AIRCRAFT SEAT AND SEAT MANAGEMENT SYSTEM

Provided is an aircraft seat that enhances passenger comfort and reduces the burden on cabin attendants. The aircraft seat includes a base (BS) with a relatively movable seat portion (BS1) and a backrest portion (BS2); an actuator (ACT) for relatively moving the seat portion and the backrest portion; a biometric sensor (SS) installed on the base and configured to obtain biometric information of a passenger; a plurality of elastic members (AS) installed on the base; a modification device (PS) configured to change an elastic force of at least one elastic member (AS), and a control device (CONT), wherein the control device operates the actuator (ACT) or the modification device (PS) in response to a signal from the biometric sensor (SS).