A passenger’s electronics battery ignited in the back pocket of an aircraft seat in the air. The fire did not spread. The crew of the Newark-bound United airlines flight contained the fire by putting the battery into a containment bag. The plane then returned safely to San Diego airport. Six people received precautionary medical treatment. The incident illustrates how fire safety requirements for seat textiles and aircraft interior materials can prevent fire spread. The US FAA (Federal Aviation Authority) indicates nearly sixty incidents per year involving lithium-ion battery fires or overheating in airplanes.
ABC News, 7 February 2023 https://abcnews.go.com/US/4-injured-after-battery-caught-fire-united-flight/story?id=96953705
DailyHive 10 February 2023 https://dailyhive.com/canada/united-airlines-battery-pack-fire