What was found
VERY LOUD RUMBLE ON TAKE OFF. UPON LANDING, NR 2 ENGINE WAS FOUND TO HAVE COILS MISSING FROM LT SIDE. RT SIDE DAMAGED, ALONG WITH VARIOUS OTHER AREAS OF DAMAGE TO DUCT WORK, FIRE SEAL, AND HYD RACEWAY. ALL ITEMS WERE REPAIRED/REPLACED IAW MM 72-11-02,75-24-00,71-11-06, AND SRM 51-01-10. BOTH LT AND RT UPPER COWL LATCHES (COWL MOUNTS) INSPECTED. PERFORMED OVERALL VISUAL INSP OF ENTIRE ENGINE AND RELATED SYSTEMS TO INCLUDE FIRE PROTECTION. REPOSITIONED CLAMPS, BRACKETS, AND HOSES AS REQUIRED IAW 71-00-00. NO FURTHER DEFECTS NOTED, AIRCRAFT RETURNED TO SERVICE.