"Major" is sufficient to remove an aircraft from service.
Globally:
According to ACRO, recent years have been considerably safer for aviation, with fewer than 170 incidents every year between 2009 and 2017, compared to as many as 226 as recently as 1998. {1}
Tires falling off of a passenger plane isn't "major", nor is it common - it's a rare occcurence, one that should never happen, and something that has the potential to cost lives.
Why are reports being submitted now?
It's only recently become common knowledge that various aircraft companies that were once the pinnacle of safety practices (eg: Boeing) are now relatively rotten to the core and troubled with cost cutting practices and a lack of safety culture.
Globally:
Tires falling off of a passenger plane isn't "major", nor is it common - it's a rare occcurence, one that should never happen, and something that has the potential to cost lives.Why are reports being submitted now?
It's only recently become common knowledge that various aircraft companies that were once the pinnacle of safety practices (eg: Boeing) are now relatively rotten to the core and troubled with cost cutting practices and a lack of safety culture.
{1} https://en.wikipedia.org/wiki/Aviation_accidents_and_inciden...
{2} https://asrs.arc.nasa.gov/