The union's members still need to vote on Boeing's proposal and decide whether to authorize a strike if the offer is rejected. If that's the case, a walkout could begin as soon as Friday.
In January, a door plug flew off a Boeing 737 Max 9 plane during a flight, leaving a hole in the fuselage, some of which are produced by Spirit AeroSystems Holdings Inc.
The Federal Aviation Administration is recommending that airlines visually inspect the door plugs of Boeing 737-900ER jets after some airlines reported unspecified issues with the bolts.
The inspector general for the Transportation Department says U.S. regulators must address oversight failures that led to two deadly Boeing 737 Max crashes in 2018 and 2019.
