What was found
DURING CRUSE, HAD A RESISTOR AND A ZENER DIODE (WHICH IS PART OF THE RADIO DIMMER SWITCHING CIRCUIT) FAILED IN FLIGHT. THIS FAILURE CAUSED A LARGE AMOUNT OF SMOKE IN THE CABIN THE PILOT LANDED THE ACFT AT THE AIRPORT. THIS SWITCH IS PART OF STC SA01216WI. THE CAP AND THE STC HOLDER WERE CONTACTED ABOUT THIS ISSUE. BOTH THE CAP AND THE STC HOLDER WAS AWARE OF THIS PROBLEM AND THEY INCORPORATED A REPAIR FOR THIS BY REQUIRING A LARGER RESISTOR AND DIODE.