As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BRAKES CHATTER EXCESSIVELY WHEN APPLIED, EVEN LIGHTLY. THEY DO NOT CHATTER WHEN THE PARK/EMER BRAKE HANDLE IS USED. COMPLETED BRAKE BLEEDING PROCEDURE AND WE GOT SOME AIR BUBBLES OUT. COMPLETED A TAXI CHECK OF THE AIRCRAFT WITH NO MORE CHATTERING IN THE BRAKES. LEAK AND OPS CHECK GOOD WITH NO DEFECTS NOTED. ALL WORK DONE IAW EMB 505 AMM TASK 32-40-00-870-801-A