ABC News January 13, 2019

On latest day of government shutdown, TSA absences more than double last year's rate

WATCH: No payday for federal employees due to government shutdown

Amid a government shutdown and major winter storms hitting large swaths of the U.S., the number of TSA officers who didn’t come to work on Sunday more than doubled compared to that number a year ago.

On Sunday, TSA spokesperson Michael Bilello said 7.7 percent of the agency’s employees had an unscheduled absence today, compared with 5.6 percent on Saturday and 3.2 percent a year ago.

A stalemate between President Donald Trump and congressional Democrats over funding for Trump’s campaign promise of a wall along the U.S.-Mexico border has created the longest federal government shutdown in history, and forced over 800,000 government employees to go without paychecks.

Natalie Behring/Getty Images
TSA employee Marae Persson (L) holds a sign protesting the government shutdown at the James V. Hansen Federal Building, Jan. 10, 2019 in Ogden, Utah.
(MORE: How does the shutdown impact me? Answers to your frequently asked questions.)

According to Bilello, 99.9 percent of airline passengers across the U.S. waited less than 30 minutes at their checkpoints.

Official wait time data for Sunday wasn't immediately available.

More than 51,000 airport security screeners are required to work through the government shutdown --despite the agency's inability to provide them their regular pay -- until it secures congressional funding from lawmakers in Washington.

In addition to missing a regular payday, thousands of TSA employees are dealing with winter weather stretching from the Midwest to the East Coast.

Alex Wong/Getty Images
President Donald Trump hosts a round-table discussion on border security and safe communities with State, local, and community leaders in the Cabinet Room of the White House, Jan. 11, 2019.

Parts of Missouri, Iowa and Illinois received more than a foot of snow by Sunday morning. With at least 10 inches of snow in St. Louis so far, this is the biggest snow storm the city has seen in 5 years.

Five inches of snow in New Jersey and ice-covered roads as far south as North Carolina made for dangerous driving conditions in other parts of the country.

(MORE: Air traffic controllers, whose ranks are already at a 30-year low, are feeling the strain of the government shutdown)

In an apparent effort to raise the spirits of those tasked with keep the country's airports safe, TSA Administrator David Pekoske announced on Friday that his uniformed screening officers would soon receive a one-time bonus of $500 "in recognition of their hard work during yet another busy holiday travel season, maintaining the highest of security standards during an extraordinary period."

That extraordinary period has seen an increasing number of airport screeners calling out of work, even before the government shutdown postponed paychecks for the first time on Friday, sparking fears of long lines and staffing shortages as the shutdown continues.

Elaine Thompson/AP
Transportation Security Administration (TSA) officers assist travelers with luggage through a security screening area during a partial federal government shutdown, Dec. 31, 2018, in SeaTac, Wash. TSA staff are among tens of thousands of federal employees considered essential as the federal government shutdown moves into its second week. They are working without pay until the shutdown ends.

The National Air Traffic Controllers Association is currently suing the Trump administration on behalf of the thousands of controllers that have not been paid during the record-breaking shutdown.

The suit, filed in federal court in Washington, D.C., claims the administration has violated the Fifth Amendment by depriving workers of wages without due process and violated fair labor regulations by not at least paying minimum wage to air traffic controllers and others who are required to work during the government shutdown. The suit also claims the FAA didn't promptly pay overtime to union members, an oversight the union said is also in violation of regulations.

While the shutdown drags on, maintenance, inspection, training and modernization programs have also been deferred.

"While we are doing the day-to-day tasks there's a lot of things that are falling through the cracks," Portland International Airport tower controller Richard Kennington told ABC News. "There's a lot of insidious stuff that the flying public doesn't see that's not happening."