As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN SHALLOW CLIMB A DUPLICATABLE VIBRATION CAN BE FELT IN THE YOKE AND AIRPLANE. INSPECTION OF THE AIRCRAFT FOUND THE LH ELEVATOR TRIM TAB ATTACH BRACKET BROKEN. REMOVED AND REPLACED ELEVATOR TRIM TAB ASSEMBLY IAW DHC-6-300 AMM CH 27-30. OPERATIONAL CHECK AND FUNCTIONAL TEST FLIGHT GOOD.