The Federal Aviation Administration says a Southwest Airlines Boeing 737 Max jet made a safe emergency landing Tuesday in Orlando, Florida, after experiencing an apparent engine problem.

(In this Saturday, March 23, 2019, photo, a Southwest Airlines Boeing 737 Max aircraft lands at the Southern California Logistics Airport in the high desert town of Victorville, Calif. Southwest, which has 34 Max aircraft, is making cancellations five days in advance, with an average of 130 daily cancellations. AP Photo/Matt Hartman)

The crew declared an emergency after taking off from Orlando International Airport around 2:50 p.m., and landed the plane safely. No passengers were on board. The aircraft was being ferried to Victorville, California, where Southwest is storing the airplanes.

The 737 Max was grounded in the U.S. March 13 after a deadly crash involving a Max on March 10. It was the second fatal crash involving the airplane. U.S. Airlines are allowed to shuttle the planes but cannot carry passengers.

Canadian Airlines have also grounded all 737 Max 8 and 9 jets. 18 Canadians were killed in the crash of an Ethiopian Airlines jet on March 10th.

The FAA says it’s investigating but it appears the emergency was not related to anti-stall software suspected in the two fatal crashes.

(The Associated Press)