As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING TC 78472000, NR 1 ENGINE FOUND UPPER CLEVIS ROD END LINK LOOSE JUST FWD OF PRSOV. ACFT GROUNDED. REPLACED UPPER CLEVIS ROD END LINK IAW MANUAL 71-00-02, FOUND DAMAGE TO THE NR 1 ENGINE PNEUMATIC DUCT. REPLACED THE PNEUMATIC DUCT IAW AMM 36-11-01-000-802, 400-802. LEAK CHECKED GOOD.