What was found
(CAN) "HYD" WARNING LIGHT WOULD NOT GO OUT DURING SERVICING GROUND RUN. REPLACEMENT PRESSURE SWITCH INDICATED PROPER OPERATION OF HYD SYS. CAN NOT DETERMINE IF PRESSURE SWITCH PROBLEM ELECTRICAL OR MECHANICAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) "HYD" WARNING LIGHT WOULD NOT GO OUT DURING SERVICING GROUND RUN. REPLACEMENT PRESSURE SWITCH INDICATED PROPER OPERATION OF HYD SYS. CAN NOT DETERMINE IF PRESSURE SWITCH PROBLEM ELECTRICAL OR MECHANICAL.