What was found
DIVERTED UNDER AMBER ALERT DUE TO VIBRATION IN NR 1 ENGINE. ENGINE REPLACED. HPC RUB STRIP DISBONDED CAUSING COMPRESSOR VIBRATION. ENGINE UPGRADED WITH RUB STRIP MODIFICATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DIVERTED UNDER AMBER ALERT DUE TO VIBRATION IN NR 1 ENGINE. ENGINE REPLACED. HPC RUB STRIP DISBONDED CAUSING COMPRESSOR VIBRATION. ENGINE UPGRADED WITH RUB STRIP MODIFICATION.