As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACCESS BUSS CAUTION ILLUMINATED SEVERAL TIMES DURING FLIGHT. WOULD STAY ON AND EMERGENCY LIGHTS WOULD COME ON BEFORE BEING ABLE TO TRANSFER TO BUSS 2 CAUTION WOULD DISAPPEAR. R & R ACCESS BUSS SENSE RELAY K1XD IAW AMM TASK 24-51-27-000-801 AND 24-51-27-400-801. OPS CHECKED GOOD IAW AMM TASK 24-51-27-700-801.