What was found
LT ENGINE OIL PRESSURE SHOULD 47-55 PSI ON TAKEOFF ROLL, ON CLIMB OUT THRU 9000 FT OIL PRESSURE DROPPED BELOW 30 PSI, IN CONJUNCTION WITH "LOW OIL PRESSURE" TRIPLE CHIME. FOLLOWED QRH. AT IDLE, OIL PRESSURE STABILIZED AT 39 PSI .LT IT AT IDLE. (ACFT RETURNED TO DEPARTURE AFTER T/O -- EMERGENCY DECLARED) SERVICED LT ENGINE,TOOK 5 QUARTS. PERFORMED INSP OF LUBRICATION SYS IAW FIM PROCEDURES GE CF-34 3A1 AND 3B1 SPECIAL INSP 15. NO DESCREPANCIES FOUND. PERFORMED OIL CONSUMPTION RUNS ON NR1 ENGINE , NR1 ENGINE WITHIN LIMITS IAW AMM 72-00-00. (CLOSED)