What was found
FLT 584 FLL-HPN DIVERTED TO JFK, AFTER DEPARTURE SHORTLY AFTER CLIMBING THROUGH 10,000 FT EMERGENCY PARKING BRAKE LIGHT ILLUMINATED INTERMITTENTLY. APPROX EVERY 20 SEC TO 1 MINUTE ASSOCIATED WITH "PARKING BRAKE NOT RELEASED" EICAS. (NOTE: QRH INDICATES PARKING BRAKE IS APPLIED IN FLIGHT PARKING BRAKE- RELEASE) THE PARKING BRAKE HANDLE IS IN THE RELEASED POSITION. AFTER 2130Z EMERGENCY PARKING BRAKE LIGHT & EICAS REMAINED ON UNTIL LANDING. REMOVED AND REPLACED EMERGENCY PARKING BRAKE PRESSURE SWITCH IAW 190 AMM 32-44-09. PARKING BRAKE FAULT CLEARED. OPS CHECK NORMAL.