What was found
DURING CLIMB-OUT, GEAR PARTIALLY CYCLED THREE TIMES OVER A FIVE MINUTE PERIOD. PASSENGER REPORTED SEEING GEAR DOORS COME OPEN DURING CLIMB-OUT. RETURNED TO FIELD WITHOUT FURTHER INCIDENT. ALL PASSENGERS WERE OK. NO CFR. INSPECTED PSEU, FOUND RT MLG DOOR RCLG GAP TOO LARGE. FOUND RGD RCL GAP TO FLUCTUATE WILDLY. INSTALLED NEW SENSOR. PERFORMED EXTENSION AND RETRACTION OPERATION IAW DHC-8-402 MM 32-31-00-710-801. OPS CHECK GOOD. NO DEFECTS NOTED. ACFT RETURNED TO SERVICE.