NOTICE ADVISORY TO NAVSTAR USERS (NANU) #039-95067 SUBJ: PRN28 UNUSABLE 066/0430-067/0241 REF: NANU 037A/95066 (DTG 070521Z MAR 95) 1. CONDITION: PRN28 (SVN28) WAS UNUSABLE ON DAY 066 (07 MAR 95) BEGINNING 0430 UTC UNTIL DAY 067 AT 0241 UTC. 2. POC: LT ALBERTS AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.