As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR COND COMPT: #1 ACM RAM AIR INLET DUCT IN FWD AVIONICS COMPT. DUCT FLEXIBLE BOOT AFT FLANGE (UNDER DUCT) HAS WORN INTO FUSELAGE FRAME APPROX STA 392. REPAIRED PER EA # 1-5310-T0359001 FUSELAGE - MAINFRAME - FUSELAGE - FRAME AT STA. 469.173 BETWEEN X=30 AND X=40 - CRACK REPAIR.