What was found
PARKING BRAKE NOT RELEASED CAUTION MESSAGE DURING CRUISE. RAN QRH MESSAGE PERSISTED INTERMITTENTLY. NO ISSUES UPON LANDING. (FLT 3486 FILED CLOSED)PERFORMED T/S TO PARKING BRAKE NOT RELEASED CAUTION MESSAGE PER ERJ175 FIM 32-41-00, FOUND PRK BRK PR SW 2 FAULT CODE# 32400016UT1 ,REMOVED AND REPLACED # 2 HYD SYS EMERGENCY/PARKING BRAKE PRESSURE-SWITCH PER ERJ175 AMM 32-44-09, OPS CHECK GOOD, NO LEAK NOTED, NO CAUTION MESSAGES NOTED.NO 30 DAYS HISTORY