Broken jack plug lodged in phones socket of Behringer Q502USB mixer

When I removed my headphones from the headphone socket of this mixer the end of the jack plug (10mm below the lowest ring) became detached, and is now stuck in the base of the headphone socket. This prevents me from plugging in other headphones, and has effectively disabled the headphone socket. Does anyone know whether it would be feasible to disassemble this unit to remove the detached segment of jack plug?