What was found
DURING MAINTENANCE A CRACK WAS DISCOVERED ON THE INBOARD FACE OF THE RIGHT HAND INBOARD ENGINE BEAM IN THE AREA OF THE VERTICAL ATTACH CHANNELS FOR THE CROSSOVER BEAM. THIS CRACK WAS DISCOVERED AFTER CHANGING THE CROSSOVER BEAM VERTICAL ATTACH BRACKET P/N: 5654107-15 AND THE ASSOCIATED 5654107-10 UPRIGHT. THEREFORE, NOT VISIBLE UNTIL THE BRACKET WAS REMOVED. THE CRACK MEASURES APPROXIMATELY .780 INCHES LONG, AND IS CONSISTENT WITH OTHERS FOUND IN THIS AREA USING A DETAILED VISUAL INSPECTION. THIS BEAM HAS BEEN REPLACED USING NEW PARTS.