What was found
SHORTLY AFTER TAKE OFF AT 240KTS THE F/A ADVISED THAT LOUD AIR NOISE AND VIBRATION COMMING FROM THE SERVICE DOOR. SLOWING THE AIRPLANE LESSENED THE NOISE AND VIBRATION-C/A-REMOVED STACK OF BLUE SECURITY STICKERS FROM SERVICE DOOR SEAL. CLEANED DOOR SEAL AS REQUIRED. PERFORMED FUNTIONAL CHECK AND INTEGRITY CHECK OF DOOR COMPONENTS IAW EMB 145MM 52-43-03. PERFORMED PRESSURIZATION CK OF A/C IAW EMB 145MM 21-31-00. OPS CK GOOD NO DEFECTS NOTED.