ONEOK WESTEX TRANSMISSION, LLC

Incident Narrative

ON OCTOBER 20, 2019 AT 2:27 A.M. A CONTROL ROOM EMPLOYEE RECEIVED AN ACTIVE LOW OIL ALARM AND COMPRESSOR MALFUNCTION ALARM ON UNIT 6307 AT THE LAMESA STATION. A FIELD EMPLOYEE WAS DISPATCHED TO VERIFY THE PROBLEM. AT 4:05 A.M. THE FIELD EMPLOYEE DISCOVERED THE UNIT TO BE ON FIRE. EMERGENCY SERVICES WAS NOTIFIED AND DISPATCHED TO THE STATION. AT 4:07 A.M. A STATION ESD WAS ACTIVATED BY THE FIELD EMPLOYEE, AT 4:46 A.M. THE FIRE WAS CONTAINED, AND NOTIFICATIONS WERE MADE. THE INITIAL CAUSE IS STILL UNDER INVESTIGATION. ONEOK HAS CONTRACTED WITH BAKER RISK OUT OF SAN ANTONIO, TX TO FURTHER INVESTIGATE AS TO THE ROOT CAUSE OF THE INCIDENT. MORE INFORMATION WILL BE UPDATED AS IT BECOMES KNOWN. UPDATE - APRIL 22, 2020 - UPDATED D7B - ESTIMATED COST OF OPERATORS PROPERTY DAMAGE AND REPAIR. COMPLETION OF REPAIRS EXPECTED TO BE COMPLETE EARLY 4TH QUARTER 2020. INVESTIGATION OF FAILURE IS CURRENTLY ON HOLD DUE TO COVID-19 RESTRICTIONS. INVESTIGATION IS EXPECTED TO RESUME LATE MAY 2020. UPDATE - FEBRUARY 17, 2021 - INVESTIGATION IS ONGOING SEVERAL POSSIBLE SCENARIOS ARE BEING LOOKED AT THIS TIME. NOTHING CONCLUSIVE HAS BEEN FOUND THAT WOULD HAVE INITIATED OR FUELED THE FIRE. ADDITIONAL TESTING AND INVESTIGATION IS CONTINUING PENDING COVID-19 RESTRICTIONS AND GUIDELINES. SUBMITTED BY BH. UPDATE - AUGUST 25, 2022 - FURTHER REVIEW OF THIS INCIDENT IS THE LUBE OIL PUMP TUBING ASSOCIATED WITH THE TURBINE AND COMPRESSOR SKID BEGAN TO LEAK RESULTING IN THE LUBE OIL BEING RELEASED THAT CAUSED THE LOW OIL ALARM NOTICE TO OUR CONTROL CENTER. AT SOME POINT IN TIME BETWEEN THE ALARM AT 2:27 AM AND OUR EMPLOYEE ARRIVING ON SITE AT 4:05 AM, THE OIL CAUGHT FIRE DUE TO THE CLOSE PROXIMITY TO THE HOT ENGINE EXHAUST SYSTEM. THERE IS NO EVIDENCE THERE WAS A RELEASE OF GAS OR FAILURE OF A GAS COMPONENT WHICH INITIATED THE EVENT. SUBMITTED BY BRENT THEEDE