What was found
AFTER TAKEOFF, LG DOOR NOT CLOSED, FAULT APPEARED ON ECAM. AFTER ALL CHECKLISTS WERE COMPLETED RT MAIN GEAR DOOR REMAINED OPENED. ACCOMPLISHED WITHOUT 1570 319 NO4 & ERO 3231-001. OPERATIONS & LEAKS CHECK GOOD, NO LEAKS NOTED IAW AMM 32-33-00, 32-31-00 & 32-12-16. THIS ACTION CLEARS DMI 17898 & MEL 32-12-01A. MCC NOTIFIED & ALL PLACARD REMOVED.