Destruction of the USS Yorktown

The Constitution-class Federation starship USS Yorktown NCC-1717 was hurtled back in time ten centuries. The Yorktown was careening out of control toward a distant planet. Captain Barry Giotto ordered a saucer separation. The Yorktown separated the saucer section from the stardrive section. Both sections of the Yorktown crashed onto the planet, killing 250 crewmen.