The union for American air traffic controllers has confirmed allegations that two controllers were not on duty immediately before the Air Canada regional jet crash at LaGuardia Airport in March. The crash tragically resulted in the deaths of both pilots onboard. Details emerged suggesting the controllers left their posts early, raising questions about potential staffing levels and safety protocols. The National Transportation Safety Board (NTSB) is currently investigating the circumstances surrounding the incident, including the controller staffing situation. While the union acknowledged the allegations, it has not yet commented on the reasons for the early departure or potential impact on the crash. The investigation aims to determine if the staffing issue contributed to the accident and to prevent similar occurrences in the future. Further details are expected as the NTSB continues its review.