The FAA blamed the incident on a telecommunications company and outdated infrastructure, stating that the issue took down critical systems. The Federal Aviation Administration is blaming Friday’s travel nightmare, which disrupted hundreds of flights, on two cut fiber optic cables. Related articleOutdated InfrastructureWhat they're saying:In a statement released over the weekend, the FAA blamed the telecommunications company and an outdated infrastructure. "The disruption was caused by multiple failures of the TDM data telecommunications service provided by Frontier, a local telecommunications company. "This is a clear example of the FAA’s outdated infrastructure and underscores the urgent need to modernize our air traffic control systems."