What was found
FLIGHT ATTENDANT HEARD A POPPING SOUND FOLLOWED BY A SQUEAKING WHEEZING SOUND FROM FRONT ENTRY DOOR NEAR THE BOTTOM; PRESSURIZATION REMAINED STABLE THROUGH THE FLIGHT.<[01] REMOVED AND REPLACED FWD ENTRY DOOR SCUFF PLATE PER AMM.53-11-01;[02] REPLACED LEVELING COMPOUND ON RIGHT SIDE OF THE FWD ENTRY DOOR SCUFF PLATE PER AMM 53-11-01. PRESSURIZED AIRCRAFT PER AMM 05-51-91. NO LEAKS OR NOISES NOTED.;[03] REMOVED AND RESEALED THE FWD ENTRY DOOR SCUFF PLATE PER AMM 53-11-01