changeout of CGC THETIS’ MK75 using a previously-overhauled MK75 April 2022 CG Yard Posted on April 30, 2022 by laststandonzombieisland Leave a comment Bear-class cutter USCGC Thetis with her new (to her) MK 75 Previous Next Return to Coast Guard Updates: Islands fading, SLEP’ing Bears, and OPC gains steam