Eric Brown is working on something that requires being in the starboard locker.
Many things that required maintenance were in this space. Eric is likely working on the solar panel regulator, which keeps the batteries charges when the boat is not being used. All the electrical circuits terminate at panels, which are only accessible from the stbd locker. The house batteries are located here. And, to work on the rear of the engine (i.e. change the oil or on-engine fuel filter, or replace the rear main shaft seal) one needs to remove all the bumpers, boat hooks, emergency tillers, and other things to gain access to the underworld where the engine exists.