As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE FROM MIA THE PILOT NOTED THE LT ENGINE COWLING HAD POPPED OPEN AND WAS COLLAPSED AGAINST THE ENGINE. POWER TO THE AFFECTED ENGINE WAS REDUCED AND A UNEVENTFUL LANDING IN MIA WAS PERFORMED. MX INSPECTED THE AIRFRAME , ENGINE AND COWLING AND SUSPECTED A DEFECTIVE LATCH. THE COWLING ASSY WAS REPLACED WITH A SERVICEABLE UNIT AND THE ACFT WAS RELEASED TO SERVICE. AS A MATTER OF RECORD, AD2009-10-13 WAS PERFORMED ON THIS ACFT MAY 26, 2009 AND NO DEFECTS WERE NOTED AT THAT TIME. THIS PROBLEM IS UNRELATED TO THE REQUIREMENTS OF THAT AD.