Enterprise was returning to Oahu on the morning of 7 December 1941 : 18 SBD Dauntlesses of Enterprise squadrons Scouting Squadron Six ( VS-6 ) and Bombing Squadron Six ( VB-6 ) arrived over Pearl Harbor during the Japanese attack and , though surprised , immediately went into action in defense of the naval base .
18 SBD Dauntlesses from Enterprise squadrons Scouting Squadron Six ( VS-6 ) and Bombing Squadron Six ( VB-6 ) arrived at Pearl Harbor while the Japanese were attacking it .