What was found
SMOKE WITH A PETROLEUM SMELL ENTERED THE COCKPIT UPON ROTATION LEAVING EWR. A RETURN TO EWR WAS BEGUN AND THE SMOKE CEASED AFTER FIVE MINUTES WITH NO FURTHER PROBLEMS NOTED. THE AIRCRAFT LANDED AT EWR WITHOUT INCIDENT. THE #1 ENGINE WAS REMOVED AND REPLACED. THE SDR WILL REMAIN OPEN FOR PART INFORMATION PENDING INVESTIGATION. **S/P** INVESTIGATION DETERMINED THAT THE SMOKE AND ODOR WERE THE RESULT OF LUBRICANTS USED IN ACCOMPLISHMENT OF ENGINE TOP CASE PRIOR TO THIS FLIGHT(ENGINE HAD JUST BEEN INSTALLED). ECRA 7100-01296 WAS RELEASED AS A RESULT TO SCREEN FOR VIBRATION, SMOKE, AND FUMES FOLLOWING TOP CASE/INSTALLATION. BOEING IS IN THE PROCESS OF REVISING ENGINE INSTALLATION TEST REQUIREMENTS. GE-ON-WING SUPPOR