Questions were raised about the
safety of the Osprey after two crashes, including one in 1992
at a Marine Corps air base in Virginia that killed the crew.
In late 2000, the Marine Corps grounded the Osprey fleet after two crashes -- one in Arizona that killed four crew members and 15 passengers, and another in North Carolina that killed the crew.
A redesign was ordered on the Osprey, and it resumed flights in 2002.