What was found
UNAUTHORIZED THREAD SEALANT WAS FOUND ON THE FUEL SIDE OF THE INLET FITTINGS. SB-10 ADDRESSES THIS ISSUE. THREAD SEALANT INSIDE THE CARBURETOR`S FUEL AND AIR PASSAGES CAN BREAK FREE AND CAUSE A CARBURETOR TO MALFUNCTION LEADING TO PARTIAL OR COMPLETE LOSS OF ENGINE POSER. SUBMITTER RECOMMENDS FOLLOWING THE INSTRUCTIONS CONTAINED IN THE APPROPRIATE CARBURETOR O/H MANUAL AND OTHER APPLICABLE SERVICE INFORMATION WHEN SERVICING CARBURETORS. THE CARBURETOR WAS IDENTIFIED WITH A RED "AVSTAR" DATA TAG.