filings of metal in oil - how come?
Evening all, the oil differential pressure indicator at our CJ1+ popped out; mechanic exchanged the oil filter and took an oil sample. Analysis showed filings of metal in the oil (btw, small pieces of metal could also be seen with the bare eye at the magneto before the oil filter). Now, the gearbox and oil cooler have to be exchanged. As the engines are relatively new (580 hours, 557 cycles), I was wondering about the cause of that. For usual wear and tear, it seems to be too soon. Any ideas?
Thanks for your input,
Cecco