What was found
EMERGENCY LIGHTS FLICKER IN FLIGHT WITH PROP HEAT ON. INSPECTED NR 2 BRUSH BLOCK. NO DEFECT NOTED. REMOVED BOTH SPINNER AND INSPECTED HEATER LEADS. NO DEFECTS NOTED. REMOVED NR 1 BRUSH BLOCK AND R & R EMERGENCY LIGHT CONTROL BOX. GROUND RUN ACFT. OPS CHECKED GOOD. EMERGENCY LIGHTS FLICKER IN FLIGHT WITH PROP HEAT ON. R & R NR 2 CIRCUIT BREAKER IN AC CONTACTOR BOX. C/B 2421-CB10. PN 2TC12-5. CLEANED GROUND STUD 9811-GS12 BEHIND L/E 612AR. R & R NR 2 BRUSH BLOCK. R & R FUSE 2421-F12 INSIDE OF NR 2 ACFT CONTACTOR BOX. OPS CHECKED GOOD.