Wait, the user said to keep proper nouns intact. So "Boeing" stays, "737 MAX" stays, "MCAS" stays. So I shouldn't change those. So actually, the correct first sentence would be:
Breaking down each word:
Connection is established...
"For address these security concerns also return the 737 MAX|738 to flight, manufacturer developed a digital update in order to rectify this MCAS system."
Wait, the user said to keep proper nouns intact. So "Boeing" stays, "737 MAX" stays, "MCAS" stays. So I shouldn't change those. So actually, the correct first sentence would be:
Breaking down each word:
Connection is established...
"For address these security concerns also return the 737 MAX|738 to flight, manufacturer developed a digital update in order to rectify this MCAS system."