Boeing stock drops 5% on 737 MAX software fault; FAA convenes review board

Boeing shares fell over 5% after the FAA flagged a potential issue with a flight computer software update on certain 737 MAX aircraft. The regulator is working with Boeing and airlines and will convene a Corrective Action Review Board, signaling possible grounding or further delays. This adds to Boeing's ongoing quality-control problems and pressures its recovery and airline delivery schedules.