The FAA reached a $17 million settlement with Boeing over production issues with 737 NG and 737 Max planes built between 2015 and 2019.
Boeing will have to pay within 30 days and a possible additional $10 million in civil penalties if it fails to solve the issues.
"Keeping the flying public safe is our primary responsibility. That is not negotiable, and the FAA will hold Boeing and the aviation industry accountable to keep our skies safe," FAA Administrator Steve Dickson said in a statement.
The company installed unapproved sensors on 759 of its older 737 aircraft and newer MAX jets, and Boeing sought approval for 178 Max planes that were built with potentially defective slat tracks on the wings that didn't comply with federal standards.
The issues were not related to two 737 Max jet crashes in 2018 and 2019 that killed 346 people.
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