Originally Posted by
oldoberon
Hans
"
AFAIK there are 2 AOA-s on the 737, the MCAS uses only AOA-1, Southwest elected the option of having AOA-1 on the PIC EFIS & AOA-2 on FO EFIS."
I am ex ground crew don't know all your abbreviations but you seem to be saying there were always 2 they just reconfigured their functionality.NOT added another as post 188 stated, what is the resulting effect of their change
oldoberon
Sorry, after 30 years it is hard not to speak in allcaps three letter words, here is the English version:
Every 737 has 2 Angle Of Attack indicators, and an OPTIONAL warning light for a difference in value between the two. SW have paid extra to display the actual AOA value displayed on the respective pilots instruments. The left pilot seas AOA one, the right pilot sees AOA 2 values. These should be the same, and if they are not seeing the value could help in deciding who is right.