RobotRisk Autonomous Systems Incident & Risk Register
RobotRisk / MTA / NYCT / 2021-07-26

Queens Boulevard Line signal system outage

S3 · 07/26
2021 · 13:40 ET · MTA / NYCT · NYC, USA

Record

CompanyMTA / NYCT
Categoryother
Typeoutage
Date07/26
2021
Time of day13:40 ET
LocationNYC, USA · Continental Avenue Master Tower, Queens
SeverityS3 (recall, enforcement, or fleet-wide fault)
ScaleQueens Blvd Line segment (4 routes), ~4 hours, 89 trains delayed
Confidencehigh
VerificationCited source on file; not independently re-verified
SourceamNewYork

What happened

A blown fuse at the Continental Avenue Master Tower cut power to the signaling system on the Queens Boulevard Line on July 26, 2021, freezing signals between 63rd Drive-Rego Park and Kew Gardens-Union Turnpike; the signal system itself was down for nearly 4 hours, forcing crews to reset signals by hand and delaying 89 trains on the E, F, M and R lines.

MTA / NYCT record context

Entries by year and severity

012021 S3: 11212026 S2: 1126
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By incident type

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MTA / NYCT vs other alternatives

other context

other: entries by year

14282017 S1: 12017 S5: 12172019 S3: 11192021 S3: 11212022 S5: 11222023 S3: 12023 S4: 23232024 S1: 22024 S2: 42024 S3: 32024 S4: 72024 S5: 521242025 S1: 12025 S2: 72025 S3: 62025 S4: 82025 S5: 628252026 S1: 12026 S2: 92026 S3: 32026 S4: 22026 S5: 31826
S1S2S3S4S5

other: failure modes

other: most entries

outage context

outage: by category

outage: by year

outage: severity profile

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S22024-12-11TTC (Toronto Transit Commission)Automatic Train Control server outage shuts down entire Line 1
S32019-02-28SFMTAAutomated Train Control System central computer failure halts subway communications
S12017-11PATH (Port Authority Trans-Hudson)Signal problem briefly suspends PATH service at 33rd Street

Other MTA / NYCT entries

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