Workers who clean airplanes, remove trash and help with wheelchairs at Charlotte’s airport went on strike Monday during a busy week of Thanksgiving travel to demand higher wages.The Service Employees International Union announced the strike in a statement early Monday, saying the workers would demand “an end to poverty wages and respect on the job during the holiday travel season.” Union spokesperson Shwetha Ganesh said in a statement Friday that the strike would last 24 hours. Representatives didn’t immediately answer questions Monday about whether the timeframe had changed.Employees of ABM and Prospect Airport Services cast ballots Friday to authorize the work stoppage at Charlotte Douglas International Airport, the ninth busiest in the U.S. The two companies contract with American Airlines to provide services including cleaning airplane interiors, removing trash and escorting passengers in wheelchairs.Click the video player above to watch the latest headlines from WXII 12 News.Workers say they previously …