What was found
STANDBY HSI INDICATIONS ERRACTIC ON BOTH HEADING AND CLIMB AND DESCENT INFORMATION. TESTED AND CONFIRMED ON INITIAL POWER-UP SYS OPERATED NORMALLY. TAXI CHECKED ACFT SYS AND FOUND INDICATOR WOULD ERRATICALLY TILT 5 DEGREES TO THE RT WHILE ACFT WAS STRAIGHT AND LEVEL. REMOVED BAD INDICATOR, PN 501-1741-2103, SN 2132A, AND INSTALLED AN EXCHANGE INDICATOR PN 501-1741-2065A. PERFORMED OPS CHECKS OF ATTITUDE AND HEADING WITH NO DEFECTS NOTED. STBY HSI OPS CHECKED GOOD. INDICATOR LIGHTING OPS CHECKED GOOD. WORK DONE IAW MM 34-22-02.