CAPT OF A B737-400 STARTED TAXIING PRIOR TO COMPLETE GND DISCONNECT AFTER PUSHBACK DUE TO DISTR OF OTHER ACFT TAXIING IN AND AROUND THE PARKING AREA. HE STOPPED IN TIME TO AVOID ANY INJURIES TO GND PERSONNEL OR THE ACFT.

Narrative

PUSHBACK FROM GATE 'X' AT FLL USING ICAO PUSHBACK PROCS. ACFT WAS PUSHED BACK OFF GATE X ON TXWY T. BOTH ENGS WERE STARTED UPON PUSHBACK OF GATE TO TXWY. PARK BRAKES WERE SET. GND CREW WAS INSTRUCTED TO STANDBY FOR DISCONNECT. MEANWHILE GND CTL ISSUED A TAXI CLRNC TO FOLLOW AN ACR Y L1011 TAXIING ON TXWY B WBOUND. HE WAS AT GATE ON TXWY B WBOUND. ALSO AN ACR Z WAS INBOUND TO GATE X. HE WAS COMING FROM APPROX POS OF TXWY B WBOUND TURNING ONTO TXWY S. THEN ACR Z TAXIED BTWN US AND TERMINAL. WHILE WE WERE WAITING FOR ACR Z WE ACCOMPLISHED AFTER START CHKLIST. ABOUT 2 MINS ELAPSED. HE WAS CLR. THIS IS WHEN I MOMENTARILY RELEASED PARKING BRAKE AND ACFT ROLLED FORWARD SLIGHTLY. TOW BAR WAS DISCONNECTED OFF NOSE GEAR. ACFT WAS STOPPED AND GND CREW WAS ASKED IF ANY DAMAGE OR INJURY; REPLY WAS NO. GND CREW WAS TOLD BRAKES WERE SET AND CLRED FOR DISCONNECT. GND CREW DISCONNECTED; SHOWED BYPASS PIN AND GAVE THUMBS UP. I FEEL THE 2 MIN WAIT FOR ACR Z INBOUND WAS MY DISTR. I MOMENTARILY FORGOT GND CREW WAS STILL CONNECTED. LUCKILY I CAUGHT MY ERROR QUICKLY WITH LITTLE ACFT MOVEMENT; NO ACFT DAMAGE OR INJURY TO PERSONNEL.