NOTICE ADVISORY TO NAVSTAR USERS (NANU) #099-94079
SUBJ: PRN31 AS UNUSABLE DAY 079 AT 0807 UTC
1. CONDITION: PRN31 (SVN31) WAS UNUSABLE ON DAY 079 (20 MAR 94)
BEGINNING 0807 UTC UNTIL 0905 UTC.
2. POC: CAPT THOMPSON AT COMMERCIAL (719) 550-6378 OR DSN 560-6378.