On a x-country flight the other day I believe I began experiencing a failure of my oil temperature sensor. The oil temp indicated on my EFIS began rapidly fluctuating within a range of about 6 to 8 degrees Fahrenheit. I noticed it when the fluctuations started peaking up over 220 degrees nudging into the yellow arc. I powered back, and the mean indicated oil temp gradually decreased into the low 200's, but the rapid fluctuations continued (bouncing around continuously, sometimes jumping by more than 6 degrees almost instantaneously).
All other readings were normal, all CHTs and EGTs showed normal, and there was no change in power or engine noise.
Question - does this sound like a typical mode of failure for the oil temp sensor? Is it unusual for these to fail after only 200 hours??
All other readings were normal, all CHTs and EGTs showed normal, and there was no change in power or engine noise.
Question - does this sound like a typical mode of failure for the oil temp sensor? Is it unusual for these to fail after only 200 hours??