Gas leaked from poor fitting at Pennsylvania chocolate factory where seven died in an explosion

Federal safety investigators said Tuesday that natural gas leaked from a defective fitting at the Pennsylvania chocolate factory where seven people died after a massive explosion.

While the cause for the March 24 explosion continues to be under investigation, officials found that one of two leaks at the R.M. Palmer Co. plant in West Reading was fractured, according to the National Transportation Safety Board. In an investigative update, the board said the fractured fitting was installed in 1982 and that they determined a small leak on another fitting installed in 2021.

The 1982 fitting had a known tendency to crack and in 2007 was added to a federal government list of pipe materials with “poor performance histories,” according to the update. It remained connected to the natural gas system and was left in place during utility work two years ago.

The explosion leveled an entire building and heavily damaged another. Employees in both said they smelled gas before the blast, according to investigators. Workers at the plant accused Palmer of ignoring warnings of a natural gas leak stating that the plant should have been evacuated.

Attorneys Robert Mongeluzzi and Andrew R. Duffy have filed a lawsuit against Palmer and DuPoint, the company that made the older fitting as well as the chocolate factory's natural gas utility UGI Corp. In a press release Tuesday, Mongeluzzi said the investigative update shows that the mass-casualty explosion was the result of "shoody materials and shoody work and called the findings "disturbing."

"In 2001, UGI had an opportunity to rectify this problem. It appears they failed to do so and in fact created a new problem because their new key they put in in 2021 was also a source of the leak." Duffy told USA TODAY Wednesday. "The fact that we learned that this plastic piping was still in place despite the 2021 work is devastating to the families."

Representatives for DuPoint and UGI told USA TODAY that they are aware of and reviewing the NTSB's update and can not comment on the litigation surrounding the blast.

"We are aware of and are carefully reviewing the update issued by the National Transportation & Safety Board in its investigation. Safety is our main priority and UGI is providing accurate and necessary information to the NTSB," the statement from UGI said. "Our focus and commitment remains with the victims and the West Reading community."

According to a message on their website, Palmer is also prohibited from commenting on the update as they are part of the investigation.

"We remain focused on rebuilding Palmer and doing all we can to help the entire West Reading community recover," the message reads.

A NTSB spokesperson told USA TODAY investigators have not yet determined the cause or contributing causes of the blast and there are no scheduled updates set as of now.

This article originally appeared on USA TODAY: Gas leaked from defective fitting at fatal chocolate factory explosion