According to the QC, SEASTRNAME1, SEASTRTNAME1, or SEASADD3_1 should only be displayed if SEASTNUM = NA AND SEAFULLST = NA AND ((SEACITY <> NA) or (SEAST <> NA) or (SEAZIP <> NA) or (SEACOUNTRY <> NA) or (SEACITY_FOLLOWUP <> NA) or (SEAST_FOLLOWUP <> NA) or (SEAZIP_FOLLOWUP <> NA) or (SEACOUNTRY_FOLLOWUP <> NA)).
Similar to issue #459 , participants left all address questions blank but still saw and responded to SEASTRNAME1, SEASTRTNAME1, or SEASADD3_1. These errors were all in the last 3 months and specifically answered SEASADD3_1 with 178420302 ("I don't know")