{"id":"F2006B06034","name":"AD/PA-46/28 Amdt 1 - Aircraft Flight Manual, Flight into Icing Conditions","slug":"ad-pa-46-28-amdt-1-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":114432,"registerId":"commonwealth-F2006B06034-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-46/28 Amdt 1 - Aircraft Flight Manual, Flight into Icing Conditions","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\n \n\n![](image.001.png)  \n![](image.002.png)  Piper PA-46 (Malibu) Series Aeroplanes\n\n \n\nAIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD)AD/PA-46/28 and issues the following 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 aircraft or 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.\n\n \n\nAD/PA-46/28\n\nAmdt 1\n\n\nAircraft Flight Manual, Flight into Icing Conditions 7/2000\n\n \n\nApplicability: Models PA46-310P, PA46-350P all serial numbers. Requirement:  Revise:\n\n1. the Limitations Section of the aircraft's Aircraft Flight Manual (AFM) by incorporating the following:\n\n\n \n\n\"WARNING\"\n\nSevere icing may result from environmental conditions outside of those for which the aircraft is certificated.\n\n \n\nFlight in freezing rain, freezing drizzle, or mixed icing conditions (super cooled liquid water and ice crystals) may result in:\n\n \n\n- ice build-up on protected surfaces and exceed the capability of the ice protection system, or\n\n\n \n\n- ice forming aft of the protected surfaces.\n\n\nThis ice may not be shed using the ice protection systems, and may seriously degrade the performance and controllability of the aircraft.\n\n \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 \n\n- unusually extensive ice accumulation on the airframe and windscreen in areas not normally observed to collect ice, and/or\n\n\n \n\n- accumulation of ice on the upper surface of the wing aft of the protected area.\n\nSince the auto-pilot, when installed and operating, may mask tactile cues that indicate adverse changes in handling characteristics, use of the auto-pilot is prohibited when any of the visual cues specified above exist, or when unusual lateral trim requirements or auto-pilot trim warnings are encountered while the aircraft is in icing conditions.\n\n \n\nAll wing icing inspection lights must be operative prior to flight into known or forecast icing conditions at night. This direction supersedes any relief provided  by any Minimum Equipment List.\n\n \n\n \n\n \n\n2.     The Normal Procedures Section of the AFM by incorporating the following:\n\n \n\n# THE FOLLOWING WEATHER CONDITIONS MAY BE CONDUCIVE TO SEVERE IN-FLIGHT ICING:\n\n \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.\n\n\n \n\n# PROCEDURES FOR EXITING A SEVERE ICING ENVIRONMENT:\n\n(These procedures are applicable to all flight phases from take-off to landing.)\n\n \n\nMonitor the ambient air temperature.\n\n \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.\n\nIf the visual cues which are specified in the Limitations Section of the AFM for identifying severe icing conditions are observed, accomplish the following:\n\n \n\n- Immediately request priority handling from Air Traffic Control to facilitate a route or an altitude change to exit the severe icing conditions in order to avoid extended exposure to flight conditions more severe than those for which the aircraft has been certificated.\n\n\n \n\n- Avoid abrupt and excessive manoeuvring that may exacerbate control difficulties.\n\n\n \n\n- Do not engage the autopilot.\n- If the autopilot had previously been engaged, hold the control wheel firmly and disengage the autopilot.\n\n\n \n\n- If an unusual roll response or un-commanded roll control movement is observed, reduce the angle-of-attack.\n\n\n \n\n- Do not extend flaps when holding in icing conditions. Operation with flaps extended can result in a reduced wing angle-of-attack, with the possibility of ice forming on the upper surface further aft on the wing than normal, possibly aft of the protected area.\n\n\n \n\n- If the flaps are extended, do not retract them until the airframe is clear of ice.\n- Report these weather conditions to Air Traffic Control.\n\n\nNote 1: Certificate of Registration holders should initiate action to ensure notification of this change is conveyed to any person who may operate their aircraft as pilot in command.\n\n \n\nNote 2: FAA AD98-04-26 refers.\n\n \n\nCertification for accomplishment of this Directive may be carried out:\n\n \n\n1. after a copy of this Directive is included in the appropriate sections of the aircraft's approved AFM; and\n\n\n \n\nb.     may be carried out at a minimum, by the holder of a private pilot's licence.\n\n \n\n \n\nCompliance: Within 30 days after the Effective date of this Amendment.\n\n \n\nThis Amendment becomes effective on 13 July 2000.