United Airlines planes in San Francisco clip wings

The right wingtip of a United Airlines plane departing a gate collided with the left wingtip of another United plane in San Francisco early on Tuesday, according to the Federal Aviation Administration.

"While United Airlines Flight 863 was pushing back from the gate at San Francisco International Airport, its right wingtip struck the left wingtip of United Airlines Flight 877," the FAA told Fox News Digital.

"This occurred in an area where air traffic controllers do not communicate with flight crews.