{"id":"F2006B04048","name":"AD/BEECH 56/18 - Flight Controls","slug":"ad-beech-56-18-flight-controls","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43665,"registerId":"commonwealth-F2006B04048-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 56/18 - Flight Controls","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)  Beechcraft 56TC (Turbo Baron) Series Aeroplanes\n\n \n\nAD/BEECH 56/18 Flight Controls 1/79\n\nApplicability: All model 56TC with S/Nos. TG-78 to TG-83; and all 56 series fitted with rudder and/or elevators shipped from Beech during period 1 May 1973 to 1 July 1976.\n\n \n\nRequirement: Action in accordance with Beechcraft SI No. 0629-150, Rev. 11. Compliance:  Within 100 hours’ time in service after 31 January 1979.\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 AD as presented sets a clear, limited scope: specific 56TC serial numbers (TG-78 to TG-83) and all 56 series aeroplanes fitted with rudder and/or elevators shipped from Beech between 1 May 1973 and 1 July 1976. The text provides no indication that this scope was altered from the instrument’s original intent; the mandate is confined to those aircraft and to following Beechcraft SI No. 0629-150, Rev. 11 within the stated compliance period (Applicability; Requirement; Compliance)."},"complexity_factors":["Narrow, specific applicability by serial numbers and shipment date reduces scope complexity (Applicability).","Technical work is delegated to an external document (Beechcraft SI No. 0629-150, Rev. 11), so the AD’s legal text is short but operational complexity depends on the service instruction (Requirement).","Fixed compliance window tied to hours in service after a calendar date creates operational scheduling complexity for operators, especially given the historical deadline (Compliance).","Enforcement rests with the Civil Aviation Safety Authority framework; implementing the technical actions requires certified maintenance capability and possible parts sourcing.","Document is brief and self-contained about the mandate but relies on another technical document for substantive steps, creating a two-document compliance path."],"plain_english_summary":"This Airworthiness Directive makes Beechcraft Service Instruction No. 0629-150 (Rev. 11) mandatory for certain Beechcraft Model 56/56TC aeroplanes—specifically TG-78 to TG-83 and 56-series aircraft fitted with rudder/elevators shipped 1 May 1973–1 July 1976—requiring the prescribed flight‑control work within 100 flight hours after 31 Jan 1979. Owners/operators must pay for parts, labour and downtime; CASA issues and enforces the AD while the service instruction prescribes the technical actions."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive targeting a specific manufacturing defect in a limited population of aircraft. It has not expanded beyond its original purpose of mandating a manufacturer-specified inspection/repair for identified airworthiness concerns."},"complexity_factors":["Very short document (under 200 words)","Only 2 defined applicability criteria (serial number range and date range for component shipment)","Single cross-reference to external technical document (Beechcraft SI No. 0629-150)","No nested conditions or exceptions","Clear, unambiguous compliance deadline","Straightforward command structure: identify aircraft → do X by Y date"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nOrders owners and operators of certain Beechcraft 56TC \"Turbo Baron\" aeroplanes to inspect and fix potential problems with their **flight controls** (the rudder and elevators that steer and pitch the aircraft).\n\n**Who it affects:**\n- All Beechcraft Model 56TC aircraft with serial numbers TG-78 through TG-83\n- All Model 56 series aircraft that had their rudder and/or elevators shipped from Beechcraft between **1 May 1973 and 1 July 1976**\n\n**What must be done:**\nOperators must follow the instructions in **Beechcraft Service Instruction No. 0629-150, Revision 11** — a technical document from the manufacturer detailing the required inspection or repair.\n\n**When:**\nThe work must be completed within **100 hours of flight time** after **31 January 1979**.\n\n**Why it matters:**\nFlight control defects can cause catastrophic loss of control. This AD addresses a known safety defect in specific batches of aircraft components, ensuring potentially dangerous hardware is identified and corrected before it fails in flight."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-56-18-flight-controls","history":"/api/acts/ad-beech-56-18-flight-controls/history","analysis":"/api/acts/ad-beech-56-18-flight-controls/analysis","conflicts":"/api/acts/ad-beech-56-18-flight-controls/conflicts","importantCases":"/api/acts/ad-beech-56-18-flight-controls/important-cases","documents":"/api/acts/ad-beech-56-18-flight-controls/documents"}}