JBS> Pesky doors: From
http://aviation-safety.net/index.shtml
20 AUG 2002 Following two Airbus A.300 incidents in which crew members were forcibly ejected when opening the aircraft doors, the NTSB issued 3 safety recommendations to the FAA. It was recommended that all newly certificated transport-category airplanes have a system for each emergency exit door to relieve pressure so that they can only be opened on the ground after a safe differential pressure level is attained. (NTSB)
http://www.ntsb.gov/recs/letters/2002/A02_20_23.pdf