Former Spirit Airlines employees have filed a proposed class-action lawsuit against the carrier, alleging the company failed to provide legally required notice before abruptly shutting down operations and terminating its workforce. The lawsuit, filed in U.S. Bankruptcy Court for the Southern District of New York, follows Spirit’s sudden collapse on May 2 . The closure left approximately 17,000 employees without work . Six former employees from Florida are leading the legal action, claiming the airline violated the federal Worker Adjustment and Retraining Notification Act. Under the federal WARN Act, employers are generally required to provide at least 60 days of written notice before a mass layoff or plant closing. According to the court filing, employees were not afforded this window. Instead, they were informed of the shutdown via a company-wide email from CEO David Davis, which stated the airline had “decided to cease operations immediately,” as reported by NBC News .…