What was found
THE LT BRAKE PEDAL IS MUSHY & IT MUST BE FULLY DEPRESSED TO ACTIVATE THE BRAKES. FOUND EVIDENCE TO SUSPECT THAT THE CAPTAIN'S LT BRAKE MASTER CYLINDER, SN 4112, WAS BYPASSING INTERNALLY. THE CAPTAIN`S BRAKE MASTER CYLINDER WAS R & R IAW BMM 32-40-06. DURING TROUBLESHOOTING, FOUND THAT THE FIRST OFFICER`S RT BRAKE MASTER CYLINDER, SN 3923, WAS LEAKING. THE FIRST OFFICER`S RT MASTER CYLINDER WAS R & R IAW BMM 32-40-06.