{"id":"F2006B05380","name":"AD/P68/52 - Fuel Selector Control","slug":"ad-p68-52-fuel-selector-control","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45973,"registerId":"commonwealth-F2006B05380-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)\n\nPartenavia P68 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/P68/52 Fuel Selector Control 12/2002","sectionType":"part","heading":"AD/P68/52 Fuel Selector Control 12/2002","content":"# AD/P68/52 Fuel Selector Control 12/2002\n\nApplicability: All Partenavia P68 series aircraft.\n\nRequirement: Carry out inspection of the fuel selector valve control system in accordance with VulcanAir Service Bulletin SB 113.\n\nNote: Italian AD 2002-415 refers.\n\nCompliance: 1. Unless previously carried out; within 50 flight hours or three months from the effective date of this Directive, whichever comes first; and\n\n    2. Thereafter at 100 flight hour intervals; and\n\n    3. Whenever any the following conditions become evident:\n\n    Cabin fuel selector is stiff and difficult to operate\n\n    b. Detents indicating the correct valve positions are not clearly evident.\n    c. Abnormal fuel level readings between tanks that cannot be attributed to different engine fuel consumption as indicated by the fuel flow gauge, or to evident fuel leakage\n    d. Uncommanded fuel transfer between tanks in cases where the aircraft has been parked on an unlevelled surface.\n\nThis Airworthiness Directive becomes effective on 28 November 2002.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope: addressing a specific unsafe condition in the fuel selector control system of Partenavia P68 aircraft. It has not expanded beyond this safety-critical maintenance requirement."},"complexity_factors":["Short, single-purpose directive with one main requirement","Only 4 defined trigger conditions for immediate inspection (items a-d)","Simple compliance structure: initial deadline + recurring interval + conditional triggers","Single cross-reference to external document (VulcanAir Service Bulletin SB 113) and one reference to Italian AD 2002-415","No nested exceptions or complex conditional logic","Clear applicability (all Partenavia P68 series aircraft — no model number parsing required)"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of Partenavia P68 series aircraft to inspect the fuel selector valve control system to prevent fuel starvation, leaks, or engine failure. Initial inspection is due within 50 flight hours or 3 months, then every 100 hours, with additional checks if controls stiffen, detents blur, or fuel levels/transfer behave abnormally.  \n\nComply using the inspection/repair steps in VulcanAir Service Bulletin SB 113."},"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":false,"description":"The Directive's scope is limited and explicit: it applies to all Partenavia P68 series aircraft and mandates inspection of the fuel selector control per VulcanAir SB 113 (Applicability; Requirement). Nothing in the text expands or narrows that applicability beyond the stated fleet or the inspection and recurrence conditions (Compliance; Note)."},"complexity_factors":["Universal applicability to all Partenavia P68 series (Applicability) — increases administrative reach and fleet-wide compliance.","Mandated inspection tied to an external document (VulcanAir Service Bulletin SB 113) (Requirement) — requires access to and reliance on non-legislative technical instructions.","Multiple timing rules: initial deadline (50 flight hours or 3 months), recurring 100 flight-hour intervals, plus symptom-triggered inspections (Compliance) — creates mixed periodic and event-driven obligations.","Subjective trigger criteria (e.g. 'stiff', 'detents not clearly evident', 'abnormal fuel level readings', 'uncommanded fuel transfer') (Compliance) — raises interpretation and enforcement uncertainty for inspectors and operators.","Ongoing compliance burden on operators and owners (Maintenance costs, downtime) (Requirement/Compliance) — who pays: aircraft owners/operators bear inspection and rectification costs.","Reference to a foreign AD (Italian AD 2002-415) (Note) — indicates cross-jurisdictional coordination but no additional domestic detail.","Delegated enforcement under CAR 1998 subregulation 39.1(1) (header) — shows regulator discretion to require corrective action but relies on the specified SB for technical detail."],"plain_english_summary":"This Directive requires owners/operators of all Partenavia P68 aircraft to have the fuel selector valve control system inspected following VulcanAir Service Bulletin SB 113. It sets an initial inspection deadline (50 flight hours or three months) and recurring checks (every 100 flight hours) and requires inspections when certain symptoms appear. The stated purpose is to correct an unsafe condition in the fuel selector system; compliance imposes recurring inspection costs and operational scheduling impacts on aircraft operators."}},"importantCases":[],"_links":{"self":"/api/acts/ad-p68-52-fuel-selector-control","history":"/api/acts/ad-p68-52-fuel-selector-control/history","analysis":"/api/acts/ad-p68-52-fuel-selector-control/analysis","conflicts":"/api/acts/ad-p68-52-fuel-selector-control/conflicts","importantCases":"/api/acts/ad-p68-52-fuel-selector-control/important-cases","documents":"/api/acts/ad-p68-52-fuel-selector-control/documents"}}