What was found
L2 DOOR HANDLE DOES NOT STAY IN CLOSED POSITION IN FLIGHT. DEBRIEFED WITH FLT CREW. AFT ENTRY DOOR WARNING INDICATION WAS SHOWN INTERMITENTLY, & FA REPORTED HANDLE WAS MOVING ON ITS OWN APPROX 1/2". NO PRESSURIZATION FLUCTATIONS NOTED. PERFORMED GVI OF AFT ENTRY DOOR LATCH RECEIVERS. OPENED AND CLOSED AFT DOOR USING INTERIOR & EXTERIOR HANDLES IAW AMM 52-13-00. NO DEFECTS NOTED. PERFORMED SOFT UNLATCHING TASK ON AFT DOOR IAW AMM 52-13-00-820-802. NO DEFECTS NOTED. CONTINUED TROUBLE SHOOTING, & FOUND AFT DOOR STOP PINS L2 AFT POSTIONS 2 & 3 ARE OUT OF ADJUSTMENT. ADJUSTED STOP PINS IAW AMM 52-13-00-820-801, ALL OF STEP Q.1(A)-(D). PERFORMED AFT ENTRY DOOR SYSTEM TEST MM 52-13-00-700-805.