{"id":"F2006B03849","name":"AD/BEECH 35/53 - Flight Controls","slug":"ad-beech-35-53-flight-controls","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43458,"registerId":"commonwealth-F2006B03849-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 35/53 - 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 35 (Bonanza) Series Aeroplanes\n\n \n\nAD/BEECH 35/53 Flight Controls 9/78\n\nApplicability: All models V35B & V35TC with S/Nos. D-9478 to D-9480, D-9482 to D-9531, D- 9533 to D-9536, D-9539 to D-9968, and all 35 series fitted with a rudder and/or elevator shipped from Beech during period 1 May 1973 to 1 July 1976.\n\n \n\nRequirement: Action in accordance with Beech SI No. 0629-150 Rev. 1. Compliance:  Within 100 hours time in service after 30 September 1978.\n\n \n","sortOrder":0}],"analysis":{"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 defined population of aircraft. It has not expanded beyond its original purpose of mandating inspection/correction of flight control components from a specific production period."},"complexity_factors":["Very short document (under 200 words)","Only 2 defined applicability criteria (specific serial numbers and date range of component shipment)","Single requirement referencing an external technical document (Beech SI No. 0629-150 Rev. 1)","Simple compliance deadline (100 hours time in service after fixed date)","No nested exceptions, conditional logic, or cross-references to other legislation","Straightforward scope limited to specific aircraft models and serial numbers"],"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 specific repairs or inspections on certain aircraft.\n\n**What it does:** It orders owners and operators of specific **Beechcraft Bonanza 35 series aeroplanes** to inspect and fix potential problems with their **flight controls** (the rudder and elevator — the surfaces that steer the plane up/down and left/right).\n\n**Who it affects:** \n- **V35B and V35TC models** with specific serial numbers (D-9478 to D-9480, D-9482 to D-9531, D-9533 to D-9536, D-9539 to D-9968)\n- **All 35 series models** that had a rudder and/or elevator shipped from Beechcraft between **1 May 1973 and 1 July 1976**\n\n**What must be done:** Aircraft owners must follow the instructions in **Beechcraft Service Information Notice No. 0629-150 Revision 1** (a technical bulletin from the manufacturer) to check and correct any issues with these flight controls.\n\n**When:** The work must be completed **within 100 hours of flying time** after **30 September 1978**.\n\n**Why it matters:** Flight controls are critical for safe flying. This directive addresses a specific manufacturing or design defect discovered in a batch of components shipped during 1973–1976. Non-compliance means the aircraft cannot legally fly in Australia."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument defines its scope within the text: specific serial numbers and aircraft shipped with rudder/elevator during 1 May 1973 to 1 July 1976 (Applicability). The directive then prescribes compliance with a named service instruction and sets a fixed compliance window (Requirement; Compliance). The source text contains no indication that the scope has been altered from an earlier version; therefore there is no evidence in this text of a change in scope from the instrument's stated applicability."},"complexity_factors":["Narrow and specific applicability by serial numbers and shipping dates creates a precise but potentially clerical verification task (Applicability).","Mandates compliance with an external technical document (Beech SI No. 0629-150 Rev. 1), requiring access to and interpretation of that service instruction (Requirement).","Compliance deadline tied to flight hours after a historical calendar date (100 hours TIS after 30 September 1978) requires accurate logbooks and hour-based scheduling (Compliance).","Technical subject matter (flight controls) may require certified technicians, specialised parts, or shop facilities, adding operational complexity despite a short regulatory text (title; Requirement).","Enforcement and record-keeping occur within the airworthiness directive regime referenced in the header, creating regulatory bindingness though the AD text does not set out enforcement procedures (header)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Beechcraft 35 (Bonanza) aeroplanes to carry out Beech Service Instruction No. 0629‑150 Rev. 1 (a flight‑controls action) within 100 hours’ time‑in‑service after 30 Sept 1978. Affected operators must obtain and implement the SI, bear the costs and downtime, and schedule maintenance to meet the mandatory compliance window."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-35-53-flight-controls","history":"/api/acts/ad-beech-35-53-flight-controls/history","analysis":"/api/acts/ad-beech-35-53-flight-controls/analysis","conflicts":"/api/acts/ad-beech-35-53-flight-controls/conflicts","importantCases":"/api/acts/ad-beech-35-53-flight-controls/important-cases","documents":"/api/acts/ad-beech-35-53-flight-controls/documents"}}