PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 4th Sep 2019, 21:18
  #2165 (permalink)  
Peter H
 
Join Date: Jun 2008
Location: Cambridge UK
Posts: 192
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by WHBM
This just reminds me of one of our own programmers' responses to a fault issue. "Works As Coded". Well of course it Works As Coded. All computer programs do. But the coding is fundamentally wrong.
I think when MurphyWasRight said
"It is useful to keep in mind that as far as we know the MCAS software worked exactly as specified/designed/implemented"
he was meaning:
- the MCAS software worked exactly as specified.
- its design accurately matched the specification.
- its implementation accurately matched the design.

It seems a case of a specification being accurately implemented, rather than "the [MCAS] coding [being] fundamentally wrong".
Sadly, the risk-analysis of the specification was badly flawed.

As a retired s/w engineer I'm all too ready to criticise s/w SNAFUs, but I cannot see that this is one.
Peter H is offline