NOTICE ADVISORY TO NAVSTAR USERS (NANU) #051-96086 SUBJ: PRN12 DISPOSAL 086/0000 REF: NANU 242-95325 (DTG 212024Z NOV 95) 1. CONDITION: GPS SATELLITE PRN12 (SVN10) HAS BEEN UNUSABLE SINCE JDAY 322 (18 NOV 95) BEGINNING 1845 ZULU DUE TO END OF LIFE TESTING. PRN12 WILL NOT RETURN TO SERVICE. 2. POC: NAVIGATION ANALYST AT COMMERCIAL (719) 567-6378 OR DSN 560-6378.