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Date: Sun, 18 Sep 2011 12:32:55 -0400
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From: Brent Regan <brent@regandesigns.com>
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Subject: Re: Left Main strut ear weld (Hydraulic Actuator) failure
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Tony,
It looks like a classic weld failure due to lack of weld penitration 
that was exascerbated by corrosion. If you look closely you may see some 
transverse scalloping of the weld failure interface. Like tree rings, 
this would tell you that the failure happened over multiple actuations 
rather than in a single event. Careful inspection may have caught this 
before complete failure.

The good news is that the fix is easy as the strut arm is not part of 
the actuator chamber so you can re-weld the tab without disassembly of 
the strut. You will need to remove the strut so you can properly prepare 
the area. It would also be a good idea to make a locating fixture for 
the tab so that it can be repositioned properly.

The great news is that you made it back to terra firma without damage.

Brent Regan