The Copter tail rotter section disintegrated. Would not be surprised Pakistani Military infrastructure is being used well beyond its life to the point where structural integrity is begin to creep in, combined with shortcuts and corruption in maintenance.
From thin skinned vehicles, to weak processes & controls, to poor fire base support and design, poor tactics, we should not be surprised that Pak Military is not as fit a fighting force as it once was or is made to believe.
We see abject failure after failure on so many levels but no one is held accountable at a high enough level for things to change.