Alex Liang COMSTAC member Dr. Alexander C. Liang, died of a heart attack after playing tennis on Saturday, May 2, 2009. Dr. Liang was general manager of the Vehicle Systems Division for The Aerospace Corporation in El Segundo, California, where he worked since 1970. He was appointed as a member of COMSTAC in 1996; in 2002 he was selected to be the Chairman of COMSTAC's Technology and Innovation Working Group. The COMSTAC members and FAA wish to extend sympathy to the family of Dr. Liang and to express the deepest appreciation of his outstanding work and service as a member of COMSTAC.