Never push the Big Red Button (New York City subway failure)

Sean Donelan sean at donelan.com
Fri Sep 10 16:37:54 UTC 2021


NEW YORK CITY TRANSIT RAIL CONTROL CENTER POWER
OUTAGE ISSUE ON AUGUST 29, 2021
Key Findings
September 8, 2021


https://www.governor.ny.gov/sites/default/files/2021-09/WSP_Key_Findings_Summary-for_release.pdf

Key Findings
[...]

3. Based on the electrical equipment log readings and the manufacturer’s 
official assessment, it was determined that the most likely cause of RCC 
shutdown was the “Emergency Power Off” button being manually activated.

Secondary Findings

1. The “Emergency Power Off” button did not have a protective cover at the 
time of the shutdown or the following WSP investigation.

[...]
Mitigation Steps

1. Set up the electrical equipment Control and Communication systems 
properly to stay active so that personnel can monitor RCC electrical 
system operations.

[...]


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