Norwegian Air Shuttle flight D8-1823 had to return and make an emergency landing in Dublin, Ireland, on August 23rd.
The Boeing 737-800 plane was heading to Providence, Rhode Island, when the crew noticed an APU problem and decided to turn back.
The plane landed uneventfully. All passengers and crew members remained safe.

Austrian Airlines flight OS-509 made an emergency landing at Milan Malpensa Airport, Italy, on February 25th.
Mesa Airlines flight YV-5631/ AA-5631 had to abort takeoff at Dallas-Fort Worth International Airport, Dallas, Texas, on April 20th.
