This past weekend I was back out with Innerspace; searching for unfound wrecks in Lake Washington.  We were on the water running side scan for pretty close to 8 hours straight on Sunday; looking hard for two bi-plane seaplanes that crashed in the 1920’s south of the 520 bridge.  We found a couple targets in the right area but on close review they don’t appear to be airplane parts.  We’re planning to go back and make a quick dive on one of the targets just to be sure it isn’t a wing.  During the day we did manage to pick up good scans of a few known boat and shipwrecks in the area: SL Dowell, YMS-359, The Bremerton and a burned out hull – but never came across the plane(s) we were looking for.