As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, THE CREW RECEIVED A PARKING BRAKE ON INFLIGHT WARNING LIGHT. AN EMERGENCY WAS DECLARED. THE LANDING AND ROLLOUT WAS NORMAL AND THE ACFT TAXIED TO THE DESIGNATED RAMP PARKING. R & R RELAY 90UU122 IAW MM 20-46-50, NO HELP. REMOVED PARKING BRAKE CONTROL HANDLE IAW MM 32-45-11-04, STEPS 2.A(1) THRU (8). R & R NR1 FWC IAW MM 31-53-34-04. COMPLETED INST OF BRAKE HANDLE IAW MM 32-45-11- 04. OPS CHK NORMAL. NO PARKING BRAKE ON.