https://www.flyingmag.com/faa-grounds-b-17s-through-airworthiness-directive/?utm_campaign=Newsletter%20-%20Flying%20Mag%20Daily&utm_medium=email&_hsmi=259030531&_hsenc=p2ANqtz-9_-JTNp_BiiOyO4gwC-XjYNILygd4pY9PXF0K78hDlOOubSG_NFSOXe85xqr4gNSFPV5zPldUBlcJe5_WunVghKZBc1A&utm_content=259030531&utm_source=hs_email
The airworthiness directive for Boeing B-17s has been released by the FAA and addresses issues with the bomber's wing spars.
airworthiness directivefaagroundsb