As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING FAN LUBE ESN 895170 FOUND CU-N1 COATING ON NR 17 BLADE. GROUNDED - YES. REMOVED AND REPLACED BLADES NR 17 AND NR 5 IAW AMM 72-21-02-000-802-F00. ACCOMP ULTRASONIC INSPECTION OF NEW FAN BLADE ROOTS PER SUPPLEMENT 72-21-02 NO DISCONTINUITIES NOTED. ACCOMPLISHED TEST 7, VIBRATION SURVEY OF AMM 71-00-00 PB 501 N1 VIBRATIONS WITHIN LIMITS, REF T/C 78472002 FOR FAN BLADE LUBE.