What was found
AFTER TAKEOFF F/A NOTIFIED FLIGHT CREW OF SMOKE IN THE CABIN. ALL SYSTEM AND INDICATION NORMAL, BOTH TEMP PACK GAUGES WERE BOTH INDICATING AT THE 2 O`CLOCK POSITION. AFTER 10 MINUTES, SMOKE CLEARED. MAINTENANCE DEPARTMENT PERSONNEL TROUBLESHOT TO THE RIGHT PACK TEMP CONTROLLER, MANUAL WORKS NORMAL. REMOVED AND REPLACED AIR CONDITIONING PRESSURE REGULATOR VALVE, RIGHT SIDE. PERFORMED ADJUSTMENT AND TEST REF MM 21-31-01, NO FAULT NOTED. AIRCRAFT RETURNED TO SERVICE.