Southwest Airlines flight WN-1511 had to return and make a precautionary landing at Oakland International Airport, Oakland, California, on July 2nd.
The Boeing 737-300 had taken off for Austin, Texas, when the crew decided to return after reporting an engine problem.
The plane landed safely. All people onboard remained unharmed.
The passengers were accommodated in a replacement plane.

American Airlines flight AA-2047 had to return and make an emergency landing in Tucson, Arizona, on June 24th.
Air France flight AF-267 was intercepted by fighter jets on the way to Charles de Gaulle Airport, France, on July 23rd.
VietJet flight PK-368 had to return and make an emergency landing in Karachi, Pakistan, on September 5th.
Avianca Brazil flight O6-6376 had to return and make an emergency landing in Juazeiro do Norte, Brazil, on May 15th.
EgyptAir flights 631, 650, 664, 834, 921, 959, 969 had to divert and make emergency landing at Sharm El-Sheikh and El-Ghardaga Airports, Sinai Peninsula, Egypt, on April 3rd.