  CGD8 LNM34/82--8/18/82;  REPORTS A SUBMERGED OBSTRUCTION HAS SNAGGED AN UNKNOWN AMOUNT OF CABLE IN THE APPROXIMATE POSITION LAT. 29/12  N,  LON. 91/47.3  W. (NAD 27). THE CABLE WAS  MARKED TEMPORARILY WITH AN ORANGE NORWEIGEN FENDER. (ENTERED 12/03 BY