and remedy.","Technical specificity: safety-critical hardware identified by part numbers (P/N 2640644, P/N 2650198) and diaphragm assembly failure modes require technical inspections/repairs.","Narrow applicability: applies only to Model 240/340/440 aeroplanes modified under listed STCs (SA1316WE, SA1132WE, SA1096WE, SA1054WE), limiting the regulated population but requiring operators to check STC status.","Compliance timing: the instrument adopts a revised effective date (26 October 2006), which fixes the compliance start and can affect scheduling of inspections/repairs.","Operator burden: affected operators must implement the inspection/repair regime specified in the FAA AD, shifting practical cost and logistical responsibility to aircraft owners/operators.","Regulatory adoption: CASA formalised the requirement by directive (signed by a delegate), removing discretion at the operator level about whether to follow the FAA AD for these aircraft."],"plain_english_summary":"This Airworthiness Directive requires operators of General Dynamics Model 240/340/440 turboprop aeroplanes modified for underwing pressure refuelling (per STCs SA1316WE, SA1132WE, SA1096WE or SA1054WE) to comply with FAA AD 67-33-03 (Amdt. 39-528), adopted by CASA with an effective date of 26 October 2006. The FAA AD addresses failures of the upper and lower diaphragm assemblies in pressure refuelling valves (P/N 2640644 or 2650198) that can over‑pressurise wing tanks; affected operators must carry out the inspections and repairs required by the FAA AD."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow airworthiness directive addressing a specific mechanical defect in specific aircraft models. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 2 defined technical references (FAA AD 67-33-03 and the four STC numbers)","No nested conditional logic or exceptions","Single compliance pathway: follow the referenced FAA directive","Clear, unambiguous applicability criteria using specific model numbers and modification identifiers","No cross-references to other Australian legislation or regulations beyond the implicit Civil Aviation Act framework"],"plain_english_summary":"This AD mandates that owners/operators of Convair Model 240, 340 and 440 aeroplanes fitted with certain underwing pressure-fuelling modifications comply with FAA AD 67-33-03 (as amended) to address faulty diaphragms in pressure-fuelling valves that can over-pressurise wing fuel tanks. \n\nEffective 26 October 2006, the measure forces inspection/repair to prevent tank damage, fuel leaks or fire."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-convair-28-pressure-refuelling-system","history":"/api/acts/ad-convair-28-pressure-refuelling-system/history","analysis":"/api/acts/ad-convair-28-pressure-refuelling-system/analysis","conflicts":"/api/acts/ad-convair-28-pressure-refuelling-system/conflicts","importantCases":"/api/acts/ad-convair-28-pressure-refuelling-system/important-cases","documents":"/api/acts/ad-convair-28-pressure-refuelling-system/documents"}}