What was found
GEAR DISAGREE WARNING MESSAGE ON CLIMB OUT, ALL GEAR STAYED DOWN AND LOCKED WHILE GEAR LEVER WAS IN UP POSITION. RAN THROUGH QRH, AND RETURNED TO FIELD. (FLIGHT 4290 - FILED CLOSED)THIS DISCREPANCY WAS TRANSFERRED TO CAMP ITEM 28601999 WITH THE FOLLOWING CORRECTIVE ACTION: "PLEASE REF CAMP 28605072-1 REMOVED AND REPLACED THE NLG WOW CENTERED AND LVDT HARNESS ASSEMBLY IN REF TO CRJ700 AMM 32-61-05. SEE CP- 28605107 FOR RIGGING AND OPS CHECK OF HARNESS. PERFORMED GEAR SWING IN REF TO CRJ700 AMM 32-30-00. OPS CHK NORMAL ON GROUND "