At long last I am able to announce a service bulletin to significantly improve the reliability of the oil and manifold pressure sensors. This is the last of the "Top 5" reliability items I have been discussing for the last couple of years. I
last blogged about this specific topic back in April, and what we discovered during those experiments led directly to the final solution we put into the field. The reason for the long delay is that there was a significant lead time on some of the parts that get installed and/or replaced in the service bulletin and we had to wait until we had sufficient stock.
SB2X-77-04 spells out the replacement of the oil and manifold pressure sensors, the additon of the strain relief parts, and the removal of the baffle connector.
It is important that the pressure sensors get replaced at the time of the service bulletin as the connection has likely already been damaged to some extent, and our testing has showed that not replacing it reduces the effectiveness of the repair.
I am excited to finally being able to offer this solution to the field, and being able to close out the last of the Top 5 issues.