Apple will need a whole lot more information.
Did the iPad overheat?
Did he tap it with a sharp implement like a pen?
Did he have it mounted in a location with a lot of vibration cause harmonics?
Charging with an aftermarket charger?
iPads are universally approved by the FAA for use as EFB's in passenger carrying aircraft.
I seriously doubt they would have done that if they're going to violently explode when there's a decompression.
I'm having doubts about this story.