{"id":"F2006B08660","name":"AD/CRESCO/1 - Nose Landing Gear Cylinder Assembly","slug":"ad-cresco-1-nose-landing-gear-cylinder-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":51751,"registerId":"commonwealth-F2006B08660-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \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.","sortOrder":0},{"sectionNumber":"AD/CRESCO/1 Nose Landing Gear Cylinder A","sectionType":"part","heading":"AD/CRESCO/1 Nose Landing Gear Cylinder Assembly 9/2000","content":"# AD/CRESCO/1 Nose Landing Gear Cylinder Assembly 9/2000\n\nApplicability: Cresco 08-600 series aircraft, with nose landing gear cylinder assemblies part number (P/N) 08-40035-5, fitted to aircraft serial numbers 017 through 026. Also, nose cylinder assemblies P/N 08-40051-2, S/N 027 through 082 supplied as spares. These assemblies were manufactured between March 1997 and March 2000.\n\nRequirement: Action in accordance with Pacific Aerospace Corporation Service Bulletin PACSB/CR/022.\n\nNote: New Zealand CAA AD DCA/CRESCO/1 refers.\n\nCompliance: Within 100 hours time in service after 7 September 2000.\n\nThis Airworthiness Directive becomes effective on 7 September 2000.\n\nBackground: The NZ CAA requires certain actions to prevent a propeller ground strike; in the event of full compression of the nose landing gear and a deflated or severely flattened tyre.\n\n![Signature of David Alan Villiers Delegate of the Civil Aviation Safety Authority](image.003.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 27 July 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 9 August 2000.","sortOrder":1}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific mechanical defect in specific aircraft. It has not expanded beyond its original safety purpose."},"complexity_factors":["Single, clearly defined applicability section (specific aircraft series, part numbers, and serial numbers)","Single requirement referencing an external technical document (Service Bulletin)","Simple compliance deadline (100 hours time in service after effective date)","No defined terms section, no cross-references to other legislation beyond the enabling regulation (CAR 1998 subreg 39.1(1))","Straightforward background explaining the unsafe condition","No conditional logic, exceptions, or nested provisions"],"plain_english_summary":"This AD requires owners/operators of specified Cresco 08-600 series aircraft (and certain spare nose cylinder assemblies) to inspect/repair nose landing gear cylinder assemblies (parts manufactured Mar 1997–Mar 2000) per Pacific Aerospace Service Bulletin PACSB/CR/022. It addresses a risk that a fully compressed nose gear with a deflated tyre could allow a propeller ground strike, risking loss of control or damage. Work must be done within 100 flight hours of 7 Sep 2000."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope has not been expanded or narrowed beyond the stated safety purpose. The AD applies to specifically identified Cresco 08‑600 series assemblies and spares and requires the service‑bulletin actions described to prevent propeller ground strike (see Applicability, Requirement, Background). It mirrors the referenced NZ CAA AD."},"complexity_factors":["Narrow applicability to specific part numbers and serial number ranges (Applicability) — requires operators to identify affected airframes and spares.","Mandates work by cross‑reference rather than specifying procedures in the AD (Requirement) — implementers must obtain and follow PACSB/CR/022.","Short compliance window measured in flight hours (Compliance) — scheduling maintenance within 100 hours may disrupt operations.","Reliance on a foreign regulator's AD for context (Note: New Zealand CAA AD DCA/CRESCO/1 refers) — adds an external reference to interpret purpose.","Mandatory legal basis under CAR 1998 subreg 39.1(1) and an effective date (effective 7 September 2000) — establishes enforceability and timing.","Serialised spare parts included (Applicability: spares P/N 08‑40051‑2 S/N 027–082) — tracking installed spares increases administrative burden."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Pacific Aerospace Cresco 08‑600 series aircraft fitted with certain nose landing‑gear cylinder assemblies to carry out the work specified in Pacific Aerospace Service Bulletin PACSB/CR/022 to prevent a propeller ground strike. Compliance is mandatory within 100 hours time‑in‑service after 7 September 2000; operators and maintenance organisations bear the cost and must follow the service bulletin instructions issued under CAR 1998 subreg 39.1(1)."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-cresco-1-nose-landing-gear-cylinder-assembly","history":"/api/acts/ad-cresco-1-nose-landing-gear-cylinder-assembly/history","analysis":"/api/acts/ad-cresco-1-nose-landing-gear-cylinder-assembly/analysis","conflicts":"/api/acts/ad-cresco-1-nose-landing-gear-cylinder-assembly/conflicts","importantCases":"/api/acts/ad-cresco-1-nose-landing-gear-cylinder-assembly/important-cases","documents":"/api/acts/ad-cresco-1-nose-landing-gear-cylinder-assembly/documents"}}