Right Arm has VDCs (with carbon fiber covers removed), long Gas Cherenkov pushed to the left(as particles see it) side, out of the envelope, on short rail extensions with a clamp to prevent it being slid back into the envelope, S2m with the front honeycomb/teflon cover removed. I also blew an accumulation of dust off the exit window.
Albert has changed some PMTs on the two arms. He wrote >1. All PMTs S2 left HRS >2. All PMTs S1 right HRS whitout S1-6L >On the September I change all PMTs S1 left HRS.