An old airframe is safe if properly maintained. A newer airframe not properly maintained is not safe.
I’d fly it as long as it didn’t do duty in Hawaii. The short hauls really stack up the pressure cycles on the skin. It was about 1984, I think when the roof blew off Aloha (I think) airlines and they lost an attendant in the Pacific. Turns out the pressure cycles are more controlling than the T/O’s, landings and air time. As I recall the plane had only something like 10,000 hours but had 30,000 take offs?