CCPS TRANSPORTATION, LLC

Incident Narrative

ON MARCH 20 AT 1:52 PM CST, A MAINTENANCE TECHNICIAN NOTICED OIL ON THE FLOOR IN THE LINE 55 PUMP BUILDING. EDMONTON CONTROL CENTER WAS CONTACTED AND LINE 55 WAS SHUT DOWN. UPON INVESTIGATION, IT WAS DISCOVERED THAT TWO SEPARATE FAILURES OCCURRED THAT RESULTED IN THE RELEASE. THE INBOARD SEAL ON UNIT 2 FAILED AND THEN THE SEAL FAIL SWITCH DID NOT OPERATE CORRECTLY. WHEN THE INBOARD SEAL FAILS, THE RELEASED PRODUCT IS FUNNELED INTO AN AREA WHERE THE MECHANICAL SEAL SAFETY SWITCH WOULD ACTIVATE VIA A FLOAT, WHICH IN TURN WOULD SHUT THE UNIT DOWN. THIS DID NOT OCCUR AND AS A RESULT APPROXIMATELY 40 GALLONS OF CRUDE OIL WAS RELEASED ONTO THE CONCRETE PUMP BUILDING FLOOR. THE LEAK WAS FULLY CONTAINED ON THE CONCRETE FLOOR OF THE BUILDING AND DID NOT ENTER INTO ANY OF THE DRAINAGE SYSTEMS. ONCE THE RELEASE SOURCE WAS IDENTIFIED AS UNIT 2, LINE 55 WAS RESTARTED LATER THAT DAY AND UNIT 2 REMAINED ISOLATED UNTIL REPAIRS COULD BE COMPLETED. GENERALLY, INBOARD SEALS ARE REPLACED (DUE TO LEAKAGE) APPROXIMATELY EVERY 12,000 ' 15,000 RUN HOURS. THIS INBOARD SEAL HAD 12,809 HOURS OF RUN TIME AT THE TIME OF THE FAILURE. IT HAS BEEN DETERMINED THAT THE SEAL FAILED DUE TO NORMAL WEAR AND TEAR. THE SEAL WAS REPLACED AND UNIT 2 WAS PUT BACK INTO SERVICE ON MARCH 25. IN ADDITION, THE FLOAT MECHANISM STUCK ON THE SEAL FAIL SWITCH AND DID NOT ACTIVATE PROPERLY. AFTER THE RELEASE, IT WAS CLEANED AND CHECKED FOR PROPER OPERATION AND THEN PUT BACK INTO SERVICE.