The acting director of the Transportation Security Administration has been reassigned after an internal investigation revealed security failures at dozens of the nation?s busiest airports, where undercover investigators were able to smuggle mock explosives or banned weapons through checkpoints in 95 percent of trials.

Homeland Security Secretary Jeh Johnson said in a statement Monday that Melvin Carraway would be moved to the Office of State and Local Law Enforcement at DHS headquarters ?effective immediately.?

Melvin Carraway, an 11-year veteran of the TSA who became acting administrator in January, was immediately reassigned to a DHS program coordinating with local law enforcement agencies, DHS Secretary Jeh Johnson said Monday night. Coast Guard Vice Adm. Pete Neffenger’s nomination to be permanent administrator is awaiting Senate confirmation.

“I thank Melvin Carraway for his eleven years of service to TSA and his 36 years of public service,” Johnson said in the statement, adding that Acting Deputy Director Mark Hatfield will lead the TSA in the interim.

Upon learning the initial findings of the Office of Inspector General’s report, Johnson immediately directed TSA to implement a series of other actions, several of which are now in place, agency officials said.

In one case, an alarm sounded, but even during a pat-down, the screening officer failed to detect a fake plastic explosive taped to an undercover agent’s back. In all, so-called “Red Teams” of Homeland Security agents posing as passengers were able get weapons past TSA agents in 67 out of 70 tests – a 95 percent failure rate, according to agency officials.

“The numbers in these reports never look good out of context, but they are a critical element in the continual evolution of our aviation security,” Homeland Security officials said in a statement.