NOTICE ADVISORY TO NAVSTAR USERS (NANU) #066-91068
SUBJ: PRN13/SVN9  UNUSABLE/USABLE
1. CONDITION: PRN13/SVN9 WAS UNUSABLE FROM 09 MAR 91 (JULIAN
DAY 068) AT 0100 UTC UNTIL 09 MAR 91 (JULIAN DAY 068) AT 0142 UTC.
2. RECOMMENDED ACTIONS: USERS SHOULD AVOID USING DATA FROM PRN13/
SVN9 BETWEEN THE ABOVE MENTIONED DATES AND TIME. POINT OF CONTACT:
MAJOR FAUVER AT COMMERCIAL: (719) 550-6379 OR AUTOVON: 560-6379.