how often to plane tires "expectedly" explode?

it's a possibility, especially if a wheel locks on landing. However, there are usually fusible wheel plugs installed that will melt at certain temperatures so that the tire will deflate before it explodes. We'll have to wait and see what happened in this case.

So there in no chance of over heating.

Were they airing it up and over pressurized it?

I drove semis for years and once had a tire blow up 50 yards from a New Mexico check point for no reason at all.

Maybe the plane had been sitting in the hot sun for hours, and there was a flaw in the tire and it blew up before the fuse plug could melt and deflate it? I expect we'll find out before long. Sad story, for sure.

There isn't some "aircraft tires are us" kind of business. Tires for jets like this are made to specifications generated by the aircraft manufacturer. The subcontractor is managed by Boeing and the manufacturing processes are approved and controlled by Boeing.

Many of Boeing's problems over the last decade or more have been because they "outsource" so much to subcontractors, and ultimately the engineering itself. It has demonstrably caused them problems for years. I obviously cannot say that in this case anything like this was responsible. Quite honestly my first guess would be tire damage from something on a runway somewhere. But until we know, saying that it is somehow obvious that Boeing is not responsible is premature.

I'd say two things:

1) Aircraft manufacturers often pick parts suppliers have. The parts supplier may, or not, develop specialized products for a particular application. The tires may be custom, or they may not be. AFAIK, Boeing never made tires in-house, so I don't think the subcontractor angle is relevant.

2) I have seen no evidence that tore blow-outs are a particular problem on Boeing aircraft. Tires are wear items, and require frequnet replacment. And as a number of folks have noted, replacing high-pressure tires can be quite hazardous, and there are safety processes required.

Before we get on the HATE BOEING train, let's see what the investigation reveals.

Let's start with I agree that it is too soon to get on any "hate Boeing" train (or better yet plane
But it is also true that it is too soon to get on the "Boeing is blameless" plane or train as well.

Having worked in the aerospace primary contracting industry for 40 years, I know a little bit about subcontracting work. Yes, we frequently subcontract to manufacturers who already make the type of item for which we want. None the less, VERY specific specifications, including required testing (both qualification and quality control testing) is dictated by the prime contractor. Once an assembly line is certified, it is then under the control of the primary contractor. Boeing is responsible for what their subcontractors are doing.

Having said that, I can't tell you the number of times on production programs where troubles popped up and it was traced back to a subcontractor changing something without notification (which is always required). If that happened here, I'd only hold Boeing responsible to a slight degree.

But as I said I suspect, on nothing more than experience, that it will be decided that the tire in question was damaged during normal use, probably by some debris on a runway somewhere. The most likely outcome is that either maintenance procedures weren't followed, or they need to be changed. It is unfortunate but true that these procedures are as often figured out through tragedy as they are through a thoughtful process up front.

The tires are built to FAA TSO (Technical Standard Order) by the holder of a TSOA (Authorization). I believe it’s FAA TSO-c62.

back at you

I'm organized like that, lol.

And God only knows how badly the third worker was hurt.

What a tragedy.