{"id":"F2006B04139","name":"AD/BEECH 65/42 - Elevator Stop Bolts - Modification","slug":"ad-beech-65-42-elevator-stop-bolts-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43859,"registerId":"commonwealth-F2006B04139-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 65/42 - Elevator Stop Bolts - Modification","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 65 and 70 (Queen Air) Series Aeroplanes\n\n \n\nAD/BEECH 65/42 Elevator Stop Bolts - Modification 9/74\n\nApplicability: All model 65-B80 with S/Nos. LD-452 to LD-468. Document:  Beechcraft SI No. 0618-152.\n\nCompliance: Within 100 hours’ time in service after 30 September 1974.\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":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The supplied text sets a narrowly defined scope (model 65-B80, serial numbers LD-452 to LD-468) and prescribes a single modification with a specific compliance deadline. There is no indication in the supplied text that the scope or requirements were altered from an earlier or original version; the directive stands as a targeted mandatory modification for the listed aircraft. (Applicability; Document; Compliance)"},"complexity_factors":["Narrow and specific applicability (only model 65-B80, S/N LD-452 to LD-468) reduces scope complexity.","Single required action (modification of elevator stop bolts) simplifies compliance steps.","Clear compliance deadline (100 hours TIS after 30 Sep 1974) reduces scheduling ambiguity.","Reliance on an external technical document (Beechcraft SI No. 0618-152) introduces a dependency on manufacturer detail not contained in the AD text.","Technical execution requires qualified maintenance personnel and possibly parts procurement, creating operational complexity for affected operators."],"plain_english_summary":"The directive mandates a specific modification to the elevator stop bolts on Beechcraft Model 65‑B80 aircraft S/N LD‑452 to LD‑468, to be carried out per Beechcraft Service Instruction No. 0618‑152. Owners/operators must complete the work within 100 hours’ time‑in‑service after 30 September 1974; they bear costs and must arrange qualified maintenance and any downtime."},"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive from 1974 addressing a specific mechanical issue on a narrow subset of aircraft. It has not expanded beyond its original purpose."},"complexity_factors":["Single, specific aircraft model and serial number range","One discrete modification task referenced to an external document","Simple compliance deadline (100 hours time-in-service after fixed date)","No defined terms, cross-references, or conditional logic","Extremely short document (approximately 100 words of substantive content)"],"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 Queen Air aeroplanes (models 65-B80 with serial numbers LD-452 through LD-468) to modify the **elevator stop bolts** on their aircraft. These bolts limit how far the elevator (the control surface that makes the plane pitch up or down) can move. The modification is detailed in Beechcraft Service Instruction No. 0618-152.\n\n**Who it affects:**\nAnyone who owns, operates, or maintains the specific Beechcraft 65-B80 aircraft with those serial numbers.\n\n**Why it matters:**\nElevator stop bolts are critical safety components. If they fail or are incorrectly set, the pilot could lose control of the aircraft's pitch, potentially leading to a crash. This AD mandates a fix to prevent that risk.\n\n**Compliance deadline:**\nThe modification must be completed within 100 hours of flying time after 30 September 1974."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-65-42-elevator-stop-bolts-modification","history":"/api/acts/ad-beech-65-42-elevator-stop-bolts-modification/history","analysis":"/api/acts/ad-beech-65-42-elevator-stop-bolts-modification/analysis","conflicts":"/api/acts/ad-beech-65-42-elevator-stop-bolts-modification/conflicts","importantCases":"/api/acts/ad-beech-65-42-elevator-stop-bolts-modification/important-cases","documents":"/api/acts/ad-beech-65-42-elevator-stop-bolts-modification/documents"}}