Each helicopter had a fuel capacity of two hours to spend in the search area, by which time low fuel supplies and failing visibility forced them to call off the search.
“Flying conditions were good, though there were reasonably strong winds,” Mr Stevenson said.
“Sea conditions were a bit rough, with a few white caps, but search conditions were reasonably good.
“We're pretty confident that if there was someone in the water we would have been able to see them.”
Mr Stevenson said the passenger who made the report had described clothing items on the body thought to have been seen in the water.
“The detail the passenger was able to provide increased the credibility of the sighting but there was a lot debris in the water, probably from the cyclone (Gabrielle).”
Maritime NZ on Friday night said unless further information was received the search was unlikely to be resumed on Saturday, and it was not.