Bjorn’s Corner: MCAS fix on the way

April 19, 2019, ©. Leeham News: Boeing’s CEO Dennis Muilenburg yesterday flew with the final version of the updated MCAS software on a 737 MAX. It will now enter certification flights, having completed 120 Boeing test flights. Here… Read More

Bjorn’s Corner: ET302 crash report, the first analysis

April 05, 2019, ©. Leeham News: The preliminary accident report of the ET302 crash was released yesterday. It confirmed what we wrote about earlier in the week, the pilots followed the prescribed procedure to stop MCAS. Yet they… Read More

ET302 used the Cut-Out switches to stop MCAS

By Bjorn Fehrm Note: The article offered a Video as an example of the effects of not trimming to neutral before hitting Cut-Off. After reviewing the effects of the video in the context of the article, MentourPilot decided… Read More

Returning the MAX to service

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Pontifications: I don’t know what to make of this

April 1, 2019, © Leeham News: One can’t help but think, a lot, about the two Boeing 737 MAX crashes and the facts that Boeing created the system, linked it to one sensor, not two, didn’t tell the… Read More

Bjorn’s Corner: The Ethiopian Airlines Flight 302 crash, Part 3.

March 23, 2019, ©. Leeham News: Boeing this week presented how they plan to get the 737 MAX back in the air again. MCAS has a fix. We look at what the fix tells us about the first… Read More

MCAS upgrade requires half-hour of pilot training

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Boeing presents MCAS fix to pilots, regulators and media

By Bjorn Fehrm March 27, 2018, © Leeham News.: Boeing presented the software fix to the MCAS problem in a press briefing ahead of meeting 200 Pilots and Regulators in Seattle today for a briefing around the 737… Read More

Bjorn’s Corner: Why did Ethiopian Airlines ET302 and Lion Air JT610 crash?

March 22, 2019, ©. Leeham News: Last week we covered what we knew about the Ethiopian Airlines Flight 302 crash. In the passing week, more facts have been revealed. We also have the first lead why both the… Read More

Bjorn’s Corner: The Ethiopian Airline’s Flight 302 crash

March 15, 2019, ©. Leeham News: With the crash in the weekend of Ethiopian Airlines Flight 302 we take a break from the Yaw and Roll stability discussions to look at what happened Sunday. The 737 MAX 8… Read More