DALLAS – Regulators say that British Airways violated safety rules by shipping an oxygen generator on an American Airlines flight from London to Dallas, and they are seeking to fine BA $195,000.

The Federal Aviation Administration said Friday that the chemical oxygen generator was in a cardboard box without any markings to describe its contents. The device was shipped to a Boeing repair shop in Texas in 2012.

Oxygen generators produce oxygen for ********* masks in case of a loss of cabin pressure. They have been banned as cargo on passenger flights since the 1996 **** and ***** of a ValuJet plane in the ******* Everglades that ****** 110 people.

The FAA charged that British Airways failed to declare and label the generator as hazardous and suitable for ******** only on a cargo plane. It also said that BAA employees who handled it lacked required training for shipping hazardous materials.

The FAA did not announce any action against American over the undeclared ********, nor did it disclose how it learned of the ********.

A spokeswoman for British Airways said the ******* was co-operating with the FAA and requested a meeting with regulators.

Separately, the FAA proposed to fine American Eagle $60,000 for a contractor’s use of improperly trained or unqualified workers to de-*** planes in Sioux Falls, South Dakota, in late 2013. The *******, now called Envoy Air, is scheduled to meet with the FAA next month.