As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE A CRACK WAS DISCOVERED ON THE RIGHT NACELLE INBOARD CROSSOVER BEAM SUPPORT CHANNEL P/N: 5654102-15. AFTER REMOVING THIS CHANNEL IT WAS DISCOVERED THAT THE RIGHT HAND INBOARD BEAM, P/N: 5654109-7 WAS CRACKED UNDERNEATH THE SUPPORT CHANNEL. THIS CRACK MEASURES APPROXIMATELY .890 INCHES LONG AND COULD NOT BE SEEN UNTIL THE -15 CROSSOVER BEAM SUPPORT WAS REMOVED. THIS BEAM WILL BE REMOVED AND REPLACED USING NEW PARTS.