Hi, just a quick info on a lesson i have learned today, maybe it can save someone some trouble...On our s1 the oil pressure rose to about 120 psi, then she began to burn oil, oilpressure rose some more, then everything returned to normal on the flight to the field. It turned out the oil breather line was frozen and the pressure in the crankcase got very high. It would have increased a lot more if the old connecting tube hadnot blown. There is aservice bulletin on that topic, issued long ago, most of you certainly know about it, but those who don't can find it on the aviat website.Happy landings to all of you!Christian
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Breather line clogged, icing
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robertsailor
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robertsailor
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