the car went down again today, only fault this time was 1873 rope tension fault shutdown. mode was Run Monitor. This time had him check the rope monitor and rope 6 was at 82% out of tolerance, which is 12 percent above the M81 parameter which caused the shut down . He checked rope 6, and indicated it was loose. he tightened it up, and did a tfr and back in service. the previous mechanic had tightened the same rope a few weeks ago, although he said it was not "that loose" this mechanic said it was definitely loose. He checked the ropes throughout the system, and can find no problem with that rope. He did say that the value of the load for that rope does change significantly from the very bottom to the very top. it seems to get loose at the upper floors. this was the only fault. last time it was 1871 and 709 but i had the previous mechanic turn off m80 so it could be that this job, 1871 will indeed shut the car down, or maybe the previous mechanic missed the 1873 fault. gonna keep an eye on it