What was found
PILOTS ATTITUDE INDICATOR STARTED SPINNING, SMOKE DETECTED IN COCKPIT. FOUND PILOTS ATTITUDE INDICATOR ISOLATION AMP FAILED AND SOURCE OF SMOKE. FOUND WIRING AT ATTITUDE INDICATOR HAD CHAFED ON DEFOGGER MOUNTING BOLT SHORTING AMP SIGNAL TO GROUND AND CAUSING AMP FAILURE AND ATTITUDE INDICATION TO SPIN LATERALLY. REPAIRED WIRE AND APPLIED CHAFE PROTECTION TO WIRE HARNESS. SUBMITTER STATED THERE IS INSUFFICIENT SPACE BETWEEN BOLT HEAD AND REAR OF CONNECTOR.