Takeaways from the AP’s investigation into Osprey safety issues

After being grounded for months following a crash last November that killed eight service members in Japan, the V-22 Osprey — a complicated aircraft that flies fast like a plane but converts to land like a helicopter — is back in the air.

But there are still questions as to whether it should be.

Since the military started flying the aircraft three decades ago, 64 personnel have been killed and 93 injured in crashes. Japan’s military briefly grounded its fleet again late last month...