NOTICE ADVISORY TO NAVSTAR USERS (NANU) #070-94049 SUBJ: PRN12 UNUSABLE 049/1545-049/2020 REF: NANU 035-94049 (DTG 012016Z FEB 94) 1. CONDITION: PRN12 (SVN10) WAS UNUSABLE ON DAY 049 (18 FEB 94) BEGINNING 1545 UTC UNTIL DAY 049 AT 2020 UTC FOR ROUTINE MAINTENANCE. 2. POC: CAPT THOMPSON AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.