Boeing Finds 737 Max Software Glitch, Threatening Max 7 and 10 Delays

Q: If U.S. airlines are refusing the new 737 MAX software, which international carriers are currently flying with this landing glitch?

It is not publicly known which international airlines are flying 737 MAX jets with the affected Version U.14 software. Boeing, the FAA and media reports have confirmed only that major U.S. operators are not currently using it on their MAX 8 and MAX 9 fleets. Southwest said none of its aircraft, including new MAX 8 deliveries, have Version U.14. United said it is refusing deliveries with that software. Other U.S. carriers cited in related coverage, including American and Alaska, also said their current MAX fleets are not flying with the affected version. For international operators, Boeing has not released a carrier-by-carrier list, and reports specifically note that it is “not immediately clear how many aircraft are operating with the flawed software.” Boeing also said it does not necessarily know exactly which airlines have installed the update, because operators are not required to notify the company when they load software revisions. That means any identification of foreign carriers would be speculative unless an airline, Boeing or a regulator confirms it. The most accurate answer at this stage is that some non-U.S. operators may have aircraft with Version U.14, but no verified public list of those international carriers has been disclosed.

3 articles · Updated · Bloomberg · Sep 27

Boeing told 737 operators last month that a navigation-system software issue can leave pilots without automated flight guidance in a specific landing scenario, raising workload during approach.
The problem centers on aborted or missed landings and affects flight management computer versions 14 and 14.1; Boeing is developing a software update while reinforcing existing pilot procedures.
The FAA is investigating the glitch, and Southwest and United have said they will not accept new aircraft using that operating system.
Any fix could further slow certification and delivery of the 737 Max 7 and Max 10, extending pressure on a program already hit by years of safety and production setbacks.