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31 July 2011 C1 CIVIL AVIATION DEPARTMENT HONG KONG ...

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(b)(c)the operator's maintenance procedures, operating practices, flightdispatch procedures and crew training programmes; andequipment and other requirements provided in accordance withAppendix 3 to ICAO Annex 6 Part I - Additional Requirements ForApproved Operations By Single-Engine Turbine-Powered AeroplanesAt Night And/Or In Instrument Meteorological Conditions (IMC).Note: Guidance on additional requirements for operations of single-engineturbine-powered aeroplanes at night and/or in IMC is contained in theabove-mentioned Appendix 3.3.2 All single-engine turbine-powered aeroplanes operated at night and/or in IMCshall have an engine trend monitoring system, and those aeroplanes for whichthe individual certificate of airworthiness is first issued on or after 23 February2009 shall have an automatic trend monitoring system.4 Additional requirements for operations of helicopters in performance Class 3 inIMC, except special VFR flights4.1 For operations of helicopters in performance Class 3 in IMC, except specialVFR, the operator shall ensure the helicopter is certificated for flight underInstrument Flight Rules (IFR) and that the overall level of safety intended bythe provisions of Annexes 6 and 8 is provided by:(a)(b)(c)the reliability of the engines;the operator's maintenance procedures, operating practices and crewtraining programmes; andequipment and other requirements provided in accordance withAppendix 2 to ICAO Annex 6 Part III - Additional Requirements forOperations of Helicopters in Performance Class 3 in InstrumentMeteorological Conditions (IMC).Note: Guidance on additional requirements for operations of helicopters inperformance Class 3 in IMC is contained in the above-mentionedAppendix 2.4.2 Operators of helicopters operating in performance Class 3 in IMC shall have aprogramme for engine trend monitoring and shall utilize the engine andhelicopter manufacturers’ recommended instruments, systems and operational/maintenance procedures to monitor the engines.23 February 2009 AN-36G P.2

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