ACFT DAMAGED BY PREMATURE JETWAY REMOVAL WHICH TORE OUT PRONGS ON EXTERNAL PWR RECEPTACLE. EXTERNAL PWR WAS STILL CONNECTED TO ACFT. ACFT HAD TEMPORARY REPAIRS MADE AND REVENUE FLT MADE TO DEST ARPT FOR PERMANENT REPAIRS.

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AT MOB THE GATE AGENT MOVED THE JETWAY BACK BEFORE THE GND CREW HAD DISCONNECTED THE GND PWR. THE CORD WAS FORCEFULLY UNPLUGGED; WHICH DAMAGED THE ACFT RECEPTACLE. WE PULLED THE CIRCUIT BREAKERS FOR THE GND PWR; A LCL MAINT MAN COORDINATED WITH ACR'S MAINT BASE SUPVR AND VERIFIED THE PLUGS IN THE BROKEN RECEPTACLE WERE DE- PWRED. HE THEN PLACED SOME INSULATION IN AND AROUND THE RECEPTACLE PLUGS SO THAT EVEN IF THERE WERE SOME RESIDUAL PWR; THE PLUGS COULD NOT TOUCH AND CAUSE ARCING. WE THEN FLEW THE ACFT TO DEST ARPT SO THAT MAINT PERSONNEL COULD REPAIR THE DAMAGE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: CALLBACK TO RPTR REVEALED THAT THE REPAIRS WERE MADE BY THE LCL FBO MECH; IN COORD WITH THE SUPVR AT THE ACR'S MAINT BASE. THE PIC DID NOT KNOW IF ANY 'MAINT RELEASE' WAS ISSUED AS THE FBO MECH WAS THE ONLY ONE THAT SPOKE WITH MAINT BASE SUPVR. PIC WAS NOT AWARE OF ANY REQUIREMENT FOR MAINT RELEASE AND WAS CERTAIN THAT THERE WASN'T ANY REF TO THE DAMAGED UNIT IN THE MEL. THE LADY JETWAY OPERATOR WAS APPARENTLY NOT IN COM WITH THE CREW OR GND MAN AS SHE JUST LEFT THE ACFT AND; AFTER CLOSING THE DOOR; PULLED THE JETWAY. RPTR DOESN'T KNOW IF ACR POLICY IS IN EXISTENCE REF A CHKLIST OR COORD PROC FOR JETWAY OPERATORS TO FOLLOW. HE DID SEND A RPT IN TO THE ACR REF THIS EVENT. RPTR'S TONE DID NOT INDICATE ANY SENSE THAT HE MIGHT HAVE BEEN ILLEGAL FOR THIS REVENUE FLT. RPTR STATED THAT APU STARTS ARE NOW DELAYED UNTIL JUST AT PUSHBACK.