5 x TRH1217 Upper Bearing Service Platform assemblies were installed between January 6th and January 13th at Stations 8, 10, 3, 4, and 5 (see attached photos).

The assembly went very smoothly.  Dan McDonald and Maico Dalla Valle worked together to install the platforms and wore harnesses and lanyards while working on top of the vault crane at each station (see attached photo).

Some notes were observed during assembly:

- There were not enough McMaster Carr 3949T1 3/4" Zinc Plated High Strength Snaps.  Assembly drawing TRH1217 Rev C only calls out 2 of these snaps, but this is incorrect, as 6 snaps are required per assembly.

- The ultra-coated 3/8-16 UNC bolts and nuts ( ref McMaster p/n 91257A634) were found to be very difficult to fasten.  In the future, zinc plated or mild-steel hardware should be used.

Both of the above items must be revised on TRH1217 towards Rev D.

Horizontal DBI Sala lifelines are now installed as well between Stations 8, 9, and 10, and between Stations 4 and 5, to permit access to the stations that do not have a direct ascent up the Cyclotron magnet structure.

All platforms and handrails are now installed on stations 8, 9, and 10 and stations 3, 4, and 5.  This permits full jack and gear reducer service at stations 9 and 4 (as adjacent stations are required for chainfall installation), as well as upper bearing service at all stations with platforms.

Still remaining is the work to drill the holes required for the ceiling mounted Self-Retracting Lifeline units that permit the first ascent and setup of the guardrails at each station.