AN ACR B727 FLC HAS THE #1 GENERATOR'S CONSTANT SPD DRIVE OVERHEAT DURING THEIR INITIAL CLB OUT. THE FLC TOOK THE ELECTRICAL LOAD OFF THE GENERATOR; DECLARED AN EMER AND RETURNED TO THEIR DEP ARPT FOR A SUCCESSFUL LNDG WITH NO INJURIES.

Narrative

AFTER TKOF ON RWY 27R CLBING THROUGH 1800 FT MSL FLT ATTENDANT #2 CHIMED FLT DECK 4 TIMES RPT BURNING/HOT METALLIC SMELL IN THE AFT CABIN. WE TEMPORARILY LEVELED AT 2000 FT MSL NOTED AN ACRID SMELL ACCOMPANIED BY LIGHT SMOKE OR HAZE FILLING THE COCKPIT SO WE IMMEDIATELY DONNED OUR OXYGEN MASKS AND SMOKE GOGGLES. WE NOTIFIED ATC OF AN IMPENDING PROB AND CLBED TO 3000 FT MSL. I HAD THE COPLT FLY AND TALK TO DEP CTLR. WE DECLARED AN EMER. WE NOTICED THE #1 ENG CONSTANT SPD DRIVE 'IN' TEMP PEGGED FULLY TO THE HOT SIDE OF THE GAUGE -- DOWNLOADED. THIS CLRED FLT DECK IMMEDIATELY. WE COMPLETED SMOKE REMOVAL EMER CHKLIST. ENG #1 CONSTANT SPD DRIVE IN TEMP DECREASING FROM FULLY PEGGED THROUGH MIDDLE OF CAUTION RANGE. NOTIFIED FLT ATTENDANTS OF INTENT TO RETURN AND LAND MIA. THROUGH AIRPHONE (SWITCH TO OFF) MADE PA TO PAX. LANDED RWY 27L WITH 30 DEGS FLAPS AND GROSS WT 154300 LBS. STOPPED ACFT ON RWY 27L. CFR CREWS EXAMINED EXTERIOR OF ACFT NOTED AND RPTED NOTHING UNUSUAL. LEFT FLAPS DOWN AND PROCEEDED TO GATE WITH CFR EQUIP ESCORT. MAINTAINED CONSTANT CONTACT WITH FLT ATTENDANTS. CHOCKED WHEELS AT GATE. CANCELED EMER WITH MIA CFR. DEPLANED PAX AND COMPLETED PARKING SHUT/TERMINATION CHKLIST.