What concerns have been raised about FAA personnel changes under the Trump administration?

Concerns have emerged regarding staff cuts at the FAA as part of President Trump's effort to reduce the federal workforce. Critics like former Transportation Secretary Pete Buttigieg are demanding transparency about how many FAA personnel were fired, what positions they held, and the reasoning behind these decisions. California Democratic Congressman Eric Swalwell has notably linked these changes to aviation safety, claiming there were zero American airline crashes before Trump took office, implying potential safety risks associated with the current administration's approach to FAA staffing.