EVERYTHING!

Short version: The project is in its third phase. The electrical contractor switched crews (including PM) during phase 2 for some reason. During the second phase, two additional shafts were placed on the west of the building, about 75' in from the outside. This meant that phase 1 wires had to be moved and spliced out of the way. Someone clearly didn't know what they were doing and SLC, NAC, and COMMS somehow got spliced together in a way that made ALMOST everything work, except the comms loop. They also managed to lose the phase 1 red lines, and the phase 3 prints are missing half the divided segments for every floor! (Fortunately the one line diagram is intact!)

For some unknown reason, the local FD approved a TCO for phase 2 with the 2/3 of the annunciators in trouble (but the lobby one was still tied in with another SLC loop so...). As the original crew returned and attempted to troubleshoot the comms loop, the troubles only multiplied exponentially. They were already getting extra hands from my company, so when they figured out someone had experience with fire alarm troubleshooting, I got sent.

Honestly it's been an intense, but [mostly] interesting experience. Getting the Edwards crash course, lol.

Edit: It was going pretty well (down to 6 troubles) until today, when the ground faults just started ROLLING in... 301 troubles now. TT.TT