{"id":"F2006B10278","name":"AD/GENERAL/47 - 3 Pointer Type Altimeters","slug":"ad-general-47-3-pointer-type-altimeters","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55962,"registerId":"commonwealth-F2006B10278-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GENERAL/47 - 3 Pointer Type Altimeters","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)  Aircraft - General\n\n \n\nAD/GENERAL/47 3 Pointer Type Altimeters 1/72\n\nApplicability: All pressurised aircraft.\n\n \n\nRequirement: Three pointer type altimeters installed in pressurised aircraft in compliance with the requirements of Air Navigation Orders Section 20.18 shall comply with Air Navigation Orders Section 103.4 or shall have a US military standard MS.28044 type presentation incorporating:\n\n \n\n1. A warning section visible for all indications up to but not exceeding 10,000 feet.\n\n\n \n\n2.    An analogue line commencing at zero feet; and\n\n \n\n3.    A fine line not exceeding 0.5 mm or 0.018 inch in width extending from the tip of the 10,000 foot pointer to the outer triangular marker.\n\n \n\nCompliance: Before 28 January 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\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1919},"content_quality":"ok","complexity_score":2,"rejection_reason":"","scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope regarding altimeter display standards for pressurised aircraft. No expansion of coverage or purpose is evident in the text."},"complexity_factors":["Single-page document with minimal text","Simple binary compliance structure (meet Australian standard OR meet specific US standard)","Only three specific technical criteria listed under the US standard option","No defined terms section and minimal cross-references (only to Air Navigation Orders)","Broad applicability statement ('All pressurised aircraft') with no conditional exceptions or carve-outs"],"plain_english_summary":"This AD mandates specific design standards for three‑pointer altimeters in pressurised Australian aircraft: they must either meet the Australian Air Navigation Orders standard or the US military MS.28044 standard with required visual features (including a below‑10,000 ft warning band). \n\nIt applies to operators and owners of pressurised commercial, business and high‑performance private aircraft and aims to reduce altitude misreading and related accidents, especially below 10,000 ft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-general-47-3-pointer-type-altimeters","history":"/api/acts/ad-general-47-3-pointer-type-altimeters/history","analysis":"/api/acts/ad-general-47-3-pointer-type-altimeters/analysis","conflicts":"/api/acts/ad-general-47-3-pointer-type-altimeters/conflicts","importantCases":"/api/acts/ad-general-47-3-pointer-type-altimeters/important-cases","documents":"/api/acts/ad-general-47-3-pointer-type-altimeters/documents"}}