Unison revised the BRUSH Service Bulletin yesterday and released SB3-08A today.
They have a replacement brush that eliminates the 25 and 50 hour inspections.
Here is a QUOTE:
Service Bulletin ending compliance can be documented if existing magneto is
replaced by new magneto with serial number 08080454 or later, or if the carbon brush and/or distributor block has been replaced by one manufactured after August 14, 2008, or if the magneto has accumulated 500 hours of engine operating time and has passed the Service Bulletin inspection requirements. Make an appropriate logbook entry.
If you find someone that has the new brush in stock, please report back with their name, URL, phone number, and price.
They have a replacement brush that eliminates the 25 and 50 hour inspections.
Here is a QUOTE:
Service Bulletin ending compliance can be documented if existing magneto is
replaced by new magneto with serial number 08080454 or later, or if the carbon brush and/or distributor block has been replaced by one manufactured after August 14, 2008, or if the magneto has accumulated 500 hours of engine operating time and has passed the Service Bulletin inspection requirements. Make an appropriate logbook entry.
If you find someone that has the new brush in stock, please report back with their name, URL, phone number, and price.