service from Fort Worth Meacham to Houston, San Antonio, Austin, and from Colorado Springs to Nashville and San Antonio. This effort proved to be unsuccessful and the service from Fort Worth ended in less than a year. Difficulties and loss of the United codeshare Mesa and United entered into discussions in July 1997 to renew WestAir's codeshare agreement, which was due to expire in May 1998. Mesa and United could not agree on new terms. As negotiations delayed into the summer, United started awarding WestAir's routes to SkyWest Airlines. Finally with negotiations at an impasse, United announced in November 1997 that it would not renew the codeshare with WestAir. Mesa attempted to reengage United and ask United to reconsider to no avail. Mesa experienced many customer complaints regarding its Denver United Express operation. The level of complaints resulted in a Congressional inquiry of the airline's performance. Mesa experienced increased costs the Denver hub as a result of moving from Denver Stapleton airport to the new Denver International Airport and as a result of a decrease in the average fare Mesa received from United. In efforts to reduce its exposure to the high costs and mounting losses, Mesa announced that it would reduce and terminate service from its Denver hub in September 1997. United charged that the reduction and termination of service was a material breach of the codeshare agreement. Naturally Mesa disagreed. Again, as with WestAir, agreement could not be reached and United and Mesa mutually agreed to terminate the codeshare. The effect of the codeshare termination with WestAir and Mesa was immediate. The termination put 87 (21 Jetstreams, 29 Brasilias, and 37 Beech 1900s) of Mesa's 184 aircraft out of service or 47% of its total aircraft. Mesa took immediate steps, parking the Jetstreams and Brasilias. It sold 10 Brasilias to Skywest. Mesa exercised the option to purchase 16 additional CRJs and traded in the remaining Brasilias to Bombardier for CRJs. Mesa sold 24 Beech 1900s to Great Lakes, and returned the remaining Beech 1900s to Beechcraft/Raytheon. WestAir ceased operations in 1998. Mesa experienced difficulties with its other two codeshares as well. Flight crew shortages and scheduling problems resulted in the cancellation of many flights. From October 1997 to January 1998, Mesa parked aircraft and canceled flights to alleviate the crew shortage problem. Part of the crew shortage problem was related to the consolidation of flight operations in Farmington,