As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA FLIGHT ATTENDANT REPORTED LT NR 1 DOOR HANDLE HAD POPPED OUT OF STOW POSITION WITH NOTICEABLE AIR LEAK. NO COCKPIT INDICATION OF OPEN DOOR. FLIGHT RETURNED MIA LANDED WITHOUT INCIDENT. MX FOUND OUTER DOOR HANDLE IN VERTICAL OPEN POSITION. REPLACED LT NR 1 DOOR HANDLE SPRING. SYS GND CHECKED NORMAL OPERATION CLOSED.