What was found
CREW NOTICED WHEN DEPARTING THE AIRCRAFT, WHAT APPEARS TO BE A BULB SEAL HANGING FROM THE AFT TE OF THE NR 1 ENG THRUST REVERSER ON THE RT HAND SIDE. REVERSER HALF OPENED FOR ACCESS WAS ABLE TO RESEAT BULB SEAL IN ITS TRACK, REVERSER CLOSED & SECURED, OK TO CONTINUE.