A gas turbine engine , comprising: a power input (22; 122) and a power output (24; 124); and an epicyclic gear train engaged with the power input (22; 122) and with the power output (24; 124), the epicyclic gear train comprising: a sun gear defining a center axis and engaged with the power input (22; 122); a plurality of planet gears mounted to a carrier and engaged to the sun gear , the plurality of planet gears rotatable about respective planet gear axes , the plurality of planet gears and the carrier rotatable about the center axis , the carrier engaged with the power output (24; 124) at a carrier-output engagement location ; one or more ring gears in meshed engagement with the plurality of planet gears ; a plurality of planet gear bearings , each planet gear bearing disposed between one of the plurality of planet gears and the carrier , a lubrication interface defined between each planet gear bearing and the one of the plurality of planet gears ; and a bearing lubrication system including a lubricant supply conduit extending between a conduit inlet at the carrier-output engagement location and conduit outlets at the lubrication interfaces of the plurality of planet gear bearings , characterised in that : the bearing lubrication system includes a lubricant strainer mounted about the conduit inlet at the carrier-output engagement location . a power input (22; 122) and a power output (24; 124); and an epicyclic gear train engaged with the power input (22; 122) and with the power output (24; 124), the epicyclic gear train comprising: a sun gear defining a center axis and engaged with the power input (22; 122); a plurality of planet gears mounted to a carrier and engaged to the sun gear , the plurality of planet gears rotatable about respective planet gear axes , the plurality of planet gears and the carrier rotatable about the center axis , the carrier engaged with the power output (24; 124) at a carrier-output engagement location ; one or more ring gears in meshed engagement with the plurality of planet gears ; a plurality of planet gear bearings , each planet gear bearing disposed between one of the plurality of planet gears and the carrier , a lubrication interface defined between each planet gear bearing and the one of the plurality of planet gears ; and a bearing lubrication system including a lubricant supply conduit extending between a conduit inlet at the carrier-output engagement location and conduit outlets at the lubrication interfaces of the plurality of planet gear bearings , characterised in that : the bearing lubrication system includes a lubricant strainer mounted about the conduit inlet at the carrier-output engagement location . a sun gear defining a center axis and engaged with the power input (22; 122); a plurality of planet gears mounted to a carrier and engaged to the sun gear , the plurality of planet gears rotatable about respective planet gear axes , the plurality of planet gears and the carrier rotatable about the center axis , the carrier engaged with the power output (24; 124) at a carrier-output engagement location ; one or more ring gears in meshed engagement with the plurality of planet gears ; a plurality of planet gear bearings , each planet gear bearing disposed between one of the plurality of planet gears and the carrier , a lubrication interface defined between each planet gear bearing and the one of the plurality of planet gears ; and a bearing lubrication system including a lubricant supply conduit extending between a conduit inlet at the carrier-output engagement location and conduit outlets at the lubrication interfaces of the plurality of planet gear bearings , characterised in that : the bearing lubrication system includes a lubricant strainer mounted about the conduit inlet at the carrier-output engagement location . <EOS>