LEUT W. D. H. Lees, RAN, and two divers of Clearance Diving Team 3, embarked in USCGC POINT GRACE to intercept an enemy trawler attempting to land ammunition at the mouth of the Song Bo De in Vietnam. The trawler was sighted in the early hours of 1 March and immediately opened fire with machine guns while running for the shore. A direct hit from a 4.5 inch shell fired by USCGC WINONA caused the trawler to blow up and sink.
The Attack class patrol boat HMAS SAMARAI, was commissioned. SAMARAI was laid down in Evans Deakin Yard, Brisbane, in December 1966, and launched on 14 July 1967. Mrs L. B. Evans, (Wife of the Deputy Chairman of the Defence Business Board), performed the launching ceremony. She was gifted to the PNGDF in November 1974.