{"id":"F2006B05365","name":"AD/P68/39 - Fuel Selector Valve","slug":"ad-p68-39-fuel-selector-valve","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45926,"registerId":"commonwealth-F2006B05365-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/P68/39 - Fuel Selector Valve","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)  Partenavia P68 Series Aeroplanes\n\n \n\nAD/P68/39 Fuel Selector Valve 4/94 DM\n\nApplicability: All P68 series aircraft.\n\n \n\nRequirement: Unless previously carried out action in accordance with Partenavia Service Bulletin No 90.\n\n \n\nNote: RAI AD 94-014 refers.\n\n \n\nCompliance: Prior to 18 February 1994.\n\n \n\nBackground: The manufacturer has advised that loss of a key from a fuel selector keyway has been reported to them.\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":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive does not expand or narrow the class of affected aircraft from the statement in the instrument: it applies to all P68 series aircraft and mandates completion of the manufacturer’s Service Bulletin No. 90 by the stated date. There is no textual indication that the scope was altered from the instrument’s original corrective intent (Applicability) (Requirement) (Compliance)."},"complexity_factors":["Narrow and uniform applicability: applies only to all Partenavia P68 series aircraft (Applicability).","Single mandated remedy: compliance is achieved by performing the steps in one Service Bulletin (Requirement).","Fixed compliance deadline reduces procedural ambiguity but creates scheduling pressure (Compliance).","Dependence on an external technical document (Partenavia Service Bulletin No. 90) for precise work details increases operational dependency on manufacturer material (Requirement).","Reference to a related directive (RAI AD 94-014) creates a minor cross-reference that implementers must check (Note).","Administrative tasks (proving prior compliance, recording work) are required but routine for operators and maintenance organisations (Requirement) (Compliance)."],"plain_english_summary":"Owners and operators of Partenavia P68 series aeroplanes must carry out the inspection/modification in Partenavia Service Bulletin No. 90 (or show it was already done) by 18 February 1994. The directive responds to a reported loss of a fuel-selector key; the regulator enforces the deadline while owners pay for parts, labour and downtime. Compliance requires obtaining and following the Service Bulletin."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive addressing a specific mechanical defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating a manufacturer-recommended repair."},"complexity_factors":["Extremely short document (under 200 words)","Only 1 defined applicability criterion ('All P68 series aircraft')","Single, unconditional requirement with no exceptions or nested conditions","No cross-references to other legislation beyond a single service bulletin reference and a related AD note","Clear, fixed compliance date with simple 'unless already done' alternative","No interpretive provisions, definitions section, or procedural machinery"],"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) that requires aircraft owners to fix a specific mechanical problem.\n\n**What it does:** It orders owners of **Partenavia P68 series aircraft** to carry out a repair or inspection procedure described in \"Partenavia Service Bulletin No 90.\" This service bulletin addresses a problem where a **key from a fuel selector valve keyway has been reported lost** — essentially, a small mechanical component that helps control fuel flow could fall out or go missing, potentially causing fuel system problems.\n\n**Who it affects:** Anyone who owns or operates a Partenavia P68 series aeroplane in Australia.\n\n**What they must do:** Complete the required action **before 18 February 1994** (unless already done).\n\n**Why it matters:** A faulty fuel selector valve could lead to fuel starvation or improper fuel management, which creates serious flight safety risks. This AD ensures the problem is fixed before it causes an accident."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-39-fuel-selector-valve","history":"/api/acts/ad-p68-39-fuel-selector-valve/history","analysis":"/api/acts/ad-p68-39-fuel-selector-valve/analysis","conflicts":"/api/acts/ad-p68-39-fuel-selector-valve/conflicts","importantCases":"/api/acts/ad-p68-39-fuel-selector-valve/important-cases","documents":"/api/acts/ad-p68-39-fuel-selector-valve/documents"}}