{"id":"F2006B06137","name":"AD/PC-6/33 - Lifting Sling and Aircraft Lifting Points - Limitations","slug":"ad-pc-6-33-lifting-sling-and-aircraft-lifting-points-limitations","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46921,"registerId":"commonwealth-F2006B06137-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PC-6/33 - Lifting Sling and Aircraft Lifting Points - Limitations","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)  Pilatus Porter PC-6 Series Aeroplanes\n\n \n\nAD/PC-6/33  Lifting Sling and Aircraft Lifting Points - Limitations\n\n\n8/71\n\n \n\nApplicability: All models. Document: Pilatus SB No. 010.\n\nCompliance: Within 100 hours time in service after 30 September 1971.\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 airworthiness directive from 1971 addressing a specific safety concern (lifting sling limitations). It has not expanded beyond its original narrow scope of ensuring safe lifting operations for PC-6 aircraft."},"complexity_factors":["Extremely short document (approximately 150 words)","Only 3 operative provisions: applicability, document reference, and compliance deadline","No defined terms section","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Single condition (compliance deadline based on flight hours)","No exceptions, exemptions, or nested conditional logic"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety notice issued by Australia's Civil Aviation Safety Authority (CASA) for aircraft.\n\n**What it does:**\n- Requires owners and operators of **Pilatus Porter PC-6 series aeroplanes** (a type of Swiss-made utility aircraft popular in Australia for bush flying, skydiving, and cargo work) to follow specific limitations regarding **lifting slings and aircraft lifting points**.\n- A \"lifting sling\" is a strap or cable assembly used to hoist or lift the aircraft (for example, during maintenance or recovery operations). \"Lifting points\" are the reinforced parts of the airframe where these slings attach.\n\n**Who it affects:**\n- Anyone who owns, operates, or maintains a Pilatus PC-6 aircraft in Australia.\n\n**Why it matters:**\n- Lifting an aircraft incorrectly can damage the airframe, cause structural failure, or lead to the aircraft being dropped. This directive ensures everyone follows the manufacturer's updated safety instructions (Pilatus Service Bulletin No. 010) to prevent accidents during lifting operations.\n\n**What must be done:**\n- Operators had to comply with the manufacturer's service bulletin within **100 hours of flying time** after **30 September 1971**.\n\n**Key point:** This is a historical directive from 1971. While it shows the regulatory framework, compliance deadlines have long passed. Current operators would need to verify this directive was complied with in the aircraft's maintenance records."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The source provides no indication that the AD’s scope has been changed from its original formulation. It explicitly states applicability to all Pilatus PC-6 models and delegates technical detail to Pilatus SB No. 010, with a single compliance timeframe. There is no textual evidence in the instrument provided that the scope (who must comply or what is required) was altered."},"complexity_factors":["Very short directive text with a single, clear applicability statement (\"Applicability: All models\").","Substantive technical requirements are deferred to an external document (Pilatus SB No. 010), creating dependence on the SB for details.","Single, specific compliance deadline (within 100 hours time in service after 30 September 1971) reduces procedural complexity but introduces a historical timing constraint.","Limited information on enforcement, penalties or specific technical measures in the AD itself increases operational reliance on the regulatory framework and the SB.","Historic date and brief format may require archival or SB consultation to determine current relevance or exact actions."],"plain_english_summary":"This AD requires owners/operators of all Pilatus PC‑6 models to apply the lifting sling and aircraft lifting‑point limitations specified in Pilatus Service Bulletin No. 010, with compliance due within 100 hours TIS after 30 September 1971. \n\nThe directive shifts technical detail to the manufacturer’s SB, imposes direct compliance costs on operators, and relies on the broader regulatory framework for enforcement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pc-6-33-lifting-sling-and-aircraft-lifting-points-limitations","history":"/api/acts/ad-pc-6-33-lifting-sling-and-aircraft-lifting-points-limitations/history","analysis":"/api/acts/ad-pc-6-33-lifting-sling-and-aircraft-lifting-points-limitations/analysis","conflicts":"/api/acts/ad-pc-6-33-lifting-sling-and-aircraft-lifting-points-limitations/conflicts","importantCases":"/api/acts/ad-pc-6-33-lifting-sling-and-aircraft-lifting-points-limitations/important-cases","documents":"/api/acts/ad-pc-6-33-lifting-sling-and-aircraft-lifting-points-limitations/documents"}}