
 HISTORY
  LNM41/81--SUBMERGED OBSTR. REPORTED IN THE VICINITY OF SHREWSBURY RIVER LB 39 
(LL 1669) AND LB 40(LL 1670), APPROX. 6 INCHES BELOW SURFACE.                
  H10037/82--OPR-B259-HSB-82; PSR ITEM 15; DISCREPANCY BETWEEN GP AND POSITION  
