2016-SW-007-AD; Various Restricted Category Helicopters, Originally Manufactured by Sikorsky Aircraft Corporation, Model EH-60A, HH-60L, S-70, S-70A, S-70C, S-70C(M), S-70C(M1), and UH-60A, to Require Initial and Recurring Inspections of the Main Rotor Blade Spindle Cuff for a Crack.