A CSX rail inspection that took place the day before a train derailment in downtown Lynchburg apparently discovered a defect in the tracks. Media outlets report, official told a state rail safety task force about the defect Wednesday– but could not elaborate on its nature or say whether it contributed to the April 30 accident. The State Corporation Commission’s utility and rail safety director, said railroads have 30 days to analyze and act on defects they discover. CSX deferred comment to the National Transportation Safety Board, which said it is still collecting information. Nobody was injured in the 17-car derailment. Three cars carrying Bakken crude plunged into the James River and one caught fire, prompting a brief evacuation of parts of downtown.