USS PT-66 was a motor torpedo boat of the United States Navy, a PT boat of the type used for close attacks.
She was in the Battle of the Bismarck Sea, dated 2 March 1943. Allied aircraft made the attack that sank the convoy.
The motor torpedo boats came in after dark. On the night of 3-4 March 1943, PT-66 attacked the wrecks.
By the time the boats arrived, the convoy had already been sunk from the air. PT-66's part was that later attack on the wrecks.
The battle stands at 2 March 1943, and her attack on the wrecks falls on the night of 3-4 March, after the aircraft had sunk the convoy and the boats had come in after dark.