What was found
AFTER TAKEOFF, CREW HEARD THUMPING SOUND OUTSIDE OF AIRCRAFT ON F/O SIDE. AIRCRAFT RETURNED TO LIT AND FOUND GROUND COMMUNICATION DOOR OPEN. INSPECTED GROUND COMMUNICATION DOOR AND SURROUNDING AREA, NO DAMAGE NOTED. FOUND FORWARD LATCH HARD TO CLOSE. REWORKED LATCH, IAW CRJ 700, SRM 51-71-00. FUNCTION CHECKED GOOD. RETURNED AIRCRAFT TO SERVICE. (M)