Travelers at Lihue Airport on Kauai faced security lines lasting hours after backup power kept failing, a bad day for anyone flying off the island.

• The airport has been running on backup generators, and it is now down to just one.

• That single generator keeps cutting out under the load, forcing TSA to restart its screening machines each time.

• Passengers reported waits of up to seven hours, with some people fainting from the heat and exhaustion.

• Scanners went down about every 15 minutes and took 10 to 15 minutes to come back, so lines barely moved.

• Airlines are spreading out flight times to give people more time to clear security, and no cancellations are expected.

Outlook: Crews from the local utility have been pulled off other jobs to restore full power, but delays are expected to continue until that happens.