What was found
FOUND THE APU INOP.(<P>IAW SRM 24-31-02, 49-00-04 REV. 28 AND WDM 24-32-41, 49-14-11, 49-15-11, 49-41-11, 49-61-11 REV. 28 PERFORMED WIRING CHECK, THE RESULT WAS SATISFACTORY. FOUND DIODE R65 APU SHUTDOWN ISOLATION FUNCTION. IAW WDM 49-61-11 REV. 28 AND SWPM 20-90-11 REV. 73 REPLACED R65 DIODE WITH UNUSED DIODE. IAW AMM 49-11-00-802-002 REV. 129 PERFORMED APU STARTING AND OPERATION. THE CONDITION CHECKED NORMAL. IAW AMM 49-61-05-742-045, REV. 129, PERFORMED APU CONTROL UNIT BITE TEST. THE RESULT WAS SATISFACTORY.</P>)