As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PN 6760141-5 FRAME IS PART OF THE AILERON POWER CONTROL UNIT SUPPORT ASSY AND IS APPLICABLE TO ACFT 750-0001 TO 750-0149 THAT HAVE NOT BEEN MODIFIED BY SB750-27-44. DURING SCHEDULED INSP, THE FRAME WAS FOUND TO BE FATIGUE CRACKED. THE PART WAS REPLACED. MFG ENGINEERING IS INVOLVED WITH THE ISSUE AND THE INVESTIGATION AS TO CAUSE IS ON-GOING.