Ended up cutting and patching the deeper bits just left with pits 1-4 thou deep approx running the full length of the fuselage top.Still would like to know if the aluprep does neutralize the al oxide and what other alloys may be in the material of the 1940'S within these pits.[DC 4 was used as a...
The top of the fuslage on our DC4 is coverd in surface corrosion [piting to about 5-15 thou depth].We are using Aluprep and green scotch bright to clean the surface and then alodine.I was trained to physically remove any traces by mechanical means first and then to aluprep/alodine.My question...
We do already have the Structures,Parts and Maintenance manuals for the DC-4 but the info is only generalised when it comes to the corrosion repair of the bathtub fitting.Just wanted to know more about the stresses within/thru the actual bathtub portion of the angle fitting so as to have a...
Anyone got info on the allowed depth of corrosion removal in the actual bathtub basin [Douglas DC 4] where the nuts/bolts sit[this holds the wing tip with the main fuel tank] Cheers
