A crew chief with Marine Medium Tiltrotor Squadron 165 looks outside an MV-22B Osprey during a training flight from Marine Corps Air Station Miramar to Marine Corps Base Camp Pendleton, California, June 8. Crew chiefs aboard the Osprey assisted with maintaining visuals during the flight for the pilots. - A crew chief with Marine Medium Tiltrotor Squadron 165 looks outside an MV-22B Osprey during a training flight from Marine Corps Air Station Miramar to Marine Corps Base Camp Pendleton, California, June 8. Crew chiefs aboard the Osprey assisted with maintaining visuals during the flight for the pilots.