Benjamin Moulton, 27, of Emmett, Idaho, a CH-53E helicopter pilot Capt. Jack Casey, 26, of Dover, New Hampshire, a CH-53E helicopter pilot Capt. Miguel Nava, 28, of Traverse City, Michigan ...

The crash of a Marine Corps helicopter last year that killed five service members was ultimately caused by pilot error.

More than one year later, the official investigation into the cause of the military helicopter crash that ... the crash was deemed “pilot error, which included the mishap pilot’s failure ...