NOTICE ADVISORY TO NAVSTAR USERS (NANU) #047-94041 SUBJ: PRN12 UNUSABLE 041/0148-041/0213 1. CONDITION: PRN12 (SVN10) WAS UNUSABLE ON DAY 041 (10 FEB 94) BEGINNING 0148 UTC UNTIL DAY 041 AT 0213 UTC. 2. POC: CAPT THOMPSON AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.