Unrepaired Gas Leaks Caused Pipeline Explosions in Mississippi
Summary
The NTSB determined that unrepaired gas leaks, identified by Atmos Energy Corporation, led to two natural gas pipeline explosions in Jackson, Mississippi, on January 24 and 27, 2024. The agency issued eight safety recommendations to Atmos to improve leak detection, repair procedures, and infrastructure risk assessment.
What changed
The National Transportation Safety Board (NTSB) has concluded that Atmos Energy Corporation's failure to promptly repair identified underground gas leaks directly caused two fatal natural gas pipeline explosions in Jackson, Mississippi, in January 2024. The NTSB found that Atmos classified the leaks as "nonhazardous" and did not repair them for at least eight weeks, allowing gas to migrate into homes and ignite. The investigation also highlighted deficiencies in Atmos's procedures for rechecking known leaks in areas with adverse soil conditions and incomplete records for service lines, hindering risk identification.
As a result, the NTSB has issued eight safety recommendations to Atmos Energy. These recommendations focus on replacing vulnerable pipe connections, increasing the frequency of checks on known leaks, enhancing public and emergency responder education regarding gas leak reporting, improving service-line data management, and refining risk assessment methods. The NTSB also noted that natural gas alarms inside homes could have provided earlier warnings to occupants.
What to do next
- Implement enhanced procedures for regularly rechecking known leaks in areas with adverse soil conditions.
- Improve record-keeping for service lines to better identify high-risk infrastructure.
- Enhance risk assessment methods to adequately address aging pipelines and soil-related hazards.
Source document (simplified)
Unrepaired Leaks Led to Natural Gas Pipeline Explosions in Mississippi
3/26/2026
This map and photos show the locations involved in the accident. The top image is a topographical map illustrating the distance between the Bristol Boulevard and Shalimar Drive sites. The bottom right photo shows the Shalimar Drive residence after the explosion, and the bottom left shows the Bristol Boulevard residence. (Images courtesy of Google Earth, PHMSA, and the Mississippi Public Service Commission; arranged clockwise from top.)
WASHINGTON (Mar. 26, 2026) — Two natural gas pipeline explosions that destroyed homes in Jackson, Mississippi, happened after Atmos Energy Corporation failed to promptly repair underground gas leaks it had already identified, the National Transportation Safety Board said Thursday.
The first explosion occurred at a home on Jan. 24, 2024. The blast and fire killed one person, injured another, and destroyed the house. Three days later, on Jan. 27, gas from a similar leak caused another explosion and fire at a home about 0.7 miles away, destroying two homes.
The NTSB determined that soil movement loosened underground pipe connections, allowing gas to escape. Atmos detected the leaks at least eight weeks before the explosions but classified them as “nonhazardous” and did not repair them. Gas migrated into the homes, accumulated, and ignited. The NTSB also found that Atmos lacked sufficient procedures to regularly recheck known leaks in areas with adverse soil conditions, allowing the leaks’ consequences to worsen over time.
Several residents reported smelling gas before the explosions but did not contact the company. NTSB found that if pipeline operators had provided clearer, more direct instructions on what to do when smelling gas, residents would have known to immediately leave the area and call 9-1-1 and the gas company each time they smelled it.
The investigation also found that Atmos did not maintain complete records for many of its service lines in Mississippi, limiting its ability to identify high-risk infrastructure. Its safety management programs did not adequately address aging pipelines or soil-related hazards. Investigators noted natural gas alarms inside the homes might have warned occupants to evacuate before the explosion.
As a result of the investigation, the NTSB issued eight safety recommendations to Atmos. The recommendations call for replacing vulnerable pipe connections, checking known leaks more frequently, improving public and emergency responder education, better tracking service-line information, enhancing risk assessment methods, and making gas alarms available to residents. The final report, including the probable cause and safety recommendations, is available on the investigation webpage. The public docket is also available online.
To report an incident/accident or if you are a public safety agency, please call 1-844-373-9922 or 202-314-6290 to speak to a Watch Officer at the NTSB Response Operations Center (ROC) in Washington, DC (24/7).
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