United Airlines flight 396 had to return to Honolulu International Airport, Hawaii after 11 P.M. on July 6.
The plane was heading towards San Francisco, California, when it had to return after sparks were seen coming out of one of the engines.
The plane landed safely and everyone aboard remained unhurt.
The passengers were accommodated in a replacement plane.

American Airlines flight AA-892 had to divert for an emergency landing in Minneapolis, Minnesota, on June 24th.

Allegiant Air flight G4-7001 had to divert and make an emergency landing at Fort Lauderdale – Hollywood International Airport, Fort Lauderdale, Florida, on May 5th.
Turkish Airlines flight TK-183 had to divert and make an emergency landing at Washington Dulles International Airport, Virginia, on February 23rd.