{"id":"F2006B05861","name":"AD/PA-32/64 - Fuel Flow Indicator Line - Replacement","slug":"ad-pa-32-64-fuel-flow-indicator-line-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135885,"registerId":"commonwealth-F2006B05861-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-32/64 - Fuel Flow Indicator Line - Replacement","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-32 (Cherokee Six) Series Aeroplanes\n\n \n\nAD/PA-32/64 Fuel Flow Indicator Line - Replacement 9/79\n\nApplicability: Model PA-32RT-300T with S/Nos. 32R-7887001 to 32R-7987124. Document:  1. Piper SB No. 652; or\n\n2. FAA AD 79-13-04, Amendment 39-3500.\n\n \n\nCompliance: Within 25 hours time in service after 19 July 1979.\n\n \n\nBackground: There are overseas reports of broken fuel flow indicator lines which have resulted in fuel leakage, engine power loss and one instance of a forced landing.\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, targeted safety directive addressing a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of mandating replacement of faulty fuel lines."},"complexity_factors":["Very short document (approximately 150 words)","Only 2 defined applicability criteria (model and serial number range)","Single, unambiguous compliance requirement (replace the line within 25 hours)","No cross-references to other legislation or regulations beyond the two technical documents","No conditional logic or exceptions","Straightforward cause-and-effect background explanation"],"plain_english_summary":"**What this is:** This is an Airworthiness Directive (AD) — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) that requires aircraft owners to fix a specific mechanical problem.\n\n**What it does:** It orders owners of specific Piper PA-32RT-300T aircraft (serial numbers 32R-7887001 to 32R-7987124) to replace their fuel flow indicator lines. These are the tubes that show the pilot how much fuel is flowing to the engine.\n\n**Why it matters:** Overseas, these lines have been breaking, causing fuel to leak out, engines to lose power, and in one case, forcing a pilot to make an emergency landing. This directive prevents that dangerous situation by requiring the faulty lines be swapped out.\n\n**Who must comply:** Anyone who owns or operates one of these specific Piper Cherokee Six aircraft models.\n\n**When:** The replacement had to be done within 25 hours of flying time after 19 July 1979.\n\n**How to comply:** Follow either Piper Service Bulletin No. 652 or the equivalent American FAA directive (AD 79-13-04)."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The text sets a specific corrective action (replacement of the fuel flow indicator line) for a defined set of aircraft, references the procedural documents to be followed, and imposes a fixed compliance deadline. There is no statement within the instrument that changes or expands that original corrective scope; the directive remains limited to the specified serial-numbered PA-32RT-300T aircraft and the single maintenance action described (Applicability; Document; Compliance; Background)."},"complexity_factors":["Narrow applicability limited to a defined serial-number range (Applicability)","Single mandated action (replacement of fuel flow indicator line) with a short compliance timeframe (Compliance)","Dependence on external technical documents (Piper SB No. 652 or FAA AD 79-13-04) for procedural detail (Document)","Requires coordination of parts, maintenance labour and aircraft downtime (implied by Compliance and Document)","Regulatory provenance under Civil Aviation Regulations / CASA which imposes mandatory compliance (header)"],"plain_english_summary":"This airworthiness directive requires owners/operators of specified Piper PA‑32RT‑300T serial numbers to replace the fuel‑flow indicator line per Piper Service Bulletin No. 652 or FAA AD 79‑13‑04 within 25 hours’ time‑in‑service after 19 July 1979. It’s mandatory maintenance aimed at preventing reported fuel leaks and engine power loss; operators pay for and must schedule the urgent work, with compliance dependent on access to the referenced documents and parts."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-64-fuel-flow-indicator-line-replacement","history":"/api/acts/ad-pa-32-64-fuel-flow-indicator-line-replacement/history","analysis":"/api/acts/ad-pa-32-64-fuel-flow-indicator-line-replacement/analysis","conflicts":"/api/acts/ad-pa-32-64-fuel-flow-indicator-line-replacement/conflicts","importantCases":"/api/acts/ad-pa-32-64-fuel-flow-indicator-line-replacement/important-cases","documents":"/api/acts/ad-pa-32-64-fuel-flow-indicator-line-replacement/documents"}}