As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATC DECLARED EMERGENCY FOR PARKING BREAK MESSAGE ON EICAS PRKG BRK NOT RELEASED EICAS INITALLY CLRD BUT RETURNED CLEARED AGAIN PRKG BRAKE ON DID ILLUMINATE WITH OUT THE EICAS SHORTLY ASWELL-C/A-FOUND LH LANDING GEAR #1 BRAKE CANNON PLUG TO BE LOOSE. RE TIGHTENED AS REQUIRED AND ACCOMPLISHED EMERGENCY/PARKING BRAKE SYSTEM TEST IAW AMM 32-44-00. OPS CHECK GOOD