As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX- FLIGHT 2187 (PDX-RDM) RETURNED TO THE FIELD FOR A HYDRAULIC PRESSURE FLUCTUATION AFTER TAKEOFF AND GEAR RETRACTION. LANDING UNEVENTFUL. MAINTENANCE WAS ABLE TO DUPLICATE AND FOUND CORROSION ON THE PINS FOR THE CONNECTOR FOR THE NR 2 TRANSDUCER. CLEANED UP PINS AND CONNECTOR. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.