Sudden Flat Tire

I can't conceive of an operational situation that would cause a steel cord
to come adrift from inside the molded rubber. This wouldn't be an issue with
the tubeless tires on your car, but I'd hate to have it happen in the air
with an aviation tire -- bad news to land on a flat you didn't know about .
.. . . Sounds like a manufacturing defect to me. Someone should have a
heart-to-heart with the tire manufacturer.

Seth


"Kevin Kubiak" wrote in message
...
Strange thing happened to me earlier this week (monday).
I flew from home base at KUGN to KDBQ with a friend
for a quick stop and then we were planning to fly up the Mississippi
to look for some fall colors.

Had a nice clear day with light winds. So we land at DBQ, I taxi over to
the
FBO for a quick pit stop. Got back in the plane, got ATIS, contacted
ground and
given taxi instruction to 36. So I'm # 2 in line, just finish mag check
and
now I'm # 1. Start to move forward and seemed like the pedals were hare
to steer. I quickly think I got a flat nosewheel, and shut down the
engine, worried
that I might strike the prop. Anyway, contact ground told them on problem
and plane behind me says yep it is flat.

FBO sends a truck to fill the tire, but the air rushed out almost as fast
as it
entered. SO we now need a tow back to FBO. 2.5 hrs later I have new
tire and tube and we are off back to KUGN. Luckily I take the old tire &
tube back. Since the plane is owned by the club I'm a member in.

The general manager said I will be reimbursed for the repair, but was
curious about the flat. I was too since the tire looked to be relatively
new.
In fact it was only replaced 2 weeks prior. The problem apparently was
that
some of the steel cord must have popped up through the tires sidewall and
punctured the tub. If you rub your hand over the inside you can feel the
steel
wire protruding through the sidewall.

Does this kind of thing happen frequently. Did I over react by shutting
down the engine, but I was really did not want to add a prop strike
to ruin my day?

Could side load or bad landings, bouncing on the nose cause such a
failure?
My landing just prior to the this occurring was fine, mains first, then
slowly
down on the nose. Just curious. Also, what would happen if the tire went
flat
during flight? I guess I would know the minute the nose settled on the
runway.
If that happened, all I could do is hold the nose off by pulling back on
the yolk.

Kevin Kubiak PP-ASEL