  FE354SS/90-- OPR-D111-HE; ITEM NO. 10; UNCHARTED OBSTRUCTION LOCATED BY WHITING (H-10337/90) IN LAT. 36-51-20.55N, LONG. 75-50-50.87W WITH AN ESTIMATED DEPTH OF 14.3 METERS (47 FEET). FOUR SIDE SCAN SONAR CONTACTS WITH DEEPER ESTIMATED DEPTHS WERE LOCA