Federal officials are proposing modifications and additional inspections on nearly 2,000 Boeing planes in the United States to prevent a repeat of the engine-housing breakup that killed a passenger on a Southwest Airlines flight in 2018.

The proposal by the Federal Aviation Administration on Tuesday largely follows recommendations that Boeing made to airlines in July. It would require replacing fasteners and other parts near the engines of many older Boeing 737s.

Airlines will have until the end of July 2028 to make the changes, which Boeing developed.

The work won’t be required on Max jets, the newest version of the 737.