Almost one year after a door plug blowout on one of its 737 Max jets led to an explosive decompression, Boeing is now detailing the steps it has taken to improve safety during the manufacturing process.

The Federal Aviation Administration's tougher oversight of Boeing will continue indefinitely, the agency's outgoing head said on Friday, nearly a year after a door panel missing four key bolts flew off a new Alaska Airlines 737 MAX 9 in mid-air.

Nearly one year after a door plug blew off a 737 MAX 9, Boeing says it is making progress in safety and quality.

A year after a door plug fell off an Alaska Airlines-operated (ALK) Boeing (BA) 737 Max 9 mid-flight, the Federal Aviation Administration says that Boeing still has a ways to go before it regains the government’s full confidence.