{"id":"F2006B03816","name":"AD/BEECH 33/9 Amdt 1 - Plastic Control Wheel","slug":"ad-beech-33-9-amdt-1-plastic-control-wheel","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43412,"registerId":"commonwealth-F2006B03816-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 33/9 Amdt 1 - Plastic Control Wheel","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 33 and 35-33 (Debonair/Bonanza) Series Aeroplanes\n\n \n\nAD/BEECH 33/9\n\nAmdt 1\n\n\nPlastic Control Wheel 12/70\n\n \n\nApplicability: All models fitted with non-reinforced plastic control wheels.\n\n \n\nRequirement: Visually inspect all plastic non-reinforced control wheels for cracking. Control wheels in which cracks are present shall be replaced with a serviceable item before further flight. It is recommended that replacements should be of the metal reinforced type.\n\n \n\nCompliance: At intervals not exceeding 100 hours time in service.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, targeted safety directive focused specifically on a known defect in plastic control wheels for particular Beechcraft models. It has not expanded beyond its original purpose of addressing this specific airworthiness concern."},"complexity_factors":["Very short document (approximately 150 words)","Only 2 defined concepts: 'time in service' (standard aviation term) and 'serviceable item' (common maintenance term)","No cross-references to other legislation or regulations","Single straightforward requirement with no exceptions or conditional logic","Clear, unambiguous compliance deadline (100 hours time in service)"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It applies to specific **Beechcraft Debonair and Bonanza aeroplanes** (models 33 and 35-33 series).\n\n**What it does:**\n- Requires owners and operators to **visually inspect plastic control wheels** (the steering wheel of the plane) that are **not reinforced with metal**\n- If any **cracks are found**, the control wheel must be **replaced before the aircraft can fly again**\n- Strongly recommends replacing cracked wheels with **metal-reinforced versions** instead of another plastic one\n\n**Who it affects:**\n- Owners and operators of affected Beechcraft aircraft fitted with non-reinforced plastic control wheels\n- Licensed aircraft maintenance engineers who perform the inspections\n\n**Why it matters:**\nA cracked control wheel could fail during flight, causing loss of control of the aircraft. This directive prevents accidents by catching deterioration early through regular inspection.\n\n**Compliance:**\nThe inspection must be done **every 100 hours of flight time** (measured by the aircraft's hour meter)."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The provided text does not indicate any expansion or narrowing of applicability beyond its stated scope. It applies to “All models fitted with non-reinforced plastic control wheels” and sets a recurring inspection and mandatory replacement requirement where cracks are found. No text in this instrument indicates a change from an earlier or original scope within the supplied material."},"complexity_factors":["Short, focused directive with a single mandated inspection and replacement requirement.","Clear applicability clause limited to models fitted with non-reinforced plastic control wheels.","Mandatory replacement requirement tied to a simple, specified condition (presence of cracks) and a clear timing constraint (before further flight).","Potential implementation ambiguity around undefined terms: “serviceable item” and what precisely constitutes a “crack.”","Operational scheduling impact from the fixed inspection interval (100 hours TIS) and the ‘‘before further flight’’ replacement requirement."],"plain_english_summary":"This directive requires owners/operators of Beechcraft 33/35‑33 aircraft fitted with non‑reinforced plastic control wheels to perform visual inspections for cracking at intervals not exceeding 100 hours TIS and to replace any cracked wheel with a serviceable item before further flight. It recommends—but does not mandate—metal‑reinforced replacements. The rule imposes recurring inspection and replacement costs, grounding risk if cracks are found, and some implementation ambiguity (e.g., “serviceable” and “crack” standards)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-33-9-amdt-1-plastic-control-wheel","history":"/api/acts/ad-beech-33-9-amdt-1-plastic-control-wheel/history","analysis":"/api/acts/ad-beech-33-9-amdt-1-plastic-control-wheel/analysis","conflicts":"/api/acts/ad-beech-33-9-amdt-1-plastic-control-wheel/conflicts","importantCases":"/api/acts/ad-beech-33-9-amdt-1-plastic-control-wheel/important-cases","documents":"/api/acts/ad-beech-33-9-amdt-1-plastic-control-wheel/documents"}}