As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD "ECU" MOUNT WAS LOOSE WITH BLIND FASTNERS MISSING. REMOVED THE FWD MOUNT AND FOUND A 40MM LONG CRACK UNDER THE MOUNT ON THE TAIL CONE DOUBLER, PN 117-22130, JUST FWD OF FRAME/STA 6135. THIS IS A COMMON DISCREPANCY ON THIS ACFT WITH A "ECS" INSTALLED. CONTACTED MFG FOR A REPAIR AND RECEIVED AN RDAS-AE13-0323 AND APPROVED 8110. THIS REPAIR CONSISTS OF INSTALLING A STAINLESS STEEL 0.040" DOUBLER IN THIS AREA WITH 2024 T3 ALUMINUM SHIM WITH SOLID AND BLIND FASTNERS.