PHILLIPS 66 PIPELINE LLC

Incident Narrative

AT 6:45 AM ON 12/19/2016, A PHILLIPS 66 OPERATOR DISCOVERED A CRUDE OIL SPILL ON THE ODESSA CRUDE TERMINAL #4 UNIT WT-10 MAINLINE PUMP. THE SPILL CAME FROM A CRACKED 3/8"" X 1/2"" SWAGE CONNECTION TO THE SEAL FLUSH STRAINER. THE SPILL WAS ESTIMATED TO BE 0.22 BARRELS. OPERATION OF WT-10 WAS SWITCHED TO THE #3 UNIT PUMP AND THE #4 UNIT PUMP WAS SHUTDOWN AND BLOCKED IN TO STOP THE LEAK. THE CONTAMINATED SOIL FROM THE SPILL WAS PICKED UP AND PLACED IN BARRELS FOR DISPOSAL. THE SWAGE WHICH FAILED WAS REMOVED AND SENT FOR METALLURGICAL ANALYSIS TO DETERMINE THE FAILURE CAUSE. A NEW SWAGE WAS INSTALLED ON THE #4 UNIT AND THE PUMP WAS RETURNED TO OPERATION. THE SUBSEQUENT ANALYSIS REPORT INDICATED THE SWAGE FAILED DUE TO FATIGUE CRACKING MOST LIKELY DUE TO VIBRATION. HOWEVER, CHEMICAL ANALYSIS SHOWED THE SWAGE DID NOT MEET REQUIREMENTS FOR CARBON STEEL GRADE A234 WBP. VIBRATION ANALYSIS ON THE PUMP INDICATED THAT, ALTHOUGH VIBRATIONS COULD BE REDUCED, THE LEVELS OF VIBRATION WERE NOT EXCESSIVE FOR THIS SERVICE. THEREFORE, THE FACT THAT THE SWAGE MATERIAL WAS NOT ADEQUATE FOR THE SERVICE WAS THE MAIN CAUSE OF THE FAILURE. THE SWAGE INSTALLED ON THE #4 UNIT WAS A NEW SWAGE WHICH MET ALL REQUIREMENTS FOR THIS SERVICE. IN ADDITION THE SWAGE ON THE #3 UNIT PUMP WAS ALSO REPLACED.