The first day of class, six Saudis showed up. The second day it was five — No. 6 was never seen again.
Attendance in class was spotty at best. No. 4 and 5 disappeared during week two. No. 3 would show up about one-third of the time and No. 2 seemed to come on the days No. 3 was off. No. 1 got showed up enough to absorb half the course.
A week before graduation was supposed to happen, the Lockheed instructor was asked how many would graduate to be certified as C-130 mechanics. The answer was none. Asked why, he responded “because the either weren't there or just took off and never came back.”
The Saudis eventually subcontracted the C-130 maintenance to the Pakistanis.
It hasn’t changed since.
Saudi has a small population to begin with.
The number willing to actually work is a very small minority of that.