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Freeport LNG Improvement, L.P. (Freeport LNG) is offering the outcomes of an unbiased, third-party root trigger failure evaluation (RCFA) report on the June 8, 2022 incident that occurred at its liquefaction facility.
The RCFA report was commissioned by Freeport LNG and independently carried out by a extremely certified incident investigation firm, IFO Group, as a way to determine the causes underlying the June eighth incident. Over the course of just about 5 months, IFO Group investigated the incident, collected and analyzed bodily specimens from the incident, interviewed witnesses, reviewed course of and design knowledge, and finally developed the RCFA report, figuring out particular causes that led or contributed to the June eighth incident.
The protection and safety of our workforce and surrounding group, and environmental stewardship are Freeport LNG’s high priorities. Freeport LNG believes that transparency across the causes of this incident, and the remedial actions it’s taking to make sure an incident of this nature by no means happens once more, is vital to sustaining public belief.
With that in thoughts, the outcomes of the basis trigger failure evaluation ready by IFO Group are as follows:
Direct Trigger
• Isolation of a piping phase containing cryogenic liquefied pure gasoline (LNG) with out correct overpressure safety, which LNG then warmed and expanded resulting from publicity to ambient circumstances, leading to a boiling liquid, increasing vapor explosion, or BLEVE, and the rupturing of the piping phase.
Root Causes
• Stress security valve (PSV) testing process and automobile seal program deficiencies;
• Failure to repurpose temperature indicator alarms used for calm down operations throughout commissioning on LNG piping that might warn operators of accelerating temperatures in LNG piping throughout operations; and
• Working procedures that allowed operator discretion to shut valves that might permit LNG to be remoted in a piping phase.
Contributing Causes
• Failure of 2016 Hazard and Operability examine to guage the potential for a blocked-in LNG piping phase with insufficient overpressure safety;
• Failure to make the most of administration of change course of for revisions to tank administration working procedures;
• Failure to precisely and well timed diagnose sudden pipe motion as being resulting from piping stresses from the overpressuring of an adjoining piping phase; and
• Operator fatigue on account of important time beyond regulation wants.
IFO Group proposed suggestions to resolve every of the above root and contributing causes, and Freeport LNG is implementing every of these suggestions. Particularly, Freeport LNG has made important enhancements to its PSV testing processes and automobile seal program, applied procedural modifications to keep away from working eventualities that might permit blocked-in LNG in piping segments, and revised its management system logic to alert management room operators to valve positions or temperature readings that point out potential isolation of LNG in any piping segments. Freeport LNG can also be updating its coaching program to deal with causes of the incident, in addition to identification and prognosis of irregular working circumstances within the facility.
To complement IFO’s report, Freeport LNG additionally engaged one other unbiased marketing consultant to carry out a full assessment of its LNG storage and switch working procedures, its management techniques upkeep and inspection procedures, and its personnel {qualifications} and coaching applications. Because of this unbiased, multi-month assessment, Freeport LNG is implementing numerous advisable enhancements in these areas. Moreover, Freeport LNG has undertaken a major hiring effort to extend LNG plant worker staffing by over 30%, as a way to scale back the quantity of time beyond regulation, in addition to create new purposeful departments inside the group which are targeted on improved coaching, operational excellence, high quality assurance, and improved enterprise efficiency. Freeport LNG can also be executing an intensive company-wide course of security administration initiative to use and reinforce course of security ideas into day by day work processes throughout the group.
Freeport LNG is dedicated to rising from the June eighth incident with an unmatched deal with security, operational integrity and operational excellence.
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