  FE387SS/94-- OPR-E696-HE; SIDE SCAN SONAR CONTACT. COMPUTED HEIGHT OF 1.9 METERS IN 12.1 METERS. DIVERS DESCRIBE A BUOY BLOCK WITH CHAIN ATTACHED EXTENDING 5 FEET OFF THE BOTTOM. PNEUMO LD OF 10.3 METERS (33 FEET) IN LAT. 36-56-15.379N, LONG. 76-03-02.