NOTICE ADVISORY TO NAVSTAR USERS (NANU) #094-91131
SUBJ: PRN6 UNUSABLE DAY 131/1500-131/1511 UTC
1. CONDITION: PRN6 (MCS: SVN3) WAS UNUSABLE ON DAY 131 (11 MAY 91)
BEGINNING 1500 UTC UNTIL DAY 131 AT 1511 UTC.
2. RECOMMENDATION: CONFIRM AVAILABILITY OF SATELLITES PRIOR TO USE.
3. POINT OF CONTACT: MAJOR FAUVER AT COMMERCIAL (719)550-6379
OR DSN: 560-6379.