The FAA announced on 2026-09-28 that it will delay certification of the Boeing 737 MAX 10 due to a software issue that could cause the aircraft's flight control system to shut down. Boeing shares fell 6.9% on the news, as the company had been in final stages of winning approval for deliveries to airlines.
Boeing identified a software glitch in some 737 MAX aircraft that can disable automated vertical navigation functions during aborted landings, revealed between September 26-28, 2026. The FAA launched an investigation while Boeing had informed operators in August 2026, though the company knew of the issue for nearly two years prior.
Alaska Air anticipated that the FAA would certify Boeing's 737 MAX 10 by September 30, 2026, with entry into service expected between April and mid-May 2027. WestJet is also set to receive the first MAX 10 by year-end, followed by customers including Delta and United.