Philadelphia International Airport issued a ground stop on Thursday night after a plane suffered a hydraulic spill on Runway 27, a representative from the City of Philadelphia Department of Aviation told NBC10. The FAA issued a ground stop just before 8 p.m. and lifted the emergency order at arou nd 8:45 p.m. No injuries have been reported at this time. This is a developing story; check back for more updates. ...read more read less