What was found
(CAN) AFTER TAKEOFF, ENGINE VIBRATION ON NR 4 ENGINE AT 3.0 IPS. CREW REDUCED POWER TO FLIGHT IDLE AND VIBRATION DECREASED TO 1.0 IPS. ONE BLADE MISSING ON 4TH TURBINE DISC AND 4TH NOZZLE DAMAGE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) AFTER TAKEOFF, ENGINE VIBRATION ON NR 4 ENGINE AT 3.0 IPS. CREW REDUCED POWER TO FLIGHT IDLE AND VIBRATION DECREASED TO 1.0 IPS. ONE BLADE MISSING ON 4TH TURBINE DISC AND 4TH NOZZLE DAMAGE.