Bob Hope Airport on Thursday night, Nov. 29, 2012.

Bob Hope Airport on Thursday night, Nov. 29, 2012. (Ross A. Benson / November 30, 2012)

Repair crews at Bob Hope Airport in Burbank on Friday restored runway lights on a runway after a power failure caused several incoming and outbound flights to be canceled.

The north-south runway "edge lights" were switched back on at about 5:30 a.m., an operations manager at the airport told the L.A. Times.

The cause of the Thursday night outage was not immediately known,  she said.

Officials predicted Thursday night that normal flight operations would resume at daybreak whether or not the outage had been repaired.

Although the north-south runway is mainly used for departures, incoming flights were also affected, officials said.  Airlines that use Bob Hope Airport include Southwest, United, Jet Blue and Alaska.

-- Bob Pool, Los Angeles Times