41. Its headquarters and main operation  center is Grand Canyon National Park Airport and Boulder City Airport, Nevada. 42. A fourth operator observing the plots would then call in the position to the main operations  room. 43. Koppers was taken over by Beazer PLC, a British construction concern, whose main operations  are in Europe. 44. The main operations  are based in �g�rdets IP at the Fj�r�s Fritidscentrum ( Fj�r�s Leisure Centre ). 45. This was the main operations  room and control centre for all RAAF Missions in the Pacific area. 46. However, Bank of the West's main operations  center will remain in Walnut Creek with close to 600 employees. 47. The temporary outage at Continental's main operations  center in Houston scrambled computers handling the flow of air traffic. 48. WESH brought NBC to Orlando when it moved its main operations  from Daytona Beach to Eatonville in 1991. 49. "Operating income was off at two of Pepsi's three main operations , a very unusual thing for this company. 50. The bank has an operational branch in the lobby and has its main operations  on the tenth floor.