Power is back at Lihue Airport on Kauai after a generator failure left travelers stuck in security lines for hours, a bad day for anyone flying out of the island.

• One of the airport's two backup generators blew out in the morning, leaving a single generator to carry the whole terminal.
• Security screening dropped from three lanes to one, and waits stretched to six hours.
• The remaining generator kept cutting out, forcing TSA to restart the screening equipment again and again.
• Some travelers gave up and rebooked after moving barely 100 feet in four hours; staff handed out water and snacks to people in line.
• The airport has been running on generators since Hurricane Lowell knocked out power to the island.

Outlook: Crews are resetting the system and state transportation officials expect normal operations back for Friday travel, with only a couple of Delta flights canceled and other airlines running on delayed schedules.