
 HISTORY
  LNM5/99-- AN UNKNOWN SUBMERGED OBJECT HAS BEEN REPORTED IN APPROXIMATE POSITION LAT. 39-16.13N, LONG. 76-34.36W IN 41 FEET OF WATER WITH A CLEARANCE OF 35 FEET. MARINERS ARE URGED TO EXERCISE CAUTION WHEN TRANSITING THE AREA. (ENT 9/9/99, S