Described are passenger seat assemblies having a seat back support, a seat pan coupled to the seat back support, a seat support structure coupled to the seat pan, wherein the seat support structure comprises a mounting channel, and a mounting bar inserted through the mounting channel and coupled to the seat support structure. The mounting bar is configured to pivotally couple to a passenger cabin. The mounting bar may also be configured to rotate the passenger seat assembly between an upright position and a reclined position.