As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT AC BUSS CAUTION LIGHT ILLUMINATED ALONG WITH STALL WARNING AND RT TRU CAUTION LIGHT. CHECKED NR 2 ENGINE BRUSH BLOCK AND CLEANED. CHECKED WIRING IN NR 2 NACELLE AND CLEANED CONNECTOR ON AC GENERATOR. CHECKED AC CONTACTOR BOX. NO DEFECTS NOTED. RAN ACFT FOR 20 MINUTES POWERED BY NR 2 AC GENERATOR. NO CAUTION LIGHTS ILLUMINATED DURING RUN.