What was found
DEN - AFTER LANDING GEAR EXTENSION PROX SYSTEM CAUTION MESSAGE RECEIVED. ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE INTERROGATED MDC AND FOUND L/G SELECTOR VALVE RETRACT SOLENOID LOAD ON. REMOVED/REPLACED L/G CONTROL PANEL LEVER IAW CRJ AMM 32-31-01-000/400-802-A01. PERFORMED L/G EXTENSION/RETRACTION SYSTEM CHECK IAW CRJ AMM 32-30-00-710-801. C/W QX TASK CARD R071101. ALL OPS CHECKS SATISFACTORY AT THIS TIME. AIRCRAFT RETURNED TO SERVICE.