Which component is confirmed and then pulled and locked during jammed aileron scenarios?

In jammed aileron scenarios, the roll disc is the critical component that is confirmed and then pulled and locked. The roll disc serves as a mechanical backup that allows for lateral control of the aircraft when aileron control is compromised. By locking the roll disc, pilots can effectively manage and maintain aircraft stability and control, allowing for safe operation during a situation where aileron input is not available.

The other components, such as the wing flap control, landing gear handle, and throttle lever, are not specifically designed to address aileron movement issues. Their functions are pertinent to other aircraft control aspects and do not provide the necessary assistance in managing roll during a malfunction with the ailerons. This is why the roll disc is the appropriate choice for this particular situation.