NOTICE ADVISORY TO NAVSTAR USERS (NANU) #082-91109
SUBJ: PRN3 UNUSABLE DAY 109/1214-109/1241
1. CONDITION: PRN3 (MCS: SVN11) WAS UNUSABLE ON DAY 109 (19 APR 91)
BEGINNING 1214 UTC UNTIL DAY 109 AT 1241 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.