Big furloughs at the mechanical shops in 2019 were on the first Tuesday of June and the first Tuesday of September. They also did a few smaller furloughs on random dates. So far in 2020 they followed up with one on the first Monday of January and will likely see another in April if the hold the pattern. Some smaller furloughs between now and April would not be surprising.
Originally posted by @1nme+13kMwtUF.