What was found
SMOKE AND FUMES IN COCKPIT AND CABIN AFTER ROTATION. SMOKE LEFT COCKPIT FOR ABOUT 5 MINUTES STAYED IN CABIN UNTIL AFTER THRUST REVERSER DEPLOYMENT. / REMOVED AND REPLACED RH SEAL PRESSURE-REGULATOR VALVE E-SEAL IAW AMM 75-41-01-000/400-801-A01 AND PERFORMED FUEL AND OIL SYSTEM LEAK CHECK IAW AMM 71-00-00-790-807-A01. INSPECTED AND T/S FOR SMOKE AND FUMES IN COCKPIT AND CABIN PER FIM 21-21-00-810-806-A01.SMOKE DID NOT REAPPEAR AND NO SMELL WAS NOTICED OFF WITH JUST APU AND PACKS. ALSO, ENGINES WERE STARTED AND RUN AT IDLE; THE SMELL DIDN€™T OCCUR. ENGINES WERE TAKEN UP TO T/O POWER WITH CREW THE SMELL STILL DIDN€™T OCCUR. NO SMOKE OR FUMES NOTED AT THIS TIME.