Strange chip light story -
OH-58 would have a transmission chip light flicker on start, and then go away.
Machine shut down and chip checked - clearn. Happened three times. Mechanic checking finally decided that because there was a larger than normal drop of oil that came out when detector was pulled each time, that the chip detector itself should be changed.
Half an hour later presented me with chip detector with staple on the element - no one could figure out how staple got into the system, but it was sticking up and would tip against the housing as oil started to flow and then somehow come away. It was sticking up enough that it caused the small leak with the detector was removed.