Wish I could find the original article, but you are right about it being the 1997 KAL 801 flight which crashed in Guam.
Also, it was a hillside, not a mountainside since 23 passengers and 3 crew survived.
The details of a 17 year ago plane crash fade with time, but that chilling account of a KAL copilot unable to convince his superior to avoid a looming disaster does not.
I used to fly KAL pretty regularly and haven't flown it since.
I remember that. The KAL plane did a CFIT ( controlled flight into terrain) aka the hillside. From what remember the cockpit voice recorder heard the auto systems screaming “Pull up!” and there were the sounds of a manuals’ pages frantically being turned along with Korean and broken English yelling “What means Pull Up?” then silence