What was found
NR 1 TRANSPONDER INOP. NR 2 TRANSPONDER INOP. NR 1 PREVIOUSLY DEFERRED SEE LP 9230-04. CLOSING ACTION REMOVED AND REPLACED TRANSPONDER SYS FUNCTIONAL TEST OK BY AVIONIC SVC RO A97A0017 USING IFR ATC-600A29 GROUND TEST SET PER MM 34-53-0. THIS CLEARS DMI C9230041-7939 PLACARD REMOVED. REMOVED AND REPLACED NR 2 TRANSPONDER, INSPECTED ANTENNA AND ALL COAX CONNECTORS, NO DEFECTS. SYS FUNCTIONAL TEST OK W/IFR ATC600-A TESTER (AVIONICS SERVICES RO 797A0017) PER MM 34-53-0.