What was found
ON TAKEOFF, BURNING LUBRICANT SMELL. WAS NOT DURING TAXI/GROUND IDLE DEBRIEFED CREW. SMELL DISSAPTED SHORTLY AFTER TAKEOFF. FIRST FLIGHT AFTER #1 ENGINE WATER WASH COMPLETED OVERNIGHT. DEBRIEFED CREW. CREW STATED SMELL DISSIPATED VERY SHORTLY AFTER TAKEOFF AND DID NOT RETURN. #1 ENGINE WATER WASH L/P 6226966 COMPLETED PRIOR TO THIS FLIGHT. NO FURTHER MAINTENANCE ACTION NEEDED. NO PRIOR HISTORY.