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Falcon 7X: Corrosion On RAT Retract Pump Piston

November 2018

After the RAT (Ram Air Turbine) is deployed on a Falcon 7X aircraft, a hydraulic re-stow pump is used to retract the unit back into the fuselage using task card 24-50-00-910-804. 

Duncan Aviation technicians have been noticing light corrosion on the pump piston. We highly recommend you apply a thin coat of MIL-H-5606 hydraulic fluid before final stowage of the unit.   

RAT Pump