The auto pressurization light came on during three recent flights involving the same plane, the National Transportation Safety Board said. Some plane components are being sent to an NTSB lab.

The suspect was arrested at the Boston Logan International Airport after allegedly tampering with a side door and the emergency slide, and later allegedly lunged at a flight attendant.

The outage at Terminal 1 was caused by an electrical panel failure, the airport said. Flights, including international ones, are being affected.

Hawaiian Airlines' chief operating officer said the airline had not experienced "an incident of this nature in recent history," calling it an isolated and unusual event.