NOTICE ADVISORY TO NAVSTAR USERS (NANU) #002-90005 SUBJ: POTENTIAL FOR PRN6 OUTAGE 6-14 FEB 90 1. CONDITION: THE NAVIGATION SIGNAL (L1/L2 BANDS OF PRN6) MAY BE TEMPORAILY TURNED OFF AT SOME TIME DURING THE PERIOD 6-14 FEB 90. FURTHER INFORMATION WILL BE PROVIDED AS DETAILS ARE AVIALABLE. 2. RECOMMENDED ACTION: NONE REQUIRED AT THIS TIME. FORECAST INFORMATION ONLY. 3. POINT OF CONTACT: MAJOR WILLIAM A FAUVER, COMMERCIAL (719) 550- 6379 OR AUTOVON 560-6379.