What was found
WHEN RAMP PERSONNEL PLUGGED IN EXTERNAL POWER CORD, A LARGE POPPING NOISE FOLLOWED BY A STRONG ELEC SMELL & SOME SMOKE FIRST OFFICER`S SIDE. TROUBLESHOT TO EXTERNAL POWER RECEPTACLE 00-0362-3-0006, APU & ENG GEN POWER OPERATES NORMAL. PLACED ON MEL UNABLE TO REPLACE EXTERNAL CONNECTOR, SEALANT CURE TIME, OUTSIDE TEMPERATURE. EXTERNAL 247492, MEL REMAINS. INSPECTED A/C IAW 05-51-26 & FOUND EXTERNAL POWER RECEPTACLE BURNED SEVERELY. REATTACHED NON ROUTINES & FORMS 44.0008 FOR REPLACEMENT OF RECEPTACLE & WIRING. EXTERNAL POWER OPERATES NORMAL.