FAA reviews Boeing 737 MAX navigation software glitch
publishers 31articles 35first reported 26 Sep, 20:30 UTCdeveloping since 27 Sep · 4 editions
Boeing has identified a software problem on some 737 MAX aircraft that can affect automated vertical navigation after a missed approach, prompting a Federal Aviation Administration review and work on a permanent fix.
The issue can arise when pilots alter a preprogrammed flight path following a missed approach. Boeing said pilots may need to take additional steps to use automated tools during a subsequent approach, but are trained to land without the system. The company notified operators last month, reinforced existing procedures for handling the problem and is working with airlines on a process to reenable automated vertical navigation when it occurs.
The FAA said it is assessing the issue, will review Boeing’s proposed fix and “will take immediate action if it identifies a safety concern.” It remains unclear how many aircraft have the affected software.
Southwest Airlines said none of its fleet uses the software version involved. United Airlines also said it is not accepting MAX aircraft with the newer software. The Wall Street Journal reported that the carriers asked Boeing to deliver aircraft using an earlier version instead.
The review comes as Boeing seeks certification of the 737 MAX 10. CBS News reported that the FAA will delay approval of that model because of the glitch, while Boeing CEO Kelly Ortberg had said earlier in September that he expected certification soon. The MAX 7 was certified in August with the newer software, according to CNBC.
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