As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: NR 1 ENGINE HAD A PIECE OF METAL SEPARATED FROM THE INNER COWL EXHAUST. MAINTENANCE REPLACED NR 1 ENGINE EXHAUST NOZZLE PER AMM 78-11-11-000-010-A AND 78-11-11-400-010-A. MAINTENANCE ALSO PERFORMED SATISFACTORY OPERATIONAL CHECK.