As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INVESTIGATED REPORT OF VIBRATION FELT THROUGH ACFT AFTER REPLACEMENT OF RT ENGINE NACELLE INLET ANTI-ICE SHUT-OFF VALVE ASSY. WITH AN O/H VALVE ASSY. SUSPECT VIBRATION CAUSED BY RAPID MODULATION OF ANTI-ICE SHUTOFF VALVE. VALVE O/H 12/21/2009 ON WO R82102. RECOMMEND INVESTIGATE IF A VALVE O/H PROCEDURES QA ISSUE OR IF COMPONENT OVERHAUL LIMITS NEED TO BE REVISED.