Plane Headed to Milwaukee Forced to Land in Denver A Southwest statement referred to 'a pressurization issue' By Newser Editors and Wire Services Posted Apr 25, 2015 12:32 PM CDT 11 comments Comments File photo of a Southwest jet. (AP Photo/Springfield News-Leader, Valerie Mosley, File) (Newser) – A Southwest Airlines flight traveling from Las Vegas to Milwaukee was diverted to Denver last night after reporting a pressurization problem. Flight 100, which departed Las Vegas at 9pm Eastern, diverted to Denver after about 90 minutes. A spokesperson for the airport there tells the Denver Post that fire department crew members evaluated the passengers, but just one person was transported and that was for a slip-and-fall injury. Denver's KMGH-TV reports that a Southwest statement referred to "a pressurization issue," but did not elaborate. The statement says that 175 passengers and six crew members were aboard the Boeing 737-800, which will be taken out of service and inspected. Passengers continued on to Milwaukee on another aircraft. Earlier this week, three passengers aboard a SkyWest plane lost consciousness, but the airline says initial reports blaming a pressurization problem—the FAA says the crew itself reported the issue, notes USA Today—were incorrect. The official cause remains unclear.