PPRuNe Forums - View Single Post - Boeing 737 Max Software Fixes Due to Lion Air Crash Delayed
Old 6th May 2019, 09:24
  #889 (permalink)  
GordonR_Cape
 
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Originally Posted by Bend alot
"When Boeing began delivering its 737 Max to customers in 2017, the company believed that a key cockpit warning light was a standard feature in all of the new jets.But months after the planes were flying, company engineers realized that the warning light worked only on planes whose customers had bought a different, optional indicator.In essence, that meant a safety feature that Boeing thought was standard was actually a premium add-on."

Maybe a bit of SIM training events may have picked this up?

Seems Boeing are way behind the 8 ball on the reports released in the last week - Good chance they are also well behind the 8 on training required.

Sloppy, sloppy, sloppy is a very big understatement it seems.

What news will tomorrow bring?
The training/testing problem is an extension of the software fault tree analysis problem, and the consistent shifting of risk. If you aren't "aware" that AOA is a critical parameter, you won't include testing for AOA disagree, or MCAS, or anything else...

In any case there were never, and are still not, enough simulators to actually test the MAX properly, so your question is moot. That goes back to the whole issue of timetable pressures.

I don't know how much of this is "news", but rather confirmation of what many suspected months ago. Prolonging the release of information may be justified on legal grounds, but the drip-drip of revelations does nothing to regain confidence.
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