https://defencepk.com/forums/threads/pakistan-air-force-news-discussions.76/post-1315261
And aircraft lifespan could be a factor but without an open accident report once can speculate on what we know.
However, not always an issue of aging fleet.
After all a B-52 just went down with all 8 lost.
The Indians lost a AN-32.
A skydiving plane went down as well here.
So, how was it being operated - aircraft life span - trainers can go on for decades but depends on structural fatigue - the airframe could be fine and maybe the cable had reached its lifespan, or a hinge or it was not installed correctly after a maintenance job.. The speculation is endless and does not correlate to a pattern(e.g. Mig-21 issues in IAF or F-16 early crashes in USAF service).