Reports broken by Bloomberg last week indicate that EASA has identified five issues to resolve with the Boeing 737 MAX, only four of which had previously been publicly discussed. Apart from the MCAS, the EASA identified issues included training, trim wheel force, unreliable AoA sensors and the software issue resulting from a lagging microprocessor, a new issue with the autopilot has also been identified.
Reports indicate that the autopilot does not always disengage when it should, and could interfere with pilot intervention to prevent an aerodynamic stall in certain situations.
Analysis
The second software issue with the lagging processor appears likely to put the timeline for return to service into the second quarter of 2020. The question regarding the autopilot issue is whether this is a quick software fix, or if the system itself needs to be changed. If it is the latter, this could push re-entry of the MAX into the second half of 2020. While we simply don’t know enough at this point, we do know that Boeing
management’s guidance of September is now out of date, and like waiting for a delayed flight at the airport, the 30 minute updates are rolling forward into additional 30 minute delays.
Reports broken by Bloomberg last week indicate that EASA has identified five issues to resolve with the Boeing 737 MAX, only four of which had previously been publicly discussed.Apart from the MCAS, the EASA identified issues included training, trim wheel force, unreliable AoA sensors and the software issue resulting from a lagging microprocessor, a new issue with the autopilot has also been identified.
Reports indicate that the autopilot does not always disengage when it should, and could interfere with pilot intervention to prevent an aerodynamic stall in certain situations.
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