As it was getting close to port, some American pilot saw it from a distance and reported an aircraft carrier approaching Vung Tau. This apparently caused a bit of consternation - the Americans knew they didn't have a carrier in the area, so whose could it be. An alert went out and a US fighter plane was dispatched to have a closer look.
He overflew the Sydney and reported back.
"I don't think we need to worry - it looks like it's about to launch a bunch of trucks at us."
