FAA Delays Boeing 737 Max 10 Certification Over Software Glitch; BA Shares Fall 6.9%

The Federal Aviation Administration said on September 29, 2026, it will delay certification of Boeing's 737 Max 10 until questions about a software glitch are resolved, pushing back a milestone expected in October and dealing a fresh blow to the planemaker's effort to bring its largest Max variant to market. FAA Administrator Bryan Bedford said the agency has not concluded whether the issue is a safety-of-flight matter. The glitch, disclosed by Boeing in August and supplied by GE Aerospace, can prevent pilots from accessing automated flight guidance during a go-around, increasing pilot workload. Bedford said a prior bug was corrected but the fix introduced a new one, and unlike the software implicated in the 2018 and 2019 Max 8 crashes, pilots retain control. Boeing stock fell 6.9% on September 29, 2026. The FAA plans to convene a Corrective Action Review Board, not expected to begin before next week. WestJet, which operates affected aircraft, reported no in-service issues.