02372
HISTORY
LS1824/43--OBSTRUCTION, 31 FT. SNDG.                                          
H9960/81--OPR-Z137-WH-81; 31FT OBSTR. NOT DISPROVED. 45 AND 10M LINE SPACING  
 AND A CIRCLE SEARCH BOTTOM (DIVER) INVESTIGATION OF WHICH 200M RADIUS WAS NOT