PHILLIPS 66 PIPELINE LLC

Incident Narrative

AT APPROXIMATELY 9:00 AM ON OCT 24, 2017, COMPANY EMPLOYEES ARRIVED AT THE RAY BOOSTER STATION AND DISCOVERED A 1/2 INCH DRAIN VALVE ON ONE OF THE PH-10 4-INCH RECEIVER TRAP VALVES WAS DRIPPING. THE PIPELINE FLOW WAS BYPASSED AROUND THE 4- INCH RECEIVER TRAP VALVE WITH THE LEAKING DRAIN VALVE SO THAT THE 4 INCH VALVE COULD BE CLOSED (TO STOP THE LEAK) AND THE LEAKING 1/2 INCH DRAIN VALVE COULD BE REMOVED. A NEW 1/2 INCH DRAIN VALVE WAS INSTALLED AND THE 4 INCH RECEIVER TRAP VALVE WAS RETURNED TO SERVICE. THE CAUSE OF THE RELEASE WAS DUE TO A CRACK FOUND IN THE 1/2 INCH VALVE BODY AT THE THREADED CONNECTION. THE CAUSE WAS DUE TO IMPROPER TORQUEING DURING INSTALLATION. A CONTRIBUTING FACTOR TO THE INCIDENT WAS DETERMINED TO BE THE OVER USE OF TEFLON TAPE WHICH REQUIRED GREATER TORQUE FORCE TO INSTALL THE 1/2 INCH VALVE. CORRECTIVE ACTION TAKEN - ISSUE A COMMUNICATION TO THE ORGANIZATION TO TAKE CARE DURING THE INSTALLATION OF SMALL CAST VALVES SUCH AS THESE TO NOT OVER-TIGHTEN THE VALVES. INCLUDE A STATEMENT ABOUT NOT OVER-USING TEFLON TAPE WHICH CAN ALSO LEAD TO UNDUE STRESS ON THREADED CONNECTIONS. REINFORCE ALL POLICIES AND PROCEDURES FOR PROPER INSTALLATION AND MAINTENANCE FOR THREADED CONNECTIONS DURING THE OPERATIONS EXCELLENCE MONTHLY MEETING. 3/20/2019 - JUST NOTICED THAT THIS REPORT WAS NEVER FINALIZED IN THE SYSTEM. THERE ARE NO CHANGES SINCE THE UPDATE SUBMITTED ON FEB 5, 2018. THIS IS JUST TO SUBMIT THE REPORT AS FINAL.