NOTICE ADVISORY TO NAVSTAR USERS (NANU) #077-91101
SUBJ: PRN3 UNUSABLE DAY 101/0214-101/0239
1. CONDITION: PRN3 (MCS: SVN11) WAS UNUSABLE ON DAY 101 (11 APR 91)
BEGINNING 0214 UTC UNTIL DAY 101 AT 0239 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.