An apparatus for air-through cooling of aircraft galley food carts, comprising: a chilled galley food cart bay having a front portion and a rear portion, said chilled galley food cart bay being configured to removably receive a suitable aircraft galley food cart at said front portion of the chilled galley food cart bay; and a galley chiller air supply and return ducting assembly disposed at said rear portion of said chilled galley food cart bay, said galley chiller air supply and return ducting assembly being configured to be removably connected to a suitable aircraft galley food cart received in said chilled galley food cart bay, said air supply and return ducting assembly including a supply airflow duct and a return airflow duct, said supply airflow duct having a supply airflow duct inlet portion configured to receive a chilled supply airflow from a chiller unit and a supply airflow duct outlet portion configured to supply the chilled supply airflow to the aircraft galley food cart, characterised in that said return airflow duct is bifurcated and includes an air return inlet portion configured to receive a return airflow from the aircraft galley food cart and a pair of bifurcated return airflow duct portions (25a, 25b) extending from said air return inlet portion and passing on opposing sides of said supply airflow duct, said pair of bifurcated return airflow duct portions including a pair of air return outlet portions (32a, 32b) configured to deliver the return airflow to the air chiller for recooling; wherein said supply airflow duct outlet portion and said air return inlet portion each include a spring loaded sealing flap biassed outwardly by a flap closure spring to a closed position, wherein said spring loaded sealing flap is moveable inwardly to an open position by inward pressure against the spring loaded sealing flap by contact with a portion of the galley food cart. a chilled galley food cart bay having a front portion and a rear portion, said chilled galley food cart bay being configured to removably receive a suitable aircraft galley food cart at said front portion of the chilled galley food cart bay; and a galley chiller air supply and return ducting assembly disposed at said rear portion of said chilled galley food cart bay, said galley chiller air supply and return ducting assembly being configured to be removably connected to a suitable aircraft galley food cart received in said chilled galley food cart bay, said air supply and return ducting assembly including a supply airflow duct and a return airflow duct, said supply airflow duct having a supply airflow duct inlet portion configured to receive a chilled supply airflow from a chiller unit and a supply airflow duct outlet portion configured to supply the chilled supply airflow to the aircraft galley food cart, characterised in that said return airflow duct is bifurcated and includes an air return inlet portion configured to receive a return airflow from the aircraft galley food cart and a pair of bifurcated return airflow duct portions (25a, 25b) extending from said air return inlet portion and passing on opposing sides of said supply airflow duct, said pair of bifurcated return airflow duct portions including a pair of air return outlet portions (32a, 32b) configured to deliver the return airflow to the air chiller for recooling; wherein said supply airflow duct outlet portion and said air return inlet portion each include a spring loaded sealing flap biassed outwardly by a flap closure spring to a closed position, wherein said spring loaded sealing flap is moveable inwardly to an open position by inward pressure against the spring loaded sealing flap by contact with a portion of the galley food cart.