Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 2084

f) specific operational authorization is granted by the State of the Operator. 2. Glossary of terms Where the following terms are used in this Attachment, they have the meaning indicated: Adequate alternate aerodrome. An adequate alternate aerodrome is one at which the landing performance requirements can be met and which is expected to be available, if required, and which has the necessary facilities and services, such as air traffic control, lighting, communications, meteorological services, navigation aids, rescue and fire-fighting services and one suitable instrument approach procedure. Aeroplane system. An aeroplane system includes all elements of equipment necessary for the control and performance of a particular major function. It includes both the equipment specifically provided for the function in question and other basic related aeroplane equipment such as that required to supply power for the equipment operation. As used herein the power-unit is not considered to be an aeroplane system. Extended range operation. Any flight by an aeroplane with two turbine power-units where the flight time at the one power-unit inoperative cruise speed (in ISA and still air conditions), from a point on the route to an adequate alternate aerodrome, is greater than the threshold time approved by the State of the Operator. Power-unit. A system consisting of an engine and all ancillary parts installed on the engine prior to installation on the aeroplane to provide and control power/thrust and for the extraction of energy for aeroplane systems, but not including independent short-period thrust-producing devices. Propulsion system. A system consisting of a power-unit and all other equipment utilized to provide those functions necessary to sustain, monitor and control the power/thrust output of any one power-unit following installation on the airframe. Suitable alternate aerodrome. A suitable alternate aerodrome is an adequate aerodrome where, for the anticipated time of use, weather reports, or forecasts, or any combination thereof, indicate that the weather conditions will be at or above the required aerodrome operating minima, and the runway surface condition reports indicate that a safe landing will be possible. 2007/70/II. szám Annex 6 — Operation of Aircraft Part I 1/11/01 ATT E-2 3. Airworthiness certification requirements for extended range operations During the airworthiness certification procedure for an aeroplane type intended for extended range operations, special attention should be paid to ensuring that the required level of safety will be maintained under conditions which may be encountered during such operations, e.g. flight for extended periods following failure of an engine and/or essential systems. Information or procedures specifically related to extended range operations should be incorporated into the aeroplane flight manual, maintenance manual or other appropriate document. Note.— Criteria for aeroplane systems performance and reliability for extended range operations are contained in the Airworthiness Manual (Doc 9760). 4. Propulsion system maturity and reliability 4.1 Basic elements to be considered for the authorization of extended range operations are the maturity and reliability of the propulsion system. These should be such that the risk of complete loss of power from independent causes is extremely remote. 4.2 The only way to assess the maturity of the propulsion system and its reliability in service is to exercise engineering judgement, taking account of the worldwide experience with the power-unit. 4.3 For a propulsion system whose reliability has already been assessed, each national authority must evaluate the ability of the operator to maintain that level of reliability, taking into account the operator’s record of reliability vis-à-vis powerunits of closely related types. 5. Airworthiness modifications and maintenance programme requirements Each operator’s maintenance programme should ensure that:

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