This December 11, 2014 file photo shows the logo of the online retailer Amazon displayed on computer screens in London. (Photo: LEON NEAL, AFP/Getty Images) 
 
 WASHINGTON – The Federal Aviation Administration proposed a $350,000 fine Monday against Amazon.com for allegedly violating hazardous-materials regulations governing an air-shipment of cleanser with sulfuric acid. 
 
 The latest complaint focused on a shipment of a corrosive drain cleaner called “Amazing! LIQUID FIRE” on Oct. 15, 2014, that FAA alleged wasn’t properly packaged, accompanied by a required shipper’s declaration of dangerous goods or labeled properly. 
 
 As part of the enforcement, FAA said it has fined Amazon at least 22 other times in shipments from February 2013 through September 2015 for violating hazardous-materials regulations with air shipments. Those earlier fines totaled nearly $1.3 million, according to a list attached the latest complaint. 
 
 Kelly Cheeseman, an Amazon spokesperson, said the delivery company ships tens of millions of products daily and has developed sophisticated technologies to detect potential hazards. The company strives continuously to fix any defects in the process, Cheeseman said. 
 
 “We take the safety of our air cargo delivery partners seriously,” Cheeseman said. “We will continue to partner with the FAA in this area.” 
 
 The shipment that prompted the latest fine involved a one-gallon plastic bottle whose label with skull and crossbones warned that it “causes severe burns,” is "corrosive to eyes and skin” and is “harmful or fatal if swallowed,” according to the 11-page complaint from Glenn Brown of FAA’s enforcement division in Anchorage. The bottle was packed inside a fiberboard box, FAA said. 
 
 During the shipment from Louisville, Ky., to Boulder, Colo., the bottle began leaking through the fiberboard, according to FAA. 
 
 Nine United Parcel Service workers came into contact with the box after the leak and “reported feeling a burning sensation and needed to be assisted to a chemical wash,” the FAA said. 
 
 But FAA alleged that the Amazon shipment didn’t contain a declaration for dangerous goods, a shipping description of each hazardous material involved or labeling to warn about the hazard. 
 
 Amazon workers allegedly weren’t trained to load or handle hazardous materials, and the shipment wasn’t fitted with a leak-proof container or packaged with enough absorbent material, according to FAA. 
 
 Amazon has 30 days to formally reply to FAA’s allegations and potentially challenge the fine. 
 
 The incident followed a series of other fines ranging from $30,000 to $91,000 each against Amazon for offering hazardous materials air shipment without proper labeling and that often leaked. Those earlier incidents included: 
 
 • three $91,000 fines – from deliveries Jan. 18, 2013; July 31, 2013; and Sept. 16, 2013 – after offering a flammable aerosol or flammable liquids without disclosing them to UPS and Federal Express. In each case, the materials leaked during shipment. 
 
 • an $81,690 fine from a delivery Sept. 10, 2012, for a flammable liquid that wasn’t disclosed to FedEx and leaked. 
 
 • two $78,000 fines from deliveries Aug. 1, 2013 and Sept. 17, 2013 for flammable and corrosive liquids offered to UPS without disclosure. 
 
 FAA can impose $75,000 in civil penalties for each violation of hazardous-materials regulations and up to $175,000 for severe injury, illness, death or property damage. 
 
 Shipping orders go by on a conveyor belt at Amazon's San Bernardino Fulfillment Center on Oct. 29, 2013 in San Bernardino, California. (Photo: Kevork Djansezian, Getty Images) 
 
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 The FAA said in a statement that Amazon “has a history of violating” rules against shipping dangerous goods by air. Photo: Bloomberg News 
 
 The Federal Aviation Administration is proposing a $350,000 fine on Amazon.com Inc. AMZN -0.89% for allegedly shipping prohibited dangerous goods by air. 
 
 The proposed fine stems from a 2014 incident in which nine United Parcel Service Inc. employees came into contact with a corrosive chemical that had leaked through a shipping package and had to be treated with a chemical wash after feeling a burning sensation. The liquid leaked from a one-gallon container of “Amazing Liquid Fire,” a drain cleaner, during a flight from Louisville, Ky. to Boulder, Colo. 
 
 The fine comes as the FAA is stepping up enforcement of hazardous materials safety violations and as Amazon is moving deeper into the world of shipping goods using its own network of airplanes, trucks and warehouses. 
 
 In 2015, the FAA handed out more than $4.5 million in civil penalties for improper shipments of hazardous materials aboard airplanes, up from $3.4 million in 2014, according to a report in the Dallas Morning News. 
 
