The incident was reported slightly different:
04 JAN 2007 Onur Air MD-88 suffers in-flight opening of cargo door
On January 1 the cargo door of an MD-88 operated by Onur Air opened during takeoff. The aircraft lost pressure while climbing through an altitude of 6000 feet. The crew decided to return to Istanbul. Upon touchdown the cargo door sprang open, causing luggage to fall onto the runway. (Flight International)
http://aviation-safety.net/news/newsitem.php?id=1748