Manual of Standards Part 139-Aerodromes.pdfVIP

Chapter 1: Manual of Standards Part 139—Aerodromes Introduction 1.1.1.3 Under CASR Part 121A, aeroplanes with not more than 30 passenger seats can also conduct air transport operations from uncertified or unregistered aerodromes, provided certain specified facilities at those aerodromes are to the standard as that of a certified or registered aerodrome. Accordingly, some of the standards in this MOS are also relevant to uncertified and unregistered aerodromes. 1.1.1.4 To complement CASR Part 121B, a separate chapter has been provided to specify the standards and procedures for aerodromes intended only for aeroplanes with not more than 9 passenger seats or in the case of freight operations, not exceeding 5,700 kg, conducting air transport operations. 1.1.1.5 In addition to this MOS, specifications and procedures which do not reach the regulatory level and information of an educational or advisory nature, may be issued in the form of Advisory Circulars. 1.1.1.6 Aerodrome standards will change from time to time to meet identified safety needs, technological changes and changes in international standards and practices. It is recognised that there are difficulties and limitations in applying new standards to existing aerodrome facilities and installations. This aspect is addressed in some detail in Chapter 2. 1.1.1.7 Standards are identified by the words ‘must’ or ‘shall’. Appendices and tables form part of the main document and have the same status as the primary text. This MOS may also require standards from other documents to be followed. In this case, the referred standards become part of this MOS. 1.1.1.8 In some circumstances, the uniform application of a particular s