NOTICE ADVISORY TO NAVSTAR USERS (NANU) #080-91107
SUBJ: PRN11 UNUSABLE DAY 107/0706-107/0735
1. CONDITION: PRN11 (MCS: SVN8) WAS UNUSABLE ON DAY 107 (17 APR 91)
BEGINNING 0706 UTC UNTIL DAY 107 AT 0735 UTC.
2. RECOMMENDATION: CONFIRM STATUS OF SATELLITES PRIOR TO USE.
3. POINT OF CONTACT: MAJOR FAUVER AT COMMERCIAL (719)550-6379
OR DSN: 560-6379.