What was found
DURING REPLACEMENT OF NR 1 BEARING CARBON SEAL, FOUND DAMAGE TO 5TH STAGE HPC BLADES. FAILED BOROSCOPE INSPECTION. REPLACED ENGINE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING REPLACEMENT OF NR 1 BEARING CARBON SEAL, FOUND DAMAGE TO 5TH STAGE HPC BLADES. FAILED BOROSCOPE INSPECTION. REPLACED ENGINE.