New details have emerged, and Bumble Bee Foods, LLC faces nearly $74,000 in fines, according to investigative findings released this week from a state investigation into the death of a tuna plant worker who was accidentally cooked to death in an industrial pressure cooker at a Santa Fe Springs facility in October of 2012.

The state agency issued six citations to Bumble Bee Foods LLC, carrying $73,995 in fines, for five workplace safety violations deemed "serious" and one deemed "general," according to the citation, which the California Department of Industrial Relations, Division of Occupational Safety and Health released Tuesday.

The investigation stemmed from the Oct. 11 death of Jose Melena, 62, of Wilmington, who was a father of six and a 6-year employee of the tuna plant at 13100 Arctic Circle Drive.

An autopsy performed after his body was discovered inside an industrial pressure cooker used to cook canned tuna determined he died from burns, Los Angeles County Department of Coroner officials said.

In a written statement, representatives of San Diego-based Bumble Bee Foods LLC acknowledged receiving the citations.

"We will be reviewing the citations with Cal/OSHA representatives in the coming weeks to resolve any disagreements regarding the citations," the statement said. "Safety is a top priority; we are cooperating fully with authorities, including Cal/OSHA, and have reviewed all safety procedures with plant employees and stressed the importance of following procedures to maximize employee safety. "

The Cal OSHA citations indicate that Melena, whose job was to load the ovens with large baskets stacked with tuna, had entered one of the ovens to make a repair or make an adjustment on a chain inside the machine.

Melena had been assigned to load a particular oven on the morning of his death, according to the Cal OSHA document. He entered the 54-inch by 36-foot oven to make an adjustment to a chain inside. He left a pallet jack he used to load the tuna into the oven outside the oven.

"Sometime before 5 a.m., (another employee) noticed the pallet jack was not being used," according to the Cal OSHA findings. "He assumed that (Melena), the basket pusher who normally operated the pallet jack at this time, was in the bathroom," according to the citation. "(The employee) proceeded to use the pallet jack. "

As the employee, who was not identified in the documents, continued working, a supervisor questioned why the employee was using Melena's pallet jack, and where Melena was.

An announcement was made over the businesses' intercom and employees began searching the plant for Melena, noticing that his vehicle remained in the parking lot, Cal/OSHA found. After searching for about an hour and a half, an employee suggested looking in the last oven that had been loaded.

According to the Cal/OSHA citations, workers let the oven cool for about 30 minutes before opening the doors and looking inside, where they discovered Melena.

Firefighters responded to the scene and pronounced the badly burned man dead about 7:20 a.m, officials said.

Though Melena was instructed to make an adjustment to a chain inside the large oven, the employer failed to take proper safety precautions or properly assess the danger posed to its employees while working inside the large ovens.

"Employees entered the retort ovens to perform maintenance duties and/or make adjustments to a chain inside the ovens," according to the Cal/OSHA citations document. "This was an unsafe practice which exposed employees to safety hazards for many years.

"The employer did not identify and evaluate the unsafe work practices while employees entered the Retort Ovens, as described by law," according to the document.

The company was cited for failing to perform inspections or audits related to the energy control procedures for the production area; failing to determine whether the ovens constituted "permit-required confined spaces," failing to post signs or notify employees regarding the confined space created by the ovens; failure to develop and implement a written permit-required confined space program; failure to implement permit-required confined space program elements as mandated by law; and failing to prove permit-required confined space training to employees working inside the ovens, according to the citations.

The final two violations carry the largest fines at $25,000 each.

Though the Santa Fe Springs tuna canning facility had no reported safety violations prior to the fatal mishap on Oct. 11, Cal/OSHA investigators learned during their investigation into Melena's death that previous serious injuries had gone unreported to the state agency at the facility.

One Bumble Bee employee had a finger amputated after it got caught in a chute on Oct. 23, 2011, according to Cal/OSHA spokesman Peter Melton, but the incident was not reported to the agency, as required by law.

Another employee suffered a fractured skull after falling from a forklift at the plant on June 28, 2011, Melton said. Again, the injury was never reported to Cal/OSHA.