{"id":"F2006B03727","name":"AD/BEECH 23/1 - Cabin Door Hinge","slug":"ad-beech-23-1-cabin-door-hinge","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43317,"registerId":"commonwealth-F2006B03727-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 23/1 - Cabin Door Hinge","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 19, 23 and 24 Series Aeroplanes\n\n \n\nAD/BEECH 23/1 Cabin Door Hinge 4/63\n\nApplicability: Model 23 with S/Nos. M-50 to M-174, M-177, M-182 and M-189 except M-79, M- 108, M-131, M-132, M-166, M-172.\n\n \n\nRequirement: Action in accordance with Beechcraft SB Model 23 No. 6. Compliance: Before 1 September 1971.\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 1963 (as indicated by the '4/63' suffix). It addresses one specific mechanical issue (cabin door hinge) on one aircraft model. There is no evidence of scope creep; it remains tightly focused on its original safety purpose."},"complexity_factors":["Very short document (under 200 words)","Only 3 operative elements: applicability list, requirement reference to external document (Beechcraft SB), and compliance deadline","Simple conditional logic: serial number ranges with explicit exclusions","No defined terms section, no cross-references to other legislation, no nested exceptions","Single compliance action required"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners and operators of specific Beechcraft Model 23 aeroplanes to inspect or fix a problem with the **cabin door hinge**.\n\n**Who it affects:**\n- Owners and operators of Beechcraft Model 23 aircraft with specific serial numbers (M-50 to M-174, M-177, M-182 and M-189, but excluding several specific serials like M-79, M-108, etc.)\n\n**What it requires:**\n- Follow the instructions in **Beechcraft Service Bulletin No. 6** for the Model 23 (a manufacturer's technical notice describing the safety fix)\n- Complete this action **before 1 September 1971**\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders. If you don't comply, your aircraft is not considered airworthy — meaning you cannot legally fly it. This particular AD addresses a potential safety defect in the cabin door hinge that could affect flight safety or passenger security."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The text supplies a single, self-contained directive: it defines the affected fleet by serial number (Applicability), mandates action by reference to Beechcraft SB Model 23 No. 6 (Requirement), and sets a compliance date (Compliance). The supplied text contains no indication that the scope has been altered from an earlier or original version."},"complexity_factors":["Narrow technical scope limited to specific aircraft serial numbers (clear applicability)","Prescriptive single action: follow a named manufacturer service bulletin (external dependency)","Fixed, explicit compliance deadline (administrative constraint)","No procedural detail in the AD itself — technical steps are in the linked service bulletin","No enforcement, cost, or verification procedures set out in the text"],"plain_english_summary":"This airworthiness directive requires owners/operators of specific Beechcraft Model 23 aircraft (listed by serial number) to complete the work prescribed in Beechcraft Service Bulletin Model 23 No. 6 by 1 September 1971.  \n\nIt concentrates cost and responsibility on those listed operators, relying on the separate service bulletin for the technical remedy while the AD itself sets applicability and the firm compliance deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-23-1-cabin-door-hinge","history":"/api/acts/ad-beech-23-1-cabin-door-hinge/history","analysis":"/api/acts/ad-beech-23-1-cabin-door-hinge/analysis","conflicts":"/api/acts/ad-beech-23-1-cabin-door-hinge/conflicts","importantCases":"/api/acts/ad-beech-23-1-cabin-door-hinge/important-cases","documents":"/api/acts/ad-beech-23-1-cabin-door-hinge/documents"}}