Aug 15 (Reuters) - NAV Canada NAVCA.UL :
* NAV CANADA - WILL INCREASE ITS CUSTOMER SERVICE CHARGES FOR FIRST TIME IN 15 YEARS
* NAV CANADA - INCREASE IS NECESSARY TO RECOVER APPLICABLE COSTS OF SPACE-BASED ADS-B SURVEILLANCE DATA SERVICES
* NAV CANADA - RATE CHANGE WILL BE IMPLEMENTED IN TWO PHASES, TAKING EFFECT ON SEPTEMBER 1, 2019 AND JANUARY 1, 2020