A B737-200 ON LEVELOFF AT 12000 FT DECLARED AN EMER AND DIVERTED DUE TO LOSS OF #1 ENG OIL PRESSURE AND QUANTITY. CAUSE UNKNOWN.

Narrative

ON JAN/XA/01; WE TOOK OFF FROM LGA TO PBJ. WE HAD A NORMAL TKOF. THE WX THAT MORNING WAS IMC; WITH A RPTED VISIBILITY OF 2 1/2 MI. THE CEILING WAS APPROX 1000 FT TO 800 FT. AS WE WERE ON VECTORS DURING THE DEP; AND LEVELED AT 12000 FT; WE REALIZED THE #1 LOW OIL PRESSURE LIGHT WAS ILLUMINATED. I (THE FO) WAS THE PF. THE CAPT OPENED THE QRH AND STARTED TO READ AND DO THE PROC. WHEN HE FINISHED THE LOW OIL PRESSURE PROC; AND AFTER COMMANDED BY THE QRH TO FOLLOW WITH AN ENG SHUTDOWN; HE TOOK OVER THE CTLS OF THE ACFT; AND I CONTINUED WITH THE REST OF QRH CHKLISTS; SHUT DOWN AND SINGLE ENG APCH AND LNDG. AT THAT TIME; WE DECLARED AN EMER AND RETURNED TO LGA. WE LANDED AND STOPPED NORMALLY AND WITHOUT ANY FURTHER PROBS. THEN WE TAXIED TO THE GATE AND THE PAX WALKED INTO THE TERMINAL UNEVENTFULLY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE CAUSE OF THE LOSS OF #1 ENG OIL PRESSURE AND QUANTITY IS UNKNOWN AS MAINT MADE NO RPT TO THE CREW. THE RPTR SAID A VISUAL CHK OF THE ENG ON THE GND REVEALED HVY POOLING OF OIL IN THE TAILPIPE.