AN AIRBUS 300 ON CLBOUT AT FL200 DECLARED AN EMER AND DIVERTED DUE TO SMOKE AND FUMES IN THE COCKPIT AND CARGO MAIN DECK CAUSED BY #1 ENG INTERNAL AND EXTERNAL OIL LEAK.

Narrative

SHORTLY AFTER TKOF; THE CAPT CALLED FOR GEAR UP; AND UPON COMPLETION; THE SMOKE MASTER WARNING PANEL WENT ON; AND THE BELL CHIMED. THE SO SILENCED THE BELL AND DECLARED THAT THERE WAS SMOKE IN THE L PORTION OF THE MAIN CARGO DECK. SHORTLY AFTER THAT; THE CAPT AND I ARGUED THAT WE SMELLED SMOKE. I SWITCHED OVER TO DEP CTL AS THE CAPT CALLED FOR SMOKE ON THE FLT DECK; AND WE DONNED AIR MASKS AND GOGGLES AND ESTABLISHED COMS. WE THEN DECLARED AN EMER AND BEGAN A R TURN FOR A R DOWNWIND FOR RWY 28R AT SFO. WHILE THE CAPT FLEW THE APCH TO A LEVEL OFF HEIGHT; I GAVE THE CTLR OUR SOULS ON BOARD AND FUEL; THE SO WORKED ON THE COMPLETION OF THE EMER CHECKLIST; AND THE SMOKE BEGAN TO CLEAR. WE CONTINUED THE TFC PATTERN AND LANDED ON RWY 28R WITHOUT FURTHER INCIDENT. WE TAXIED TO PARKING AND WERE FOLLOWED BY LOCAL FIRE AUTHS. NO FURTHER EVENTS OCCURRED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE CAUSE OF THE SMOKE WAS AN INTERNAL AND EXTERNAL ENG OIL LEAK; ALLOWING OIL TO ENTER THE ENG BLEED DUCTS DIRECT TO THE AIR CONDITIONING PACKS. THE RPTR STATED THE ENG WAS A GENERAL ELECTRIC CFM56-502C AND WAS REPLACED. THE RPTR SAID THE NATIONAL TRANSPORTATION SAFETY BOARD REQUESTED AND REMOVED THE COCKPIT VOICE RECORDER AND FLT DATA RECORDER.