Monthly cleaning was done with the ground-truthing CT and was checked for any wear and tear, which was in really good conditions. The only exception was for the surface rust on the upper links of the chain where it meets the stainless steel shackles. In all upper links of the chain, zincs were installed. As well most of all the shackles were moused with wire, which replaced the older zip ties that were in.
Besides the maintenance, the deep water CTD sensor was exchange with a "new" CTD sensor with an improved capillary tube for the pressure sensor. The replacement was done between 0830-0930. The replaced CTD sensor was brought back to the lab.
Hector Casanova