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Accident Report Detail

 
Miami International Airport, Automated People Mover Train Collision with Passenger Terminal Wall

Executive Summary

About 4:44 p.m., eastern standard time, on November 28, 2008, a three-car train operating along a fixed guideway (defined by Title 49 Code of Federal Regulations Part 659 as any light, heavy, or rapid rail system, monorail, inclined plane, funicular, trolley, or automated guideway) on E Concourse at Miami International Airport near Miami, Florida, failed to stop at the passenger platform and struck a wall at the end of the guideway. Although a maintenance technician was monitoring train operations from the lead car of the train when the accident occurred, the train was operating in fully automatic mode without a human operator. The maintenance technician and five passengers on board the train were injured in the accident. One person on the passenger platform also required medical attention.​


Probable Cause

​The National Transportation Safety Board determines that the probable cause of this accident was the installation by Johnson Controls, Inc., maintenance technicians of a jumper wire that prevented the overspeed/overshoot system from activating to stop the train when the crystal within the primary program stop module failed. Contributing to the accident were (1) the failure of Johnson Controls, Inc., to provide its maintenance technicians with specific procedures regarding the potential disabling of vital train control systems during passenger operations, (2) ineffective safety oversight by the Miami-Dade Aviation Department, (3) lack of adequate safety oversight of such systems by the state of Florida, and (4) lack of authority by the U.S. Department of Transportation to provide adequate safety oversight of such systems.


Accident Location: Miami , FL    
Accident Date: 11/28/2008
Accident ID: DCA09MR002

Date Adopted: 11/8/2011
NTSB Number: RAR-11-01
NTIS Number: PB2011-916301

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