What was found
WHILE PERFORMING TU360 UPGRADE TO ENGINE SN 18789 FOUND THE SECOND STAGE TURBINE DISK BLADE LOCKS DISPLACED LEADING TO BLADE SHIFT. R & R MODULE 3.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE PERFORMING TU360 UPGRADE TO ENGINE SN 18789 FOUND THE SECOND STAGE TURBINE DISK BLADE LOCKS DISPLACED LEADING TO BLADE SHIFT. R & R MODULE 3.