What was found
DURING CLIMB, AROUND FL250, RECEIVED AN EICAS MESSAGE "DOOR PAX AFT OPEN". STATUS PAGE ON MFD INDICATES L2 DOOR OPEN. F/A VISUALLY INSPECTED THE DOOR. LATCH INDICATOR WAS .2500 AND .5 GREEN. MESSAGE WENT AWAY DURING DESCENT/ LATCH INDICATOR GREEN. MESSAGE WENT AWAY. R & R ELASTIC PIN IN THE L2 DOOR LOCK/LATCH ASSY ON SIDEWALL REF AMM 53-23-21. ACCOMPLLISHED FIM 52-12-00-810-804-A. ADJUSTED L2 DOOR FWD UPPER STEPS REF AMM 52-12-00. OPS TEST SATISFACTORY.