{"id":"F2006B04077","name":"AD/BEECH 60/15 - Wing Lift Detector With Heated Vane","slug":"ad-beech-60-15-wing-lift-detector-with-heated-vane","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43738,"registerId":"commonwealth-F2006B04077-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 60/15 - Wing Lift Detector With Heated Vane","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 60 (Duke) Series Aeroplanes\n\n \n\nAD/BEECH 60/15 Wing Lift Detector With Heated Vane 2/72\n\nApplicability: Model 60 with S/Nos. P-3 to P-122 and P-124 to P-126, and Model A60 with S/Nos. P-123, P-127 to P-151, P-153, P-154, P-157 and P-159 to P-162, used for flight into known icing conditions.\n\n \n\nRequirement: Action in accordance with Beechcraft SI No. 0431-355 and Beechcraft SI No. 0430- 355, Rev. 2.\n\n \n\nCompliance: Before 31 October 1972.\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":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-limited safety directive targeting a specific technical issue (icing-related sensor failure) on a narrow aircraft type. It has not expanded beyond its original purpose of mandating a specific hardware modification for flight safety in icing conditions."},"complexity_factors":["Very short document (approximately 150 words)","Only 2 defined applicability criteria (model type and serial number ranges)","Single requirement referencing external technical documents (Service Instructions)","No nested exceptions or conditional logic","Simple compliance deadline (single fixed date)","No cross-references to other legislation or regulations beyond the enabling Civil Aviation Regulations 1998"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It applies to specific **Beechcraft 60 'Duke' series aeroplanes** (certain serial numbers only) that are flown into **known icing conditions** (weather where ice is expected to form on the aircraft).\n\n**What it requires:**\n- Owners/operators must modify or inspect the **wing lift detector** (a sensor that helps measure airflow/lift over the wing) by adding or ensuring it has a **heated vane** (a small blade that is electrically warmed to prevent ice buildup).\n- The work must follow specific **Beechcraft Service Instructions** (technical manuals from the manufacturer).\n\n**Why it matters:**\nIce buildup on sensors can give false readings to pilots about how much lift the wings are generating. In icing conditions, this could lead to dangerous situations like stall warnings failing or appearing when they shouldn't. The heated vane prevents ice accumulation, keeping the sensor accurate and the aircraft safe.\n\n**Who must comply:**\nOperators of the listed Beechcraft Duke models (serial numbers P-3 through P-162, with specific exclusions) who fly into icing conditions. The work had to be completed before **31 October 1972**."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument itself does not state any change to an earlier scope or amend prior applicability language; it sets a requirement for a defined set of serial-numbered aeroplanes used in known icing conditions and delegates technical detail to two Beechcraft service instructions (Applicability; Requirement). Based on the text supplied, there is no express indication that the directive expands or contracts scope from an earlier instrument."},"complexity_factors":["Narrow, serial-numbered applicability (specific Model 60/A60 serial ranges) narrowing the affected population (Applicability).","Reference to external technical documents (Beechcraft SI No. 0431-355 and SI No. 0430-355, Rev. 2) for the substantive work, creating dependency on non-instrument material for technical detail (Requirement).","Fixed compliance deadline imposes time pressure for sourcing parts and scheduling maintenance (Compliance).","Technical subject matter (wing lift detector with heated vane) implies specialised maintenance skills and parts even though the AD does not set them out (title, Requirement).","Short instrument text with limited procedural detail reduces internal complexity but increases operational complexity for implementers who must consult and interpret the service instructions (Requirement)."],"plain_english_summary":"This AD mandates that owners/operators of specific Beechcraft Model 60/A60 aeroplanes used for flight into known icing must complete the inspections/modifications set out in Beechcraft Service Instructions 0431‑355 and 0430‑355 (Rev.2) by 31 October 1972. It targets the wing lift detector with heated vane; operators must obtain the SIs, fund and arrange the work through maintenance providers, and meet the fixed compliance deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-60-15-wing-lift-detector-with-heated-vane","history":"/api/acts/ad-beech-60-15-wing-lift-detector-with-heated-vane/history","analysis":"/api/acts/ad-beech-60-15-wing-lift-detector-with-heated-vane/analysis","conflicts":"/api/acts/ad-beech-60-15-wing-lift-detector-with-heated-vane/conflicts","importantCases":"/api/acts/ad-beech-60-15-wing-lift-detector-with-heated-vane/important-cases","documents":"/api/acts/ad-beech-60-15-wing-lift-detector-with-heated-vane/documents"}}