For second time this week, Southwest flight out of Bay Area makes emergency landing

A Southwest Airlines flight out of Oakland made an emergency landing on Wednesday night due to a possible flap issue, according to the Federal Aviation Administration.

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The incident marked the second time this week a flight emergency diverted a Southwest flight from the Bay Area.

Shortly after 7 p.m. on Wednesday, Flight 4474 departed Oakland International Airport for Reno-Tahoe International. The flight ended up landing at Sacramento International Airport at around 8:00 p.m. 

"The Crew reported an illuminated flap warning light during the flight’s initial descent," a Southwest spokesperson told KTVU, adding, "The Crew followed safety procedures and landed without incident."

Aircraft flaps are attached to a plane's wings to help control lift and drag during take-off and landing.   

The FAA said it was investigating the incident.

The emergency landing came a day after a Southwest flight out of San Jose Mineta International experienced an engine problem and was rerouted back to San Jose. 

The Burbank-bound flight received an engine maintenance alert after departure, officials said.

The aircraft was taken out of service for a maintenance assessment, and passengers were rebooked. 

No one was hurt in either incident.