A crew chief with Marine Medium Tiltrotor Squadron (VMM) 165 looks outside an MV-22B Osprey during a training flight from Marine Corps Air Station Miramar to Marine Corps Base Camp Pendleton, Calif., June 8. Crew chiefs aboard the Osprey assisted with maintaining visuals during the flight for the pilots. (U.S. Marine Corps photo by Sgt. Michael Thorn/Released) - A crew chief with Marine Medium Tiltrotor Squadron (VMM) 165 looks outside an MV-22B Osprey during a training flight from Marine Corps Air Station Miramar to Marine Corps Base Camp Pendleton, Calif., June 8. Crew chiefs aboard the Osprey assisted with maintaining visuals during the flight for the pilots. (U.S. Marine Corps photo by Sgt. Michael Thorn/Released)

Two MV-22B Ospreys with Marine Medium Tiltrotor Squadron (VMM) 166 get refueled before continuing a training exercise at the Grand Canyon, July 24. The Grand Canyon was the turning point during the exercise with VMM-166. - Two MV-22B Ospreys with Marine Medium Tiltrotor Squadron (VMM) 166 get refueled before continuing a training exercise at the Grand Canyon, July 24. The Grand Canyon was the turning point during the exercise with VMM-166.

Marines with Combat Logistics Regiment 17 coordinate with Marines aboard a CH-53E Super Stallion to attach a single-point hook to a model tank during an external lift exercise aboard Marine Corps Base Camp Pendleton, Calif., Nov. 20. The exercise required communication between Marines on the ground and in the air for successful lifts. - Marines with Combat Logistics Regiment 17 coordinate with Marines aboard a CH-53E Super Stallion to attach a single-point hook to a model tank during an external lift exercise aboard Marine Corps Base Camp Pendleton, Calif., Nov. 20. The exercise required communication between Marines on the ground and in the air for successful lifts.

Staff Sgt. Michael Allen, a crew chief with Marine Medium Tiltrotor Squadron 365, watches the propellers turn on an MV-22B Osprey to ensure the aircraft is ready for takeoff aboard Camp Bastion, Afghanistan, May 14. Two Ospreys from the squadron transported Marines from 1st Reconnaissance Battalion as they conducted counternarcotics operations along with Afghan National Security Forces in northern Nimroz province. - Staff Sgt. Michael Allen, a crew chief with Marine Medium Tiltrotor Squadron 365, watches the propellers turn on an MV-22B Osprey to ensure the aircraft is ready for takeoff aboard Camp Bastion, Afghanistan, May 14. Two Ospreys from the squadron transported Marines from 1st Reconnaissance Battalion as they conducted counternarcotics operations along with Afghan National Security Forces in northern Nimroz province.

A CH-53E Super Stallion with Marine Heavy Helicopter Squadron 466 fires warning flares over southwestern Afghanistan May 17. The squadron supported vehicle interdiction operations with Regimental Combat Team 5 and members of the Afghan National Army's military police. - A CH-53E Super Stallion with Marine Heavy Helicopter Squadron 466 fires warning flares over southwestern Afghanistan May 17. The squadron supported vehicle interdiction operations with Regimental Combat Team 5 and members of the Afghan National Army's military police.