What was found
AC WAS GROUNDED DUE TO AN SDR REPORTABLE EVENT REPORTED ON LP390249, ITEM 2: CABIN PRESSURE CLIMB RATE FLUCTUATED BETWEEN 0 AND 900 FEET PER MINUTE ON THE CLIMB. EVERYONE'S EARS POPPING BUT SYSTEM WAS NOT AS BAD AS PREVIOUS FLIGHT. FLIGHT ATTENDANTS REPORT WHISTLING SOUND FROM RIGHT AFT DOOR. EVERYTHING NORMAL AT CRUISING ALTITUDE OF 25000. AFTER PRESSURE TEST FOUND R2 DOOR REAL LEAKING. REMOVED AND REPLACED R2 DOOR SEAL PER AMM 52-13-18-400-001A PRESSURE TEST OK. NO FURTHER DEFECTS NOTED.