As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT HYDRAULIC PRESSURE FLUCTUATES. FOUND RIGHT M.L.G. TRUNNION SWITCH OUT OF RIG CAUSING INBOARD GEAR DOORS TO CYCLE SEVERAL TIMES DURING RETRACTION. ADJUSTED RIGHT M.L.G. TRUNNION SWITCH AND PERFORMED GEAR RETRACTIONS PER THE LEARJET SERVICE MANUAL. OPERATION CHECK AND HYDRAULIC PRESSURE WAS NORMAL.