As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#JFK-PBI. (AIRCRAFT PERFORMED AN AIR TURN BACK TO JFK AND DECLARED AN EMERGENCY) 'PRKG BRK NOT RELEASED IN AIR; TROUBLESHOT PER TSM 32-41-00-810-863A; REMOVED AND REPLACED EMERGENCY PARKING BRAKE VALVE REF AMM 32-44-01. OPS NORMAL.'