NOTICE ADVISORY TO NAVSTAR USERS (NANU) #074-91096
SUBJ: PRN12 UNUSABLE DAY 96/1900-96/1913
1. CONDITION: PRN12 (MCS: SVN10) WAS UNUSABLE ON DAY 96 (6 APR 91)
BEGINNING 1900 UTC UNTIL 1913 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.