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

Boeing didn’t want to re-engine the 737–but had design standing by

March 20, 2019, © Leeham News: With nearly 400 Boeing 737 MAXes grounded across the globe, few will remember that Boeing didn’t really want to do the MAX. Officials in 2010-2011 engineered the MAX as a fallback airplane… Read More

Pontifications: Fluid, dynamic events upend MAX story

Special Edition March 20, 2019, © Leeham Co: I’ve been covering or employed in commercial aviation since 1979. I’m an aviation historian buff. I’ve read all about the groundings of the Douglas DC-6, Lockheed Constellation, Martin 202 and… Read More

Impact to Boeing for MAX grounding assessed

Subscription Required Introduction March 19, 2019, © Leeham News: The impact of the grounding of the 737 MAX to Boeing will hurt, but the effect likely will be short term. The most recent grounding of an airliner was… Read More