As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED 'MUSHY' BRAKE RESPONSE FROM COPILOT'S LEFT PEDAL. INSPECTION REVEALED VERY LOOSE PEDAL. FOUND BEARING FOR PEDAL TORQUE TUBE MISSING. SUBMITTER SUSPECTED BEARING WAS NOT INSTALLED AT FACTORY. REPLACED BEARING. OPS CHECK OK. AC TT: 146.6 HOURS.