\n\n \n\nBackground:  This Directive is issued to minimise the potential hazards associated with operating the aircraft in severe icing conditions by providing more clearly defined procedures and limitations associated with such conditions.\n\n \n\nAmendment 1 is issued to correct a word processing error in the initial issue.\n\n \n\nThe original issue of this Airworthiness Directive became effective on 23 March 2000.\n\n![Signature of Bernard Malcolm Hole, Delegate of the Civil Aviation Safety Authority.](image.003.png)  \n\n\n \n\nBernard Malcolm Hole\n\nDelegate of the Civil Aviation Safety Authority 31 May 2000\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![](image.002.png)  \n\n\nThe above AD is notified in the Commonwealth of Australia Gazette on 14 June 2000.\n","sortOrder":0}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope of the March 2000 directive. Amendment 1 was issued solely to correct a word processing error in the initial issue, with no expansion of applicability, requirements, or compliance obligations. The safety purpose — addressing severe icing hazards in PA-46 aircraft — remains unchanged."},"complexity_factors":["Single, clearly defined applicability (two specific aircraft models)","Straightforward two-part requirement structure (update Limitations Section, update Normal Procedures Section)","Minimal cross-referencing (only one external reference to FAA AD98-04-26 in a note)","Clear, prescriptive language with specific actionable steps","Simple compliance mechanism (insert copy of directive into flight manual, can be certified by private pilot)","Single amendment correcting a minor word processing error — no layered amendment history","No defined terms section or complex interpretive provisions","Temporal scope limited (compliance within 30 days of effective date)"],"plain_english_summary":"This Airworthiness Directive requires owners/operators and pilots of Piper PA-46-310P and PA-46-350P aircraft to amend their Aircraft Flight Manual within 30 days (by 13 July 2000) to add warnings and escape procedures for encountering severe icing. \n\nIt matters because severe icing—including freezing rain/drizzle and mixed conditions—can outpace de-icing protections and degrade control. Amendment 1 corrects a prior word‑processing error from March 2000."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Amendment 1 corrects a word‑processing error in the original Directive; it does not introduce new substantive obligations or broaden the AD’s applicability. The operative requirements remain AFM revision, equipment/serviceability direction and the operational limitations and procedures set out in the Directive."},"complexity_factors":["Narrow applicability: specific to PA46‑310P and PA46‑350P models (low regulatory breadth).","Textual AFM revision (procedural/operational changes) rather than technical modification of aircraft structure or systems.","Operational reliance on pilot judgement using visual cues to identify 'severe icing', creating interpretive discretion and potential enforcement ambiguity.","Equipment/serviceability requirement (wing icing inspection lights operative for night icing flights) imposes a concrete maintenance/check burden.","Prohibition on autopilot use in specified icing cues alters normal crew procedures and training/practice expectations.","Short compliance timeframe (30 days) increases administrative urgency for owners/operators to update manuals and notify pilots.","Certification may be completed by a private pilot, lowering formal sign‑off barriers but shifting compliance monitoring to operators."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Piper PA‑46‑310P and PA‑46‑350P aeroplanes to revise the Aircraft Flight Manual to add warnings, operating limits and procedures for recognising and exiting severe in‑flight icing. CASA sets a 30‑day compliance deadline and allows certification of compliance after the AFM is updated (including by a holder of a private pilot licence). The Directive’s stated purpose is to reduce hazards from severe icing; it transfers key judgements to pilots (visual cues) and imposes modest administrative, equipment‑serviceability and operational constraints on operators."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-46-28-amdt-1-aircraft-flight-manual-flight-into-icing-conditions","history":"/api/acts/ad-pa-46-28-amdt-1-aircraft-flight-manual-flight-into-icing-conditions/history","analysis":"/api/acts/ad-pa-46-28-amdt-1-aircraft-flight-manual-flight-into-icing-conditions/analysis","conflicts":"/api/acts/ad-pa-46-28-amdt-1-aircraft-flight-manual-flight-into-icing-conditions/conflicts","importantCases":"/api/acts/ad-pa-46-28-amdt-1-aircraft-flight-manual-flight-into-icing-conditions/important-cases","documents":"/api/acts/ad-pa-46-28-amdt-1-aircraft-flight-manual-flight-into-icing-conditions/documents"}}