Initially reporters attributed the blame to a signal problem at Grand Central after the city saw half an inch of snow the night before, allegedly damaging the sensitive signal. However, the MTA released a statement clarifying that the signal problems were caused by human error.
Sally Librera, Senior VP of Subways at the MTA said: “A transponder in an area of weekend track work on the 7 line that is designed to confirm the precise locations of trains was re-installed in the wrong location after work concluded before the morning rush hour. That caused trains to not connect properly to the transponder, resulting in slow speed operation as a safety precaution. Many customers therefore experienced severe delays as a result. This was a case of human error, not weather or equipment, and was completely unacceptable to our customers and to us. Simultaneously an unrelated switch issue caused delays on the E/M/F/R Queens Boulevard line. Because some riders had switched from the 7 line to the E/F/M/R line, their trips were impacted twice.”
Thankfully, the Long Island Railroad system accepted metro-card swipes during this time, providing 7 train commuters with alternate service.