WASHINGTON — A House committee said Monday that the head of security operations at the Transportation Security Administration has been replaced.

“Kelly Hoggan has been removed from his position as head of security at TSA,” the House Committee on Oversight and Government Reform posted on Twitter.

Meanwhile, The Associated Press obtained a memo sent from TSA Administrator Peter Neffenger that does not mention Hoggan but names an acting replacement.

“Darby LaJoye will serve as the Acting Assistant Administrator of the Office of Security Operations,” Neffenger wrote in the memo addressed to TSA senior leaders.

The oversight committee said Hoggan received more than $90,000 in bonuses over a period from late 2013 to late 2014.

About a year later, a report from the Homeland Security Inspector General’s office revealed that agency employees failed to find explosives, weapons and other dangerous items in more than 95 percent of covert tests at multiple U.S. airports.

That report and allegations of other mismanagement within TSA have drawn congressional scrutiny and promoted multiple hearings on Capitol Hill.

Hoggan’s ouster also comes amid growing concerns of massive security lines at airports this summer. The long lines have been blamed in part on more travelers during the busy summer travel season and a shortage of screening officers manning checkpoints.

In recent weeks there have been reports of thousands of people missing flights because of the lengthy wait times.