The large pod-like structures under the aircraft wings are called Flap Track Fairings (FTFs). Sometimes known as the trailing edge fairings, the primary purpose of the FTFs is to enclose the actuation mechanism of wing flaps. The horizontal size of the fairing depends on the length of the flap track, which allows for extension and retraction.
Read More Here: What Are The Pods Found Under An Aircraft’s Wings? | SimpleFlying.com
via Flight Booking 247 Cheap Airline Tickets
