FAA Warns Of 747-8 Crash Risk From Faulty Software

The FAA has warned that a software glitch on the 747-8 "could result in inadequate climb performance at an altitude insufficient for recovery, and consequent uncontrolled flight into terrain". The agency has issued an AD, effecting April 9, ordering 747-8 operators of affected aircraft to replace the electronic engine control software for certain GEnx engines. Boeing has described the risk to aircraft as “extremely remote” and said that no problems had yet been caused by the software. According to the FAA, when the aircraft switches to ‘air mode’ after a rejected landing, the defective software could prevent thrust reversers from stowing away correctly.

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