ENABLE GAS TRANSMISSION, LLC

Incident Narrative

IN THE EARLY MORNING HOURS OF FEBRUARY 16TH, SEVERE THUNDERSTORMS MOVED THROUGH THE STATE OF ARKANSAS. AT APPROXIMATELY 7:45AM AN OPS TECHNICIAN WITH THE WEST POINT TEAM OVERHEARD ON HIS SCANNER THAT THERE WAS A FIRE ON A PIPELINE ROW NEAR THE BALD KNOW SPORTS COMPLEX, IN BALD KNOB, AR. THE TECHNICIAN IMMEDIATELY RECOGNIZED THAT THIS FIRE WAS LIKELY ON THE JM-10 ROW (IN HCA) AND QUICKLY RESPONDED TO THE LOCATION, ARRIVING AT 8:00AM. WHILE ON THE WAY TO THE SCENE, THE TECHNICIAN CONTACTED HIS OPS MANAGER AND SUPERVISOR, THE PIPELINE SPECIALIST, AND COMPLIANCE SPECIALIST COVERING THIS AREA. THE FOLLOWING NRC NOTIFICATIONS WERE MADE FOR THIS EVENT: NRC# 1360128 (INITIAL) AT 8:14 AM ON 3-16-23 NRC# 1360130 (UPDATED LOCATION) AT 8:29 AM 3-16-23 NRC# 1360277 (48HR UPDATE) 3-17-23 NRC# 1360366 (FINAL UPDATE) 3-18-23 WHEN THE TECHNICIAN ARRIVED ON SCENE HE SAW A 3' FLAME COMING FROM JM-10; THE FLAME WAS DUE TO A LIGHTNING STRIKE. THE DECISION WAS MADE TO LOWER PRESSURE ON THE LINE FROM 300 PSI TO 200 PSI AND TO MONITOR THE LEAK AND FLAME WHILE KEEPING THE LINE IN SERVICE UNTIL A STOPPLE BY-PASS COULD BE COMPLETED; THIS WAS DONE TO ENSURE GAS SERVICE WAS NOT INTERRUPTED FOR THE COMMUNITIES OF BALD KNOB AND JUDSONIA. OPS PERSONNEL WERE STATIONED AROUND THE CLOCK AT THE LEAK SITE, AND AT BOTH THE UPSTREAM AND DOWNSTREAM VALVE SITES, SO THAT THE LINE COULD BE ISOLATED IF CONDITION OF THE LEAK CHANGED FOR THE WORST. STOPPLE BY-PASS EQUIPMENT ARRIVED ON SITE FRIDAY MORNING AND CREWS WORKED TO INSTALL THE STOPPLE FITTINGS. BY 9PM, ON FRIDAY 2-17-23, GAS WAS ON THE BY-PASS LINE. THE SECTION OF PIPE WITH THE LEAK WAS BLOWN DOWN AND THE FLAME WAS EXTINGUISHED. ON SATURDAY, 2-18-23, THE ISOLATED SECTION WAS CUT OUT AND REPLACED. -AT 12:39PM, WELDS WERE COMPLETE ON THE NEW PIPE AND X-RAY BEGAN. -AT 2:03PM, NEW PIPE WAS PURGED AND PACKED. REMOVAL OF STOPPLES BEGAN. -AT 5:02PM, PRESSURE WAS RETURNED TO NORMAL AT 300 PSI *REMOVED 'SUSPECTED' LIGHTNING STRIKE LANGUAGE FROM PART H - NARRATIVE DESCRIPTION OF THE INCIDENT. THE LEAK WAS CAUSED BY A LIGHTING STRIKE.