As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT BRAKE PEDAL ON CO-PILOTS SIDE NEARLY GOES TO THE FLOOR DURING BRAKE APPLICATION. OPERATION ON PILOTS SIDE APPEARS NORMAL. R & R LT BRAKE PEDAL MASTER CYLINDER ON COPILOTS SIDE WITH AN OVERHAULED UNIT. BLED BRAKES SYS; OPS CHECK SATISFACTORY IAW MM CHAPTER 32-40-00.