As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. DOOR 4R MAKING VERY LOUD INTERMITTENT AIR LEAK NOISE THAT DOESN'T STOP COMING FROM BASE OF DOOR. MAINTENANCE FOUND GIRT BAR SLIDE LANYARD CORD OBSTRUCTING 4R DOOR SEAL AND PROPERLY STOWED AWAY CORD. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.