Sunday evening Dec. 14th was a busy time for controllers at PHL. During that time they handled 3 emergencies. The biggest emergency was a US Air Express CRJ-2 (AWI 3918) which was unable to deploy the left main landing gear. That aircraft landed and the three crew members aboard all evacuated safely after the aircraft stopped. Prior to this 2 other aircraft had declared emergencies due to low fuel and landed successfully. I'm trying to edit down the archive now and will post it if I am able to do so. Below is a link to a local TV station story about the incidents.
http://cbs3.com/topstories/Private.Jet.Emergency.2.887260.html