As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"HYDRAULIC" CAUTION ANNUNCIATOR CAME ON ABOUT 10 MINUTES INTO FLIGHT. HAD TO PUMP GEAR DOWN BY HAND. MAINTENANCE FOUND HYDRAULIC PUMP PRESSURE ABOVE MAX LIMIT ABOVE 3050 PSI. ADJUST PUMP PRESSURE TO 3000PSI. VERIFIED ACCUMULATOR PRESSURE WITHIN LIMITS. OPERATION CHECK GOOD ON PRESSURE SWITCH BEFORE 2450PSI ACTIVATION OF PUMP. RETRACTED GEAR, NO EXTERNAL LEAKS NOTED. GEAR DID NOT CYCLE PUMP. OPERATIONS GOOD, EXTENDED GEAR. REFERENCE PC 12/47 AMM CH 12-A-29-00-00-00A-903A-A, 12-A-29-10-02-00A-901A-A.