Small Planes Over Big Oceans (ETOPS Explained)

ETOPS, or Extended Operations or Extended Twin Operations, describes a type of operation in which air carriers are allowed to fly an extended range over places where airports and landing areas are sparse, such as long routes over the ocean (although ETOPS is not limited to oceanic flights.)

These air carriers may have previously been restricted by FAR Part 121.161, which puts restrictions on air carriers over certain routes, and ETOPS is an added privilege or an exemption from the stated rule imposed by the FAA outlined in FAR Part 121.161.

Watch this simple explanation made by youtube channel Wendover Productions.