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Tuesday, April 30, 2019
Boeing Changes Its Story, Admits 'Software Glitch' Disabled Critical Alerts On 737 MAX
Well then, Boeing is responsible for these downed airplanes and their dead passengers.
Go to abeldanger https://www.abeldanger.org/illegal-modifications-buap-capture-end/
to explore the BUAP/BHUAP rabbit hole - uninterruptible autopilot =
weaponized planes. Who benefits from ruining Boeing's reputation and
covering up assassination in a mass air tragedy?
In a clarification that only created more confusion, Boeing said
Monday that an alert intended to notify pilots when the plane might be
receiving erroneous data from one of the 737 MAX 8's 'angle of attack'
sensors wasn't disabled intentionally, as WSJ reported on Sunday, but that the feature had been disabled because of a previously undisclosed software glitch.
What's confusing is that Boeing had confirmed WSJ's story that the
aerospace company had neglected to tell the FAA and Southwest, the
biggest customer for the 737 MAX 8, that the alert feature had been
disabled because it had been made a new 'optional' safety feature. The alerts would have warned pilots that the plane's MCAS system might be about to misfire.
However, the airline appears to have changed its story, offering
little clarification as to why. During Boeing's shareholder meeting in
Chicago on Monday, CEO Dennis Muilenburg repeated the company's claim
that the alerts were a 'non-essential' feature, however, given the fact
that the misfire of Boeing's MCAS system (which Muilenburg also insisted
wasn't an 'anti-stall' system, as it has been regularly described in
media reports, but instead characterized it as a safety system) is
widely suspected to have caused the crashes of Lion Air and an Ethiopian
Airlines flights that together killed nearly 350 people makes this
claim difficult to believe.
The company said that it didn't intentionally deactivate the alerts,
and that they had only been disabled because of the software issue.
Boeing is now saying that its engineers, as well as safety regulators
at the FAA, either missed or overlooked the software glitch that
rendered these alerts inoperable, presumably even on planes where the
extra safety features had been paid for. The alerts had been standard on
earlier models.
The Monday statement suggests Boeing engineers and management, as well as U.S. air-safety regulators, either missed or overlooked one more software design problem when the model was certified two years ago.Before
Monday, neither Boeing nor the Federal Aviation Administration had
disclosed that an additional software glitch—rather than an intentional
plan by the plane maker—rendered so-called angle of attack alerts
inoperable on most MAX aircraft. The alerts warn pilots when there is a disagreement between two separate sensors measuring the angle of a plane’s nose.
Boeing’s disclosure comes as the plane maker scrambles to win FAA and
international approval of a software fix for MCAS, making it less
potent and less likely to misfire. In addition to the challenges already
facing the MAX fleet, revelations of the additional software
difficulties are likely to be scrutinized by airlines, passengers and
regulators world-wide as Boeing strives to restore their trust and
return the MAX fleet to service.
The alerts, intended to tell cockpit crews if sensors are
transmitting errant data, had been standard on earlier 737 models.
Officials at airlines around the globe, including Southwest Airlines
Co., the largest 737 MAX customer, assumed the alerts remained standard
until details emerged in the wake of the Lion Air crash. At that point,
the industry and FAA inspectors monitoring Southwest realized the alerts
hadn’t operated on most MAX aircraft, including Southwest jets.
Ultimately, Boeing's admission of this glitch could make winning FAA
approval to allow the planes to return to the skies even more difficult,
and it's also bound to make international regulators more wary of
Boeing's updated flight software, which the company has said is being
designed to make MCAS less powerful, and more quickly identify when a
plane's sensors are feeding it erroneous data.