As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON BOTH DIAGONAL SIDE BRACE FITTING BORES AT NUMBER 4 NACELLE STRUT. ACCOMPLISHED BORING THE DUAL SIDE BRACE FITTING ON THE NACELLE STRUT AT NUMBER 4. BOTH HOLES DRESSED OUT PER COA AND SB 747-54A 2218 (FINAL HOLE DIA AFTER HONE=2.2454"). REASSEMBLED & INSPECTED. READY FOR SERVICE.