AWOIS ITEM 4704

HISTORY
H9886/80--OPR-D218-HSB-80; AN UNCHARTED OBSTRUCTION WAS FOUND IN LAT          
 39-53-35.6N, LONG 75-07-52.2W; A SHARP SPIKE ON FATHOGRAM WAS NOT            
 DEVELOPED BY HYDROGRAPHER AND WAS INTERPRETED AS AN OBSTRUCTION