As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BRAKE PEDALS GO TO THE FLOOR WITH MINIMAL BRAKING AUTHORITY. SYS WILL NOT HOLD PRESS. THE BRAKE SYS WAS INSPECTED & THE PILOTS LT BRAKE MASTER CYLINDER, PN 959.47.51.131, WAS FOUND TO BE FAULTY. IT WAS R & R IAW AMM 12-A-32-40-04-00A-920A-A. THE BRAKE SYS WAS BLED OF AIR & OPERATIONALLY CHECKED GOOD IAW AMM 12-A-32-40-00-00A-902A-A.