Some 150 passengers waiting to take off from New York's JFK Airport got quite the scare Tuesday when a pilot accidentally triggered a hijacking alarm. "Woah. My worst nightmare," passenger Alexa Curtis tweeted alongside photos of authorities surrounding and searching JetBlue Flight 1623 ahead of departure to Los Angeles. "Honestly thought we were going to die." Though passengers were apparently kept in the dark, the Airbus 321 had "experienced a radio equipment problem" while taxiing, according to the FAA. A pilot then entered an incorrect code, which triggered a hijack alert, per CNN. No security threat was detected and the flight departed four hours late, per the New York Post. (More JFK Airport stories.)