As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: VIBRATION FELT IN AFT CABIN DURING CLIMB. FELT LIKE IT WAS IN THE TAIL AREA APPROXIMATELY 310 KTS, 26000' DURING CLIM AUTOPILOT ON. REMOVED AND REPLACED WORN BUSHINGS ON ELEVATORS. PLEASE SEE SDR #Ï¿½S AALA201911269008 THRU AALA201911269021 FOR ELEVATOR AND HORIZONTAL STABILIZER HINGES THAT WERE REPLACED.