B767-200 Captain reported an uncontrollable EPR indication on the right engine during climb. The flight crew communicated with dispatch and maintenance and continued to the destination airport.

Narrative

On a climb out of ZZZ I encountered an uncontrollable RIGHT ENGINE Engine Pressure Ratio (EPR). The ECCs were deferred on [this aircraft] and we were aware of the problem and procedures for this MEL. But we encountered an uncontrollable problem (acceleration & deceleration) on the right engine after departing the runway and starting the 3rd segment of the climb. As Captain I requested a lower altitude; planned for FL370 and level off at FL330. At that stage I regained control of the engine; called the company and advised maintenance of the situation. Right EPR was unstable. (ATC was aware since they heard the conversation; they mentioned that they were aware and asked if help was needed; we mentioned that we had a power thrust issue but it was under control). Since everything was under control we continued to our original destination ZZZ1. Landed at ZZZ1 and talked to maintenance as soon as we parked the aircraft. Discrepancy was written up in the aircraft logbook. Also called maintenance and talked to Person A with a phone patch from our dispatcher. Person A mentioned on the phone call that they were having trouble lately with this aircraft (this issue happened before few times before).