As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENGINE START. HYD 1 CAUTION LIGHT DID NOT EXTINGUISH AS IT SHOULD AFTER START. HYD SYS 1 PRESSURE GUAGE INDICATED NORMAL OPERATING PRESSURE. ACFT SHUTDOWN, . MX REPLACED HYD 1 PRESSURE SWITCH. ACFT OPERATED NORMALLY ON STARTUP AND RETURNED TO SERVICE.