08:25 AM EDT, 03/25/2024 (MT Newswires) -- Spirit Airlines ( SAVE ) is facing a proposed $146,500 civil penalty from the US Federal Aviation Administration for allegedly breaching the regulator's Hazardous Materials Regulations.

"The FAA alleges Spirit employees offered five separate shipments containing compressed oxygen cylinders to FedEx for air transportation from Detroit to New York in August and September 2022," the FAA said on Friday.

FedEx rejected one shipment due to packaging damage, failure to meet Flame Penetration Resistance Test requirements, and inadequate marking, the aviation regulator said.

The FAA claims the Spirit employees involved had not undergone mandated hazardous materials training.

The regulator said Spirit has 30 days to respond after receiving the FAA's enforcement letter.

Spirit did not immediately respond to a request for comment from MT Newswires.

Price: 4.73, Change: +0.03, Percent Change: +0.63