Northwest may no be flying as straight as the company reported. That is what Minneapolis' Star Tribune and the union representing the companies striking mechanics allege after reviewing records released by federal aviation inspectors. The reports suggest that during the first month of the strike there were training deficincies, thin staffing, maintenance shortcomings and mistakes in recording aircraft repairs. Northwest said that many of the issues in the FAA report have been addressed and some replacement workers have been retrained. The strike began on August 20 when 4200 mechanics walked off the joband the airline brought in 1,200 replacement workers. The last round of talks, held on September 11, collapsed and NWA has since filed for bankruptcy protection.