Alaska Airlines flight 2372 made an emergency landing at Spokane International Airport, Washington, on December 15.
The Bombardier Q400 plane was flying from Seattle, Washington, when the crew reported smoke in the cabin and declared an emergency.
The plane landed safely. All 75 passengers and 4 crew members remained unhurt.
The aircraft was taken out of service.
A small plane had to make an emergency landing at Buffalo Niagara International Airport, New York, on December 10.
The Bombardier plane was flying from White Plains, New York, when its landing gear got stuck in the down position, prompting the pilots to declare an emergency.
The plane landed uneventfully. All five passengers and two crew members remained unhurt.
The plane was taken for inspection.