Petty Officer 3rd Class Derek Shank, a machinery technician with the maintenance and weapons division at Coast Guard Base Honolulu, stands inside the oily water separator aboard Coast Guard Cutter Sherman, April 1, 2015. As a machinery technician, Shank performs repairs on machinery, heavy-duty equipment, ventilation and air conditioning. (U.S. Coast Guard photo by Petty Officer 3rd Class Melissa E. McKenzie)