Just say no to crack.

[Let'sgoflying!]

There are worse times to find this. Should I be deleriously happy or sad or mad; I can't decide.

 

[KennyFlys]

Can you say... "fatigue"? That could lead to deadly consequences.

 

[Let'sgoflying!]

Those are Dawley welds from about 2 years/350 hrs ago.
Not to say D. did anything wrong at all. Just that its not local welding shop work. This portion is suspended by the can at the upper end and a spring at the lower end, so no - overtorquing could not be responsible. Age, heat, vibration are my guesses.

 

[KennyFlys]

Vibration and heat are pretty common causes of fatigue. In doing corrosion control work on the S-3, I saw fatigue cracks in parts of the airframe I would have never suspected to happen. But then, repeatedly getting slammed onto a carrier deck can cause a bit of stress on an airframe!

 

[tonycondon]

saw cracks just like that at the exit point from cylinder on the supercub this summer.

 

[wsuffa]

I was afraid it might be a picture of a plumber or appliance repairman....