Thanks to Congressional budget cuts, one Marine aviation squadron sank to a new low.

According to a testimony presented to the House Armed Services Committee, Marines stationed at southern U.S. military bases have been so hard up for money and supplies, they’ve been forced to scavenge aircraft parts from decommissioned aircraft—including those on display in museums.

The story was told by Rep. Mac Thornberry, who had recently visited several bases and spoken directly to Marines. He did not identify which base had to hit up their local military museum for plane parts

“I have heard firsthand from service members who have looked me in the eye and told of trying to cannibalize parts from a museum aircraft … getting aircraft that were sent to the boneyard in Arizona back and ready to fly missions, pilots flying well below the minimum number of hours required for minimal proficiency,” Thornberry said.

As many as 40 percent of Marine aircraft are not flyable due to maintenance issues. The Military Times reports that although the Marine Corps has requested more money in order to make its planes ‘fight ready,’ but until the 2017 fiscal budget is approved, they have to get creative.

The Marine Corps has requested $460 million from Congress in fiscal 2017, some of which would buy spare parts for aircraft, but aviation readiness is not expected to fully recover until at least 2020.

Thornberry said the museum salvage attempt he learned about didn’t work, and the Marines were forced to find another fix to get the aircraft ready for an overseas mission.

“The part they took off the museum aircraft did not fit the aircraft they were trying to keep flying,” he said. “But they’re looking for whatever they can do to keep these things up in the air. It’s just amazing.”

In addition to aircraft parts, Marines are also buying their own basic supplies such as pens and toilet paper.