NOTICE ADVISORY TO NAVSTAR USERS (NANU) #045-94040 SUBJ: PRN13 UNUSABLE 040/1132-040/1136 1. CONDITION: PRN13 (SVN9) WAS UNUSABLE ON DAY 040 (09 FEB 94) BEGINNING 1132 UTC UNTIL DAY 040 AT 1136 UTC. 2. POC: CAPT THOMPSON AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.