There’s one question on many people’s minds after numerous high-profile aviation incidents in the last few months: Is it safe to fly? Two aviation experts say there’s still nothing to worry about. Here’s why.

“Following safety procedures, the flight crew of DL3067 returned to Charlotte after reporting a mechanical issue while en route to Atlanta,” a Delta spokesperson said. The airline apologized to customers for the delays to their travel plans. The flight had 71 customers, two pilots and three flight attendants.

Airlines for America calls on the Federal Aviation Administration to permanently suspend some helicopter routes near the airport with limited exceptions for essential military or medical emergencies.

U.S. Transportation Secretary Sean Duffy said on Thursday the Trump administration will take steps to boost air traffic controller hiring after a series of recent safety incidents again raised questions about a persistent staffing shortage.