Official websites use .mil
Secure .mil websites use HTTPS
Two Helicopter Sea Combat Squadron 25 aviation electricians check the main rotor hub system of one of their MH-60S Knighthawk helicopters during a Phase D inspection at the HSC-25 hangar here June 6 . - Two Helicopter Sea Combat Squadron 25 aviation electricians check the main rotor hub system of one of their MH-60S Knighthawk helicopters during a Phase D inspection at the HSC-25 hangar here June 6 .