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 The FAA has stepped up hazardous materials enforcement following several fires aboard aircraft. In 2010, a UPS Boeing 747 aircraft that had just taken off from Dubai International Airport crashed when a fire broke out in its cargo hold, which was carrying lithium batteries, killing both pilots. 
 
 Meanwhile, Amazon has moved further this year into the world of air freight, leasing 20 Boeing 767 aircraft from Air Transport Services Group Inc., its first major move towards building its own contract air freight fleet. 
 
 In the Amazon incident, the FAA alleged that the shipment was not properly packaged, was not accompanied by a proper declaration stating the hazardous nature of its contents, and that Amazon had failed to provide emergency response information with the package and that the Amazon employees who handled it had not received proper training. 
 
 “Amazon has a history of violating the Hazardous Materials Regulations,” the agency said in a news release. From February 2013 to September 2015, Amazon was found to have violated such regulations 24 times, the FAA said, adding that the agency would continue to investigate the company’s compliance with air safety regulations. 
 
 In the case that drew the civil penalty, the FAA said the e-commerce retailer didn’t label the shipment as carrying hazardous materials and had not trained workers in proper handling of such goods. 
 
 Kelly Cheeseman, a spokeswoman for Amazon, said in an emailed statement that the company takes air cargo safety “very seriously” and that Amazon has developed “sophisticated technologies to detect potential shipping hazards” in the tens of millions of shipments it sends every day. 
 
 Satish Jindel, founder of SJ Consulting Group Inc., which advises logistics companies, said Amazon will put stricter controls in place to address such lapses as the company develops more of its own shipping capabilities. 
 
 “As they try to do more of the distribution using their own network of air and ground services, knowing the distinction between what can go by ground and what can go by air will become more and more important,” Mr. Jindel said. “Before, when they were smaller, they didn’t have to make as many distinctions between ground and air.” 
 
 Write to Robbie Whelan at robbie.whelan@wsj.com 

 Image: Hadrian / Shutterstock.com 
 
 The Federal Aviation Administration is fining Amazon $350,000 for not realizing it should take more precaution when shipping a product called “Amazing! LIQUID FIRE”. 
 
 
 
 According to the FAA, Amazon shipped a gallon of the “liquid fire”—in reality, a corrosive drain cleaner—from Kentucky to Colorado in 2014. The company might have gotten away with violating the hazardous materials requirement, except the container, which wasn’t properly packaged or labeled, leaked and the nine UPS employees who touched it had to be treated with a chemical wash. 
 
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 Amazon, for its part, says that it strives for “continuous improvement” and will “continue to partner with the FAA,” not that it really has a choice in the matter. 
 
 The FAA, however, is not looking so kindly on this partnership. It claims that Amazon has a history of shipping dangerous chemicals and has violated the hazardous materials rules 24 times in the past two years. In one case, Amazon paid $91,000 to apologize for sending flammable liquid adhesive. 
 
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 Liquid adhesive is one thing but “liquid fire”? Just take a look at the own reviews, one of which calls it “mutually assured destruction in a bottle” and then says “This is a toxic, defcon level cleaner. This should be a last resort option, once you start pouring, you can’t take it back.” Come on, Amazon, the warnings are everywhere. 
 
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 [FAA, via Reuters]
– Amazon has been on the Federal Aviation Administration's naughty list for a few years, with at least 24 violations for shipping hazardous materials. But now the agency is proposing a $350,000 fine after Amazon sent, via air, a package labeled "Amazing! LIQUID FIRE" from Louisville, Ky., to Boulder, Colo., on Oct. 15, 2014, Reuters reports. That "amazing" drain cleaner injured nine UPS workers when the package leaked, and the workers had to be doused with chemical wash after experiencing a burning sensation. The FAA contends the package wasn't packaged or labeled correctly, considering its corrosive contents, and didn't come with the form required for shipping dangerous goods. Per USA Today, the 1-gallon container was labeled with a skull and crossbones, as well as the warnings "causes severe burns" and "corrosive to eyes and skin," but that container was packed inside a fiberboard box. The Wall Street Journal notes that the proposed fine comes right as Amazon is diving deeper into the shipping arena with its own fleet of planes and trucks—and also as the FAA is getting tough on those who flout its rules on hazardous materials. The agency says that between February 2013 and September 2015, Amazon was hit with the two dozen regulation violations—resulting in at least 15 packages that leaked and totaling nearly $1.3 million in fines, per Reuters—and notes that it's going to keep a close eye on the retailer's shipping protocol. "We take the safety of our air cargo delivery partners seriously," an Amazon rep says, promising to keep working with the FAA. Gizmodo, for its part, says Amazon "should have known better," based on reviews of the product alone—one of which says it's "mutually assured destruction in a bottle."