What was found
WHILE INFLIGHT, THE ACFT STARTED HAVING VIBRATIONS. CAPTAIN DECLARED AN EMERGENCY WITH ATC & DIVERTED TO CVG WITHOUT FURTHER ISSUES. INSTALLED NEW RT (HYD SYS #2) WISHBONE LOCATED ABOVE RT CENTER ELEVATOR POWER-CONTROL UNIT IAW AMM 27-33-01-400-802. RE-INSTALLED RT (HYD SYS #2) ELEVATOR POWER CONTROL UNIT IAW AMM 27-33-01-400-801. PERFORMED RIGGING OF THE RT ELEVATOR POWER-CONTROL UNITS IAW AMM 27-33-01-820-801. RIGGING OF THE RT PCU`S GOODS AT THIS TIME. PERFORMED RIGGING OF THE RT ELEVATOR PCU INPUT TORQUE TUBE STOPS IAW AMM 27-33-01-820-802. RIGGING CHECK OF THE RT INPUT TORQUE TUBE STOPS GOOD AT THIS TIME. PERFORMED OS CHECK OF THE ELEVATOR CONTROL SYS IAW AMM 27-31-00-710-801. OPS CHECK GOOD.