Boeing Flags 737 MAX Software Glitch Affecting Landing Navigation

Post by : Saif

Boeing has identified a software problem in some 737 MAX aircraft that could cause an automated navigation feature to stop working during a specific landing situation. The issue is linked to a cockpit software update and can occur after pilots make changes to the planned flight path following a missed approach.

Software Issue Linked to Missed Approach

The problem can arise during a go-around, when an aircraft does not complete its landing and the pilots prepare for another approach. Under a particular sequence of events, changes to the programmed flight path can cause the aircraft's vertical navigation function to disengage.

This could leave pilots without the affected automated flight guidance during the next landing attempt. Boeing has said pilots already have procedures for handling the situation safely while a permanent software fix is developed.

Boeing Working on Permanent Fix

Boeing said it informed 737 operators about the issue last month. The company said the information provided to airlines reinforced existing pilot procedures for dealing with the situation.

Engineers are now developing a software update designed to permanently address the problem. Boeing has also been working with airlines and regulators as the issue is reviewed.

The exact number of aircraft operating with the affected software has not been publicly established.

FAA Reviews Potential Safety Concern

The Federal Aviation Administration said it is aware of the software issue affecting flight computers on certain 737 MAX aircraft and is working with Boeing and airlines.

The FAA said it will convene a Corrective Action Review Board and will take immediate action if the review identifies a safety concern.

The review comes as the FAA continues close oversight of the 737 MAX programme. The agency certified the 737 MAX 7 in August 2026 after extensive technical and safety reviews.

Read more: FAA Says It Is Not Blocking Boeing’s MAX 7 and MAX 10 Certification

Airlines Request Earlier Software Version

Southwest Airlines and United Airlines have asked Boeing not to deliver new 737 MAX aircraft equipped with the affected software, according to the Wall Street Journal report cited by Reuters.

The airlines have instead requested aircraft using an earlier software version while the issue is addressed. Other reports said some airlines' aircraft already in service do not use the software version involved in the problem.

737 MAX Remains Under Close Safety Review

The software issue adds to the regulatory attention surrounding the 737 MAX programme. The aircraft was globally grounded after two fatal crashes in 2018 and 2019.

Boeing has since made multiple changes to the aircraft and its operating procedures, while regulators have continued to monitor the programme.

The current software problem does not by itself establish that the 737 MAX is unsafe to fly. Boeing, airlines and the FAA are still assessing the issue, its scope and whether any additional action is required.

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