A lubrication system comprising; a fan shaft including a shaft gear disposed about the fan shaft ; a pump configured to supply a flow of lubricant to a component benefiting from lubrication; and an input gear train coupled to the shaft gear and configured to drive the pump with a unidirectional rotation in response to a forward rotation and a reverse rotation of the shaft gear , wherein the input gear train comprises: a primary gear coupled to a common shaft ; a forward shaft and a forward gear about the common shaft , wherein the forward gear is coupled to the forward shaft ; a reverse shaft and a reverse gear about the common shaft , wherein the reverse gear is coupled to the reverse shaft ; a forward clutch coupled to the forward shaft and a reverse clutch coupled to the reverse shaft , wherein the forward clutch and the reverse clutch are selectively coupled to the common shaft , wherein the forward clutch is configured to lock in response to rotating the common shaft in a first direction , wherein the reverse clutch is configured to lock in response to rotating the common shaft in a second direction ; an idler gear supported by an idler shaft and coupled to the reverse gear ; and a pump gear coupled to the forward gear and the idler gear , the pump gear supported by a pump shaft coupled to the pump . a fan shaft including a shaft gear disposed about the fan shaft ; a pump configured to supply a flow of lubricant to a component benefiting from lubrication; and an input gear train coupled to the shaft gear and configured to drive the pump with a unidirectional rotation in response to a forward rotation and a reverse rotation of the shaft gear , wherein the input gear train comprises: a primary gear coupled to a common shaft ; a forward shaft and a forward gear about the common shaft , wherein the forward gear is coupled to the forward shaft ; a reverse shaft and a reverse gear about the common shaft , wherein the reverse gear is coupled to the reverse shaft ; a forward clutch coupled to the forward shaft and a reverse clutch coupled to the reverse shaft , wherein the forward clutch and the reverse clutch are selectively coupled to the common shaft , wherein the forward clutch is configured to lock in response to rotating the common shaft in a first direction , wherein the reverse clutch is configured to lock in response to rotating the common shaft in a second direction ; an idler gear supported by an idler shaft and coupled to the reverse gear ; and a pump gear coupled to the forward gear and the idler gear , the pump gear supported by a pump shaft coupled to the pump . a primary gear coupled to a common shaft ; a forward shaft and a forward gear about the common shaft , wherein the forward gear is coupled to the forward shaft ; a reverse shaft and a reverse gear about the common shaft , wherein the reverse gear is coupled to the reverse shaft ; a forward clutch coupled to the forward shaft and a reverse clutch coupled to the reverse shaft , wherein the forward clutch and the reverse clutch are selectively coupled to the common shaft , wherein the forward clutch is configured to lock in response to rotating the common shaft in a first direction , wherein the reverse clutch is configured to lock in response to rotating the common shaft in a second direction ; an idler gear supported by an idler shaft and coupled to the reverse gear ; and a pump gear coupled to the forward gear and the idler gear , the pump gear supported by a pump shaft coupled to the pump . <EOS>