Boeing on Friday published an update detailing some of the steps it has taken to improve its culture and manufacturing as it tries to improve the safety and quality of its aircraft.This is a big year for Boeing.

One year after a near-catastrophic accident tipped Boeing Co. into a state of continuous crisis, the top US air-safety regulator cautioned that the planemaker’s efforts to improve its manufacturing quality are still in the early stages.

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.