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Boeing 737 MAX 10 certification is delayed by a software glitch as shares dive 7%

From the Newshound archive · first published 29 September 2026.

A Boeing 737 MAX, the variant whose MAX 10 version faces an FAA certification block after a software glitch sent Boeing shares tumbling 7%, with Ryanair still expecting its first 15 aircraft in spring 2027.
A Boeing 737 MAX, the variant whose MAX 10 version faces an FAA certification block after a software glitch sent Boeing shares tumbling 7%, with Ryanair still expecting its first 15 aircraft in spring 2027.

The US Federal Aviation Administration has delayed certification of the Boeing 737 MAX 10 after a software glitch was discovered, sending Boeing shares tumbling 7%. The hold-up threatens delivery schedules for airlines worldwide that have ordered the aircraft. Ryanair, one of Boeing's biggest customers, said it still expects to receive its first 15 MAX 10 aircraft in spring 2027 and does not anticipate significant delays.

The FAA's certification block means no new US approval for the MAX 10 variant until the software fault is resolved.

WestJet said it had seen no in-service events related to the software currently under FAA scrutiny.

Ryanair's relatively sanguine outlook contrasts with a 7% single-day share price collapse that rattled Boeing investors.

MoreFinancial TimesSoftware glitch will delay US approval of newest Boeing 737ReutersUS FAA delays Boeing 737 MAX 10 certification, shares dive 7%Irish TimesRyanair doesn’t expect big delivery delays on Boeing software issue
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