Boeing agreed to pay $17 million in fines to the United States Federal Aviation Administration for the production issues affecting the 737 MAX and 737 NG.

The authority found Boeing guilty of installing guidance systems on 759 Boeing 737 MAX and NG aircraft with sensors not approved for that equipment. The company also submitted for airworthiness certifications 178 Boeing 737 MAX aircraft fitted with slat tracks that were weakened by a condition known as hydrogen embrittlement.

For these two reasons, Boeing was fined $17 million, with an additional $10 million if it fails to apply corrective measures.

“We take our responsibility to meet all regulatory requirements very seriously,” a Boeing spokesperson said in a statement. “These penalties stem from issues that were raised in 2019 and which we fully resolved in our production system and supply chain.”