Airpressure… You can sometimes feel changes in it, as you are driving through a tunnel or down a hill but you wouldn’t think it is something that could bring a huge airplane down. But as it turns out, if you combine some minor deviations from procedures with a rapidly changing pressure… Really bad things can happen. Stay tuned.

Final Report: https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR9605.pdf