- Joined
- Oct 24, 2018
- Messages
- 31
- Reaction score
- 5
I have a PA34-220T. (Seneca III) and one of the hot prop brushes was worn out and was replaced 10 months ago. After a new brush was installed it started making some sort of goop around the brush and then throwing it onto the front cowling. It was cleaned and checked 3 times and all looked good including the adjustment. My tech then replace the bottom brush. Same thing happened. We then replaced both again and adjusted. Same issue. Last week they called Maxwell and sent pictures and they replied they have not seen this before. They have been in contact with our local rebuilding engine shop (Bolduc Aviation) and they have not seen or heard of that also. After months of going through this i believe it is happening while going through rain. the other engine does not have any issues. It has been cleaned and adjusted many times and the new brushes, with now about 150 hours on it still look new. See pictures below.
