As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AIRCRAFT TAXI, CAPTAINS AND F/O RT BRAKE PEDAL LOSSES PRESSURE WHEN APPLYING BRAKES. WHEN LOSING PRESSURE F/O PEDAL WENT TO THE FLOOR CAPTAINS SIDE WENT DOWN 2-3 INCHES. T/S AND FOUND RT CO-PILOTS MASTER CYLINDER LEAKING INTERNALLY REMOVED AND REPLACED CO-PILOTS LT AND RT MASTER CYLINDER TO BLED AND LEAK CHECKS WERE GOOD IAW MM 32-42-02.