Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 5958

c) routine data, integrity level 1 × 10-3: there is a very low probability when using corrupted routine data that the continued safe flight and landing of an aircraft would be severely at risk with the potential for catastrophe. 2.1.3 Protection of electronic aeronautical data while stored or in transit shall be totally monitored by the cyclic redundancy check (CRC). To achieve protection of the integrity level of critical and essential aeronautical data as classified in 2.1.2, a 32- or 24-bit CRC algorithm shall apply respectively. 2.1.4 Recommendation.— To achieve protection of the integrity level of routine aeronautical data as classified in 2.1.2, a 16-bit CRC algorithm should apply. Note.— Guidance material on the aeronautical data quality requirements (accuracy, resolution, integrity, protection and traceability) is contained in the World Geodetic System — 1984 (WGS-84) Manual (Doc 9674). Supporting material in respect of the provisions of Appendix 1 related to accuracy and integrity of aeronautical data, is contained in RTCA Document DO-201A and European Organization for Civil Aviation Equipment (EUROCAE) Document ED-77 — Industry Requirements for Aeronautical Information. 2.1.5 Geographical coordinates indicating latitude and longitude shall be determined and reported to the aeronautical information services authority in terms of the World Geodetic System — 1984 (WGS-84) geodetic reference datum, identifying those geographical coordinates which have been transformed into WGS-84 coordinates by mathematical means and whose accuracy of original field work does not meet the requirements in Appendix 1, Table 1. 2.1.6 The order of accuracy of the field work shall be such that the resulting operational navigation data for the phases of flight will be within the maximum deviations, with respect to an appropriate reference frame, as indicated in tables contained in Appendix 1. 2.1.7 In addition to the elevation (referenced to mean sea level) of the specific surveyed ground positions at heliports, geoid undulation (referenced to the WGS-84 ellipsoid) for those positions as indicated in Appendix 1, shall be determined and reported to the aeronautical information services authority. Note 1.— An appropriate reference frame is that which enables WGS-84 to be realized on a given heliport and with respect to which all coordinate data are related. Note 2.— Specifications governing the publication of WGS- 84 coordinates are given in Annex 4, Chapter 2, and Annex 15, Chapter 3. 2.2 Heliport reference point 2.2.1 A heliport reference point shall be established for a heliport not co-located with an aerodrome. Note.— When the heliport is co-located with an aerodrome, the established aerodrome reference point serves both aerodrome and heliport. 2.2.2 The heliport reference point shall be located near the initial or planned geometric centre of the heliport and shall normally remain where first established. 25/11/04 No. 3 2007/70/II. szám Chapter 2 Annex 14 — Aerodromes 9/11/95 6/11/97 No. 2 2.2.3 The position of the heliport reference point shall be measured and reported to the aeronautical information services authority in degrees, minutes and seconds. 2.3 Heliport elevation 2.3.1 The heliport elevation and geoid undulation at the heliport elevation position shall be measured and reported to the aeronautical information services authority to the accuracy of one-half metre or foot. 2.3.2 For a heliport used by international civil aviation, the elevation of the touchdown and lift-off area and/or the elevation and geoid undulation of each threshold of the final approach and take-off area (where appropriate) shall be measured and reported to the aeronautical information services authority to the accuracy of: — one-half metre or foot for non-precision approaches; and — one-quarter metre or foot for precision approaches. Note.— Geoid undulation must be measured in accordance with the appropriate system of coordinates. 2.4 Heliport dimensions and related information 2.4.1 The following data shall be measured or described, as appropriate, for each facility provided on a heliport:

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