Here’s Why Your JetBlue Flight May Be Delayed Today by Reuters @FortuneMagazine January 14, 2016, 2:12 PM EST E-mail Tweet Facebook Linkedin Share icons JetBlue Airways jblu warned of delays or cancellations Thursday after a power outage took down its main website and affected customers checking in for flights. A maintenance operation disrupted power at a data center run by JetBlue’s business partner Verizon Communications vz , the airline said in a statement, adding that this was not a “cyber security issue.” “Power has been restored to Verizon’s data center and we are working to fully restore our systems as soon as possible,” the New York-based airline said. “Flights are still departing at this time but customers traveling may experience delays or cancellations.” JetBlue had 36 flight delays and four cancellations as of 1:45 p.m. ET, according to flight tracking website FlightAware.com. The technical issue follows several high-profile computer problems that U.S. airlines faced in 2015, from a router error at United Continental ual to a malfunctioning iPad application used by pilots at American Airlines aal . Industry consultants say the impact of computer disruptions will keep growing as airlines automate an increasing chunk of operations, outfit their planes with Wi-Fi and distribute boarding passes on smartphones.