A passenger seat; comprising: a seat pan; a backrest frame coupled to the seat pan; a backrest supported by the backrest frame; and an adjustment mechanism coupling the backrest to the backrest frame, the adjustment mechanism operable to change a position of the backrest relative to the seat pan; wherein the backrest frame includes: a fixed frame including spaced vertical members and at least one transverse member; and a moving frame movably coupled to the fixed frame; wherein movement of the moving frame relative to the fixed frame in a first direction causes the backrest to translate forward relative to the seat pan, and movement of the moving frame relative to the fixed frame in a second direction opposite the first direction causes the backrest to translate rearward relative to the seat pan; and characterized in that the adjustment mechanism includes: an actuator rotatably disposed through an opening formed in the at least one transverse member of the backrest frame, the actuator having an externally threaded end threadably engaged in an internally threaded opening formed in the moving frame, wherein rotating the actuator in a first rotational direction advances the actuator in the internally threaded opening to raise the moving frame relative to the fixed frame and rotating the actuator in a second rotational direction opposite the first rotational direction lowers the moving frame relative to the fixed frame; and a plurality of links coupled between the moving frame and the backrest, wherein the plurality of links translate the backrest forward as the moving frame raises and translate the backrest rearward as the moving frame lowers relative to the fixed frame. a seat pan; a backrest frame coupled to the seat pan; a backrest supported by the backrest frame; and an adjustment mechanism coupling the backrest to the backrest frame, the adjustment mechanism operable to change a position of the backrest relative to the seat pan; wherein the backrest frame includes: a fixed frame including spaced vertical members and at least one transverse member; and a moving frame movably coupled to the fixed frame; wherein movement of the moving frame relative to the fixed frame in a first direction causes the backrest to translate forward relative to the seat pan, and movement of the moving frame relative to the fixed frame in a second direction opposite the first direction causes the backrest to translate rearward relative to the seat pan; and characterized in that the adjustment mechanism includes: an actuator rotatably disposed through an opening formed in the at least one transverse member of the backrest frame, the actuator having an externally threaded end threadably engaged in an internally threaded opening formed in the moving frame, wherein rotating the actuator in a first rotational direction advances the actuator in the internally threaded opening to raise the moving frame relative to the fixed frame and rotating the actuator in a second rotational direction opposite the first rotational direction lowers the moving frame relative to the fixed frame; and a plurality of links coupled between the moving frame and the backrest, wherein the plurality of links translate the backrest forward as the moving frame raises and translate the backrest rearward as the moving frame lowers relative to the fixed frame. a fixed frame including spaced vertical members and at least one transverse member; and a moving frame movably coupled to the fixed frame; wherein movement of the moving frame relative to the fixed frame in a first direction causes the backrest to translate forward relative to the seat pan, and movement of the moving frame relative to the fixed frame in a second direction opposite the first direction causes the backrest to translate rearward relative to the seat pan; and characterized in that the adjustment mechanism includes: an actuator rotatably disposed through an opening formed in the at least one transverse member of the backrest frame, the actuator having an externally threaded end threadably engaged in an internally threaded opening formed in the moving frame, wherein rotating the actuator in a first rotational direction advances the actuator in the internally threaded opening to raise the moving frame relative to the fixed frame and rotating the actuator in a second rotational direction opposite the first rotational direction lowers the moving frame relative to the fixed frame; and a plurality of links coupled between the moving frame and the backrest, wherein the plurality of links translate the backrest forward as the moving frame raises and translate the backrest rearward as the moving frame lowers relative to the fixed frame. an actuator rotatably disposed through an opening formed in the at least one transverse member of the backrest frame, the actuator having an externally threaded end threadably engaged in an internally threaded opening formed in the moving frame, wherein rotating the actuator in a first rotational direction advances the actuator in the internally threaded opening to raise the moving frame relative to the fixed frame and rotating the actuator in a second rotational direction opposite the first rotational direction lowers the moving frame relative to the fixed frame; and a plurality of links coupled between the moving frame and the backrest, wherein the plurality of links translate the backrest forward as the moving frame raises and translate the backrest rearward as the moving frame lowers relative to the fixed frame.