Plane maker will be hit with a second fine for installing faulty components on aircraft.
The Federal Aviation Administration plans to fine Boeing $5.4 million for allegedly fitting faulty slat tracks on about 178 737 Max aircraft.
Last month the FAA proposed a $3.9 million penalty against Boeing for installing similar nonconforming slat tracks on more than 100 737NG aircraft.
The FAA said the parts didn’t meet standards as they were weakened by ‘hydrogen embrittlement’ which happened during the manufacturing plating process.
The FAA claims Boeing submitted the aircraft for airworthiness certification even though it knew the parts had a flaw.
"We are working closely with our customers to take the appropriate corrective actions consistent with the Airworthiness Directive," a Boeing statement said.
Boeing said it will complete inspections of all affected 737 Max jets before the currently grounded aircraft are cleared to return to service.
