As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT BRAKE PEDAL ON CAPTAINS SIDE GOES NEARLY TO THE FLOOR. COPILOTS SIDE NORMAL. GAINED ACCESS AND REMOVED PILOT SIDE LT BRAKE MASTER CYLINDER AND INSTALLED AN OVERHAULED UNIT AND SECURED BLED SYST. AS REQUIRED OPS CHECKED SATISFACTORY I.A.W CE-560XL M/M CHAPTERS 32-42-02 AND 32-42-00.