What was found
AFTER SECOND ENGINE START, AFTER PUSHBACK, HAD WHITE SMOKE IN THE COCKPIT FROM BEHIND THE GLARESHIELD IN VICINITY OF THE GEAR HANDLE. SMOKE CLEARED WITHIN APPROXIMATELY 1 MINUTE. BLOCKED BACK INTO GATE AND HAD FIRE DEPARTMENT AND MAINTENANCE CHECK THE AIRPLANE. DURING T/S FOUND PINS 1 & 2 INTERNALLY SHORTED IN NOSE KORRY LIGHT HOUSING ASSY 434- 1033-2203, WIRING AND TERM'S ARE SAT. R/I L654 NOSE KORRY LIGHT ASS 434-674-1033-2210 (BCREF11704) AND OPS NORMAL IAW B767 ABOVE REF'S.