As most are unfortunately aware the Boeing 737 Max 8 is receiving very bad press after two fatal plane crashes in five months.
China suspends commercial operations of Boeing 737-8 planes
At the time of writing this, not all the 737 Max’s have been grounded. Indeed until only a couple of hours ago Ethiopian Airlines insisted they would continue to fly the aircraft. They have since revised their position.
What recourse will a passenger who is scheduled to fly commercial on that model of plane have if they refuse to board because of safety concerns? Do airlines handle such issues under airline specific ticket contract or there exists some general global aviation rules cover such well founded fears of catastrophe?
well found·ed adjective (especially of a suspicion or belief) based on good evidence or reasons.
TL;DR
Methinks a well run airline like Ethiopian Airlines and major country like China both deciding to ground the aircraft based on two catastrophic events in a short period of time fits the textbook definition of well founded. Catastrophic plane crashes are not a dime a dozen.
UPDATE
Global civil aviation authorities have banned all flights using the aircraft, everywhere. The issue about the fear not being well founded is dead in the water, kaput.