As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE RIGHT ENGINE SURGES FOLLOWED BY NR 2 AC GENERATOR FAILURE, FLASHING CAS MESSAGES AND SMOKE IN THE COCKPIT. GROUND RUN SHOWED SURGES ARE CAUSED BY ECU WIRING HARNESS AND SMOKE TO BE COMING FROM LABRINTH SEAL DRAINS. ENGINE SURGES CAUSED AC GENERATOR TO DROP OFF LINE. REPLACED WIRING HARNESS IAW MAINT MANUAL. COMPLIED WITH RUNS IAW MAINT MANUAL AND ENGINE OPS CHECKED GOOD. BLEED AIR CHECKED GOOD.