*Case 1.A [#q0bb9704]
*Case 4.B [#q0bb9704]
**The causes of fatigue [#rdb518cd]
>
Welding defects were included at the time of fabrication. 
The structure behaved in a manner not expected such as due to vibration. 
**Approaches to repairing and retrofitting [#x70776aa]
>
Removal of crack.
re-weld.

>
**LINK [#r3edceec]

-[[Section L-2C]]
>
Grind out and Hole saw

-[[Gulf Outlet Br.]]
>
Crack removal
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