160505-N-UD666-328 PACIFIC OCEAN (MAY 5, 2016) Sailors assigned to the Wolf Pack of Helicopter Strike Squadron (HSM) 75 conduct maintenance on the main rotor hub of an MH-60R Sea Hawk helicopter on the flight deck of USS Carl Vinson (CVN 70). Carl Vinson is underway conducting carrier qualifications off the coast of Southern California. (U.S. Navy Photo by Mass Communication Specialist Seaman Apprentice Daniel P. Jackson Norgart/Released)