Free Flight, Free Speech

The grounding wasn't FAA decision it was a based on preliminary flight data off of what we could all see and not information from the black boxnd voice recorder

That la times news article was all over the place.. pilot display for both pilots? What on earth is it on about? Is this one of those A.I. writers I keep reading about?

There seems to be some chaos involving getting the data out of the FDR.?

If it's to be believed the PIC had 8000hrs experience but only started flying B737s for a little more than a year. The second officer only had like 200hrs overall. If true, I'm sure this is something they are also looking at?

Further proof that the Boeing 737 MAX is ultimately flawed. I'm glad that Boeing has grounded it - I expected it would take a crash in the United States for it to be grounded there.

MCAS is implemented within the two Flight Control Computers (FCCs). The Left FCC uses the Left AOA sensor for MCAS and the Right FCC uses the Right AOA sensor for MCAS. Only one FCC operates at a time to provide MCAS commands. With electrical power to the FCCs maintained, the unit that provides MCAS changes between flights. In this manner, the AOA sensor that is used for MCAS changes with each flight.

This is highly dangerous.
For such a system you need at least two probes - if they are giving inconsistent data the system should be disabled completely. The Airbus does this very well - they have three probes with voting logic.

Boeing should stick to making their obsolete 737NG -- not trying to add flybywire to it. The Airbus is by far much safer than any 737MAX - because it is designed right from the start for fly by wire.

IAHM-COL wrote:

V12 wrote:Why the hell is automatic system "stronger" than pilot's input ?

The ages old question of whether the philosophy behind "fly-by-wire" or "die-by wire" technology is fundamentally sound, or not.

It is very sound -- but has to be done right. Boeing did a good job with the 777 and 787.
But with the 737MAX they failed utterly -- at the cost of over three hundred lives.

An interesting statistic:
https://www.linkedin.com/feed/update/urn:li:activity:6511459082912788481/

123apple wrote:

IAHM-COL wrote:

V12 wrote:Why the hell is automatic system "stronger" than pilot's input ?

The ages old question of whether the philosophy behind "fly-by-wire" or "die-by wire" technology is fundamentally sound, or not.

It is very sound -- but has to be done right.

And yet others will give the exact opposite answer, which is why this is an ages-old question by now.

more cartoons, this one also in Los Angeles Times

From my further understanding based off of actual B737 pilots from YouTube, MCAS isn't full time, it only activates only certain parameters of flight under very specific conditions. And, if these pilots are to be believed, they could be overridden only assuming the pilots know what they are doing.

The real question now is that if a fault in the system is causing it to continuously override, or the pilots may have confused the nose down command with something else and failed to take appropriate action?

E.g the override causess the nose to pitch up under power causing pilot to reverse the MCAS switch back on, etc, causing an uncontorlles oscillation and structural failure