As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT DIVERTED ON ACCOUNT OF AIRCRAFT VIBRATION. EMERGENCY WAS DECLARED. MAINTENANCE ACCOMPLISHED JOB CARD 26L00005067, TSM 21-26-00-810-837-A, REPLACED FAN EXTRACT 18HQ AND FAN 20HQ IAW AMM 21-26-51. REPLACED SEALS AS REQUIRED ON AFT NOSE LANDING GEAR DOORS IAW AMM 32-22-13. (SEE SDR # AALA201909309015)