JetBlue Airways Corp. is planning a $3-billion expansion at JFK Airport. The project includes constructing a new Terminal 6 and redeveloping the existing Terminal 7. The work will comprise 1.2 million sq ft of terminal space, up to 12 international gates, 74,000 sq ft of dining and retail space, lounges and recreational spaces. JetBlue Airways Corp., Attn: Lisa Reifer, 27-01 Queens Plaza N., Long Island City, 11101.DR#17-00727277.