Good morning. Boeing faces a fresh snag as it moves toward returning grounded jets, Nvidia shares hit a fresh record, and so-called bond king Bill Gross shuns Treasuries. Here’s what people are talking about.

Boeing took the first step toward returning its grounded 737 Max 9 jetliners to service, issuing guidance to airlines on what inspections are needed to prevent another midair fuselage blowout like the one on Alaska Airlines late last week. But as initial maintenance checks begin, United Airlines said it had uncovered signs of “installation issues” in some of its aircraft, underscoring the scrutiny that Boeing and one of its largest suppliers face as investigators hunt for the cause of the accident.