{"id":"F2006B08116","name":"AD/CESSNA 210/67 - Aircraft Flight Manual, Flight into Icing Conditions","slug":"ad-cessna-210-67-aircraft-flight-manual-flight-into-icing-conditions","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115226,"registerId":"commonwealth-F2006B08116-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"\"WARNING\"","sectionType":"part","heading":"\"WARNING\"","content":"# \"WARNING\"\n\nSevere icing may result from environmental conditions outside of those for which the aircraft is certificated.\n\nFlight in freezing rain, freezing drizzle, or mixed icing conditions (super cooled liquid water and ice crystals) may result in:\n\n    ice build-up on protected surfaces and exceed the capability of the ice protection system, or\n\n    may result in ice forming aft of the protected surfaces.\n\nThis ice may not be shed using the ice protection systems, and may seriously degrade the performance and controllability of the aircraft.\n\nDuring flight, severe icing conditions that exceed those for which the aircraft is certificated shall be determined by the visual cues described below. If one or more of these visual cues exists, immediately request priority handling from Air Traffic Control to facilitate a route or an altitude change to exit the icing conditions. The cues are:\n\n    unusually extensive ice accumulation on the airframe and windscreen in areas not normally observed to collect ice, and/or\n\n    accumulation of ice on the lower surface of the wing aft of the protected area.","sortOrder":1},{"sectionNumber":"THE FOLLOWING WEATHER CONDITIONS MAY BE ","sectionType":"part","heading":"THE FOLLOWING WEATHER CONDITIONS MAY BE CONDUCIVE TO SEVERE IN-FLIGHT ICING:","content":"# THE FOLLOWING WEATHER CONDITIONS MAY BE CONDUCIVE TO SEVERE IN-FLIGHT ICING:\n\n    Visible rain at temperatures below 0 degrees Celsius ambient air temperature;\n    Droplets that splash or splatter on impact at temperatures below 0 degrees Celsius ambient air temperature.","sortOrder":2},{"sectionNumber":"PROCEDURES FOR EXITING A SEVERE ICING","sectionType":"part","heading":"PROCEDURES FOR EXITING A SEVERE ICING","content":"# PROCEDURES FOR EXITING A SEVERE ICING\n\nENVIRONMENT: (These procedures are applicable to all flight phases from take-off to landing.)\n\nMonitor the ambient air temperature.\n\nWhile severe icing may form at temperatures as cold as \\-18 degrees Celsius, increased vigilance is warranted at temperatures around freezing when visible moisture is present.","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standalone Airworthiness Directive with a narrow, specific purpose: addressing severe icing risks in Cessna 210 aircraft. It has not expanded beyond its original safety intent. ADs are typically issued in response to specific safety concerns or manufacturer bulletins and remain focused on the particular unsafe condition they address."},"complexity_factors":["Short, single-purpose document (approximately 400 words)","No defined terms section or complex legislative cross-references","Simple conditional structure: 'If X occurs, do Y'","Minimal regulatory machinery — refers to CAR 1998 subregulation 39.1(1) only as enabling power","Straightforward applicability (specific aircraft model) and compliance (immediate action when conditions met)","Uses plain language warning format rather than dense legislative drafting"],"plain_english_summary":"This AD mandates procedures for pilots and operators of Cessna 210 aircraft when flying in icing conditions: recognise severe icing (including freezing rain/drizzle that can overwhelm anti‑ice and form behind protected areas) and act immediately. \n\nPilots must watch for unusual ice on windscreens/wings, contact ATC for priority clearance to change altitude or route to escape, and be extra cautious whenever visible moisture exists near or below freezing because ice can make the aircraft uncontrollable."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The instrument reiterates operational warnings and prescribes in‑flight measures to exit severe icing; it does not extend airworthiness certification limits or impose equipment modifications, nor does it broaden the class of affected aircraft beyond the AD listing."},"complexity_factors":["Operative reliance on pilot visual cues and judgment rather than instrument-only thresholds","Simple, prescriptive actions (request ATC priority; change route/altitude; monitor temperature) rather than technical modifications","Inclusion of temperature thresholds and weather descriptions (freezing rain/drizzle, mixed icing) requiring meteorological interpretation","Cross-reference to regulatory authority (CAR 1998 subreg 39.1(1)) but no extensive compliance paperwork specified","Operational consequences (diversion, ATC coordination) create logistical costs despite low administrative burden","Limited bureaucratic discretion: delegate issues AD but requirements are immediate and operationally focused"],"plain_english_summary":"Mechanically, this Airworthiness Directive requires pilots and operators of the AD‑listed Cessna 210/67 to recognise specific visual cues of severe icing, request priority handling from ATC, change route or altitude to exit icing, and monitor ambient temperature and visible moisture. It applies to all flight phases and matters because severe icing can outstrip ice‑protection systems and degrade control. The rule puts decision and operational costs on pilots (possible diversions, ATC coordination) and depends on aircrew judgment rather than new equipment mandates."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-210-67-aircraft-flight-manual-flight-into-icing-conditions","history":"/api/acts/ad-cessna-210-67-aircraft-flight-manual-flight-into-icing-conditions/history","analysis":"/api/acts/ad-cessna-210-67-aircraft-flight-manual-flight-into-icing-conditions/analysis","conflicts":"/api/acts/ad-cessna-210-67-aircraft-flight-manual-flight-into-icing-conditions/conflicts","importantCases":"/api/acts/ad-cessna-210-67-aircraft-flight-manual-flight-into-icing-conditions/important-cases","documents":"/api/acts/ad-cessna-210-67-aircraft-flight-manual-flight-into-icing-conditions/documents"}}