What was found
(CAN) AIRCRAFT REPORTED THE WEATHER RADAR WAS U/S ON CLIMB OUT. THE CREW DECIDED TO RETURN DUE TO UNFAVORABLE WEATHER CONDITIONS - AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE SENT AND TESTED THE SYSTEM - TECHNICIAN REPORTED SYSTEM CHECKED SERVICEABLE. DECISION MADE TO REPLACE WEATHER RADAR FOR TROUBLESHOOTING REASONS. R/T REPLACED, S/NON1523, S/N OFF 4972, SYSTEM GROUND CHECKED SERVICEABLE. AIRCRAFT RETURNED TO SERVICE WITH NO FURTHER INCIDENTS TO REPORT.