{"id":"F2006B05621","name":"AD/PA-28/64 - Fuel Line - Inspection","slug":"ad-pa-28-64-fuel-line-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135268,"registerId":"commonwealth-F2006B05621-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-28/64 - Fuel Line - Inspection","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Piper PA-28 Series Aeroplanes\n\n \n\nAD/PA-28/64 Fuel Line - Inspection 7/77\n\nApplicability: Model PA-28-235 with S/Nos. 28-10001 to 28-7710040. Document:  Piper SB No. 571, Part D.\n\nCompliance: Within 100 hours time in service after 31 July 1977.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue safety directive focused specifically on fuel line inspection for one aircraft model variant. It has not expanded beyond its original narrow technical purpose."},"complexity_factors":["Extremely short document (under 150 words)","Only 3 operative provisions: applicability, document reference, and compliance deadline","No defined terms section — uses plain aircraft terminology","Single cross-reference to external technical document (Piper SB 571)","No conditional logic, exceptions, or nested provisions","Linear structure with clear subject-action-deadline format"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it does:** It requires owners and operators of specific Piper PA-28-235 aircraft to **inspect their fuel lines** for defects or problems.\n\n**Who it affects:** \n- **Aircraft owners/operators** of Piper PA-28-235 model planes\n- **Specific serial numbers only:** 28-10001 through 28-7710040 (a particular production batch)\n\n**What must be done:**\n- Follow the inspection procedures in **Piper Service Bulletin No. 571, Part D** (a technical document from the manufacturer)\n- Complete the inspection **within 100 hours of flying time** after 31 July 1977\n\n**Why it matters:** Fuel line failures can cause engine stoppage or fires. This directive prevents accidents by catching potential fuel system defects before they cause catastrophic failure. Non-compliance grounds the aircraft (makes it illegal to fly).\n\n**Key point:** This is a **time-limited safety mandate** — not optional maintenance advice. It carries legal force under Commonwealth aviation law."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The supplied text shows a narrowly scoped, one-time inspection requirement for PA-28-235 aircraft within the listed serial-number range and a fixed compliance window. There is no indication in the supplied instrument that the scope was expanded or otherwise altered from its original stated requirement (see Applicability and Compliance)."},"complexity_factors":["Narrow applicability limited to a specific model and defined serial-number range (Applicability).","Single, time-limited compliance action (one inspection within 100 hours after 31 July 1977) rather than ongoing or repeated obligations (Compliance).","Delegation of technical procedure to an external manufacturer document (Piper SB No. 571, Part D) increases the steps required to comply because the AD does not contain the inspection detail itself (Document).","Historical/date-based compliance window requires calculating accumulated time-in-service relative to the specified date (Compliance).","Enforcement and legal effect arise from CASA’s Schedule of Airworthiness Directives framework, requiring regulatory familiarity to execute compliance and record-keeping (Header)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Piper PA-28-235 aircraft (serials 28-10001 to 28-7710040) to carry out the Piper Service Bulletin No. 571, Part D fuel-line inspection within 100 hours TIS after 31 July 1977. Issued under CASA, the AD delegates procedural detail to the manufacturer’s bulletin; affected operators bear inspection and repair costs and must schedule and document compliance for regulatory oversight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-28-64-fuel-line-inspection","history":"/api/acts/ad-pa-28-64-fuel-line-inspection/history","analysis":"/api/acts/ad-pa-28-64-fuel-line-inspection/analysis","conflicts":"/api/acts/ad-pa-28-64-fuel-line-inspection/conflicts","importantCases":"/api/acts/ad-pa-28-64-fuel-line-inspection/important-cases","documents":"/api/acts/ad-pa-28-64-fuel-line-inspection/documents"}}