As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT STUCK ON RUNWAY DUE TO 'LOCKED BRAKES' ON TWO FLIGHTS. MAINTENANCE FOUND NO DEFECTS IN BRAKE SYSTEMS. FOUND PUSH TO TALK COIL CORD FROM PILOT'S YOKE WOULD WRAP AROUND PARKING BRAKE 'T' HANDLE AND ENGAGE PARKING BRAKE WHEN YOKE PULLED AFT.