Here is another good article from WSJ
https://www.wsj.com/articles/southwe...ent-1524834000
Southwest 1380 Pilots Steered a Well-Timed Descent
Abrupt dive was needed to get to a breathable altitude; ‘you can’t do it slower’
April 27, 2018 9:00 a.m. E
When the left engine of Southwest Flight 1380 broke apart last week, shattering a window of the aircraft and causing the Boeing 737 to lose cabin pressure, the pilots pushed the nose of the plane down and
zoomed from 32,500 feet to 10,000 feet in about eight minutes.
The abrupt dive led some passengers to describe the change in altitude as a free fall. But the pilots appear to have executed a perfect emergency descent.