What was found
DURING CLIMBOUT, AT ABOUT 1400 FT, RECEIVED A MASTER WARNING LT ENGINE OIL PRESSURE. OIL PRESSURE WAS FLUCTUATING FROM 15 PSI TO 66 PSI, RAN QRH DID NOT SHUTDOWN THE ENGINE KEEP ENGINE AT IDLE. ACFT RETURNED TO DEPARTURE AFTER T/O, EMERGENCY DECLARED. R & R LT ENGINE LUBE AND SCAVAGE ASSY IAW AMM 79-21-01, AIPC 79-21-11, FIG 1, ITEM 335G. SERVICE LT ENGINE OIL TANK, AND LEAK AND OPS CHECKS.