As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MX PERFORMING INSP IT WAS NOTED THAT THE WEB AT BS 950F-970 RBL 4 IS CORRODED. REMOVED DAMAGED WEB, FABRICATED NEW FROM 7075 T6 .040 INCH DIM 19.875 INCHES X 9.750 INCHES. INSTALLED WEB, NO OTHER DEFECTS WERE NOTED. ACFT WAS RETURNED TO SERVICE.