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there is a device like this on helicopters that attracts chips using a magnet. it can be examined to find wear. and also if it builds up enough it will bridge a contact and light a caution light. much panic usually ensues.
there is a device like this on helicopters that attracts chips using a magnet. it can be examined to find wear. and also if it builds up enough it will bridge a contact and light a caution light. much panic usually ensues.
Not just Hellies It's used on ALL aircraft engines and nearly all gearbox's (Ex EFDC Teccie)