What was found
THE END SHAKES WERE CHECKED ON THIS INSTRUMENT AND FOUND CONSIDERABLY UNDER THE SPECIFIED TOLERANCE CALLED OUT IN THE O/H MANUAL. THE O/H MANUAL CALLS OUT AN END-SHAKE OF .0020 INCH TO .0030 INCH ON ALL 3 OF THE CRITICAL MECHANISM SHAFTS. THIS INSTRUMENT MEASURED .0004 INCH ON ONE SHAFT, AND .0005 INCH ON THE OTHER SHAFT. THIS MINIMAL END-SHAKE CONDITION COULD CAUSE INSTRUMENT TO HANG UP WHEN EXPOSED TO A COLD CONDITION THAT CAN BE EXPECTED IN AN AIRCRAFT ENVIRONMENT.