Hi Ron, 166374 is a UC-35D VMR-1 Det. Andrews. 166375, 166376, 166377, and 166378 are the active C-37s. Best regards, Tony On 10/15/07, mdmonitor1 at verizon.net <mdmonitor1 at verizon.net> wrote: > Marine 374 (C-37 # 166374, MASD, Andrews)- w/Bay Watch (354.8) entry into R4006.