As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) UPON SHUTDOWN WITH THE STANDBY BATT SWITCH SELECTED OFF, THE STANDBY BATT CAUTION LIGHT DID NOT ILLUMINATE (BATTERY STAYED CONNECTED). CONTACTOR K25 WAS REPLACED AND THE SYSTEM TESTED SERVICEABLE. THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE (TC NR 20180102005).