What was found
AIRCRAFT WAS GROUNDED: DURING ENROUTE CLIMB FLIGHT ATTENDANT REPORTED DOOR 4R CABIN PRESSURE WARNING LIGHT FLASHING. THEY REPORTED THAT IT WOULD STOP FLASHING IF THEY PRESSED ON THE SLIDE ARM LEVER, BUT LEVER WOULDN'T STAY FULLY SEATED. THIS WAS CONFIRMED ON DOOR PAGE ON EWD. DOOR INDICATION IS CLOSED/GREEN, BUT DOOR NOT ARMED. DIFFERENTIALPRESSURE WAS ABOVE 2.0 PSI WHEN DISCOVERED. ALL DOORS SHOWED ARMED AT PUSHBACK. MAINTENANCE REPLACED PRESSURE SWITCH 14WN PER AMM 52-73-12 (AALA202601271554) AND PROXIMITY SENSOR 7WN2 PER AMM 52-73-11 (AALA202601278222). A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.