{"id":"F2006B02219","name":"AD/AC-SNOW/6 - Turn and Bank Indicator Installation - Modification","slug":"ad-ac-snow-6-turn-and-bank-indicator-installation-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41449,"registerId":"commonwealth-F2006B02219-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AC-SNOW/6 - Turn and Bank Indicator Installation - Modification","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue 6/1967,Aircraft below 5700 kg,Ayres Thrush (Snow) Commander Series Aeroplanes,Turn and Bank Indicator Installation - Modification,6\ntitle: Airworthiness Directive - AD/AC-SNOW/6 - Turn and Bank Indicator Installation - Modification\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)  Ayres Thrush (Snow) Commander Series Aeroplanes\n\n \n\nAD/AC-SNOW/6  Turn and Bank Indicator Installation - Modification\n\n\n6/67\n\n \n\nApplicability: All models.\n\n \n\nRequirement: Ensure that the turn and bank indicator is mounted at the angle recommended by the instrument manufacturer.\n\n \n\nCompliance: Before 1 April 1968.\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":1392},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive remains focused on its original narrow purpose: regulating the installation angle of a single flight instrument in a specific aircraft series. No evidence of scope creep or expansion into unrelated operational areas."},"complexity_factors":["Single, unqualified requirement with no exceptions or conditions","No definitions section or technical cross-references","No subordinate legislative instruments referenced","Total substantive content is fewer than 50 words"],"plain_english_summary":"**What this is:** A safety rule for owners and operators of **Ayres Thrush (Snow) Commander** aircraft—a type of agricultural aeroplane commonly used for crop dusting and spraying.\n\n**What you must do:** Check that the **turn and bank indicator** (the cockpit instrument that tells the pilot if the plane is turning and how much it is tilting) is mounted at the exact angle specified by the instrument manufacturer. If it isn't, you need to adjust it.\n\n**Why this matters:** An incorrectly tilted instrument can display false readings, potentially causing the pilot to lose control or become disoriented—particularly dangerous during the low-level flying typical of agricultural operations.\n\n**Who it affects:** All models of Ayres Thrush (Snow) Commander Series aircraft registered in Australia.\n\n**Compliance deadline:** This work had to be completed before 1 April 1968."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ac-snow-6-turn-and-bank-indicator-installation-modification","history":"/api/acts/ad-ac-snow-6-turn-and-bank-indicator-installation-modification/history","analysis":"/api/acts/ad-ac-snow-6-turn-and-bank-indicator-installation-modification/analysis","conflicts":"/api/acts/ad-ac-snow-6-turn-and-bank-indicator-installation-modification/conflicts","importantCases":"/api/acts/ad-ac-snow-6-turn-and-bank-indicator-installation-modification/important-cases","documents":"/api/acts/ad-ac-snow-6-turn-and-bank-indicator-installation-modification/documents"}}