Security of the Arab region is indeed part of the US National Security, and the threat of terrorism does not affect Egypt alone, but threatens Europe and America as well. Therefore, America has not supported Egypt for no good reason, but gave it the
Apaches in order to keep such security giving the wars in Syria Iraq, and Libya.
Though it's a positive move by the united states, but it can't be the only reason to build trust between the two countries with many political issues after the revolution of June 30.
America is still concentrating on human rights, and forget about all positive result of the revolution. However, delivering the Apaches is clearly considered restoring part of the American aid. But, it can be delivered also at any time.