  FE312SS/88--OPR-C121-WH-88; WHILE SEARCHING FOR AWOIS ITEM 1634, TWO SIDE SCAN SONAR CONTACTS WERE LOCATED AND IDENTIFIED AS WRECKAGE (ALSO SEE ITEM 7509); FIRST OBSTRUCTION (CONTACT NO. 330.1S) WAS FOUND TO BE WRECKAGE IN A SCOUR 2 FT. DEEP IN LAT 40-