Allegiant Air flight 8503 had to make an emergency landing at Chicago Rockford International Airport in Rockford, Illinois, on April 8.
The plane took off from South Bend, Indiana and was heading to Wendover, Utah when the pilot reported an oil filter malfunction. FAA spokesperson Tony Molinaro confirmed that the plane made an uneventful emergency landing as a precaution.
The plane was a charter for the Resorts at Wendover and was carrying around 115 people at the time.
The passengers were accommodated in local hotels and were transported back to South Bend next day.


American Airlines flight AA-952 made a safe landing after bird strike in Newark, New Jersey, on September 24th.
Scoot flight TR-6 had to return and make an emergency landing in Singapore, on January 29th.
Cathay Dragon flight KA-168 had to return and make an emergency landing at Hong Kong International Airport, Hong Kong, China, on May 7th.
Wizz Air flight W6-2927 had to divert and make an emergency landing in Budapest, Hungary, on November 7th.