What was found
C-CHECK NON-ROUTINE ENG NR 4 RT AT 12 O'CLOCK FWD CORE COWL CLOSE TO PRECOOLER SCOOP AREA HAD CRACK DAMAGE ON SURFACE. THRUST REVERSER RT HALF NR 4 ENG IAW MM. FACILITY S/M WORK REMOVED CRACKED FITTING FROM FWD CORE COWL IAW DC-8 SRM 51-1-21 PAR 5, 51-3-0 PAR 1 & 2 PG 1 AND 51-1-24 PG 1. CLEANED FITTING AREA PER SRM 51-1-8 PAR 6A. OK TO TREAT, PRIME AREA AND NEW FITTING TREATED, PRIMED AREA, NEW FITTING JA DC-8 SRM 51-1 PG 13.16. OK TO INSTALL NEW FITTING INSTALLED NEW FITTING PER SRM. PENDING RIGGING OPS CK PERFORMED NR 4 T//R CK AND RIG FOUND OK IAW DC8 MM 78-30-0.