As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
N1 VIB AT 1.7 IN FLT, QRH C/W. VIBE REACHED 2.4 ON #2 ENG. / DURING BLADE SHAKE FOUND RH FWD SPINNER TO NOT BE COMPLETELY CLOCKED. RE-CLOCKED FWD SPINNER IAW CRJ 900 AMM 72-21-02-400-801-A01-PSA. PERFORMED BLADE SHAKE IAW CRJ 900 AMM 72-21-02-200-803-A01-PSA WITH NO STIFFNESS/ABNORMAL BLADES, THEN VIB CHECKED IAW CRJ 900 AMM 71-00-00-720-806, VIB CHECK GOOD.