Originally Posted by
Eddy_G
.... Wipe it clean and give it a good visual on-the-bike inspection. I use a bright flashlight as well.
If the crankset is at all in question, then it will move forward to the Safety Notice Complete Inspection. This is much more detailed and involves removal, disassembly, and thorough cleaning before further visual inspection.
This type of visual inspection will likely only catch the obvious cases. What really needs to happen is to clamp the steel axle in a vice, tighten a threaded rod into the pedal hole, and then flexing the heck out of the crank while looking for splits and openings.