Doa .44-/501/6 Erratum W/56 INTERNATIONAL CIVIL AVIBTION QiGA.NIZATIq PROCEDURES FOR AIR NAVIGATION SERVICES RULES OF THE AIR AND AIR TRAFFIC SERVICE3 ' Sixth Edition - 1956 Bium Applicable to the English and Spanish textis only Attahnt A, me 10 Para. 4,l. Item 2 - 2 Amend to read as follass o 2e or more position free, or positive fixw.