ABOARD THE USS MISSOURI — Friday the 13th proved to be a most unlucky day for the Korean Communists as the USS Missouri 'unloaded' her 16-inch shells on the town of Tanchon, completing destruction of another link in the North Korean east coast rail route.

Tanchon, approximately-150 miles north of the 38th parallel, was the second strike by the UN task group 77, led by the Mighty Mo, in as many days.

TARGETS ASSIGNED the Missouri included two railway bridges over the Namdae river, one of which was knocked out. One bridge over the Puktaechong river was destroyed. Several direct hits were scored on the marshalling yards of Tanchon by the big guns of the Mo in this bombardment which began at 11 a.m. and ended one hour later.

WHILE THIS TASK group was dropping shells on Chongjin Thursday, patrol elements of Task Force 77 were reported to have sun kor damaged one mine layer, one 2000-ton cargo ship and one corvette type ship of the North Korean people's navy.

Other units group struck of this Songjin task and Sangopodong, also on the east coast of Korea. The light cruiser USS Worcester stayed at Chongjin to continue lobbing shells at military targets in the seaport town.