What was found
ON LANDING ROLL OUT, HAD THE CABIN DOOR 1L APPEAR. AFTER COMING TO A STOP ON THE TAXIWAY, INSPECTED DOOR & ALL WAS NORMAL, EXCEPT FOR ARMED TAB FOR GIRT BAR WENT OUT AFTER HOOKING UP TO THE TUG. INSPECTED THE ARMED TAB FOR GIRT BAR & FOUND THE WHITE DECORATIVE TRIM OUT OF ITS TRACK & OBSTRUCTING VIEW. RESEATED TRIM INTO TRACK & ARMED TAB IS NOW VISIBLE. RELEASED FOR SERVICE IAW MEL 52-40-01-01-A CATEGORY C, EXPIRATION 14 DEC 15. DOOR L1 ALERT SYS INOPERATIVE. VERIFY DOOR IS CLOSED, LOCKED & ARMED PRIOR TO BLOCK OUT. ROLLER ON SLIDING CEILING PANEL LOOSE & BINDING. TIGHTENED FASTENER & OPS OK IAW AMM 52-11-00-5.