Rail

NTSB: Jumper wire install cause of Miami people mover crash

Posted on November 10, 2011

The National Transportation Safety Board (NTSB) determined that the probable cause of the Nov. 28, 2008, accident at Miami International Airport, involving an automated people mover train, 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.

"We have seen in this accident and other investigations that too often there is a lack of crucial safeguards," said NTSB Chairman Deborah A.P. Hersman. "The state did not oversee the safety of the people mover. Finally, at the federal government level, no agency has authority for the safety oversight of people movers, much less any fixed-guideway or transit operations."

On Nov. 28, 2008, a three-car automated people mover train operating on a fixed guideway at Miami International Airport  failed to stop at the passenger platform and struck a wall at the end of the guideway. As a result of the accident, a technician and five passengers on the train were injured.

The NTSB investigation also determined that the following factors contributed to the accident:

  • 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.
  • Ineffective safety oversight by the Miami-Dade Aviation Department.
  • Lack of adequate safety oversight of such systems by the state of Florida.
  • Lack of authority by the U.S. Department of Transportation to provide adequate safety oversight of such systems.

As a result of this accident, the NTSB issued five new safety recommendations to the U.S. Department of Transportation, the 50 States and the District of Columbia, Miami-Dade County and Johnson Controls Inc. The NTSB also reiterated a previously issued recommendation to the U.S. Department of Transportation.

A synopsis of the NTSB report, including the probable cause, findings, and a complete list of the safety recommendations, is available at http://www.ntsb.gov/news/events/2011/miami_fl/index.html. The NTSB's full report will be available on the website in several weeks.

View comments or post a comment on this story. (0 Comments)

More News

FRA makes $73M available for rail capital projects, ops assistance

The grants are expected to leverage private, state, and local investments to boost a wide range of rail projects, including the potential for implementing PTC.

Stantec to lead $1.9 billion rail modernization project

The project will add a 9.8-mile third track and add critical capacity on Long Island Rail Road’s busiest corridor.

MTA workers spill 'secrets' of the NYC subway system

Train conductors answer questions about the safest place to sit in the railcar and whether a "sick person" is a euphemism for something else.

First Oklahoma City Streetcar delivered

Each streetcar can carry 104 passengers, and each stop will be served every 12 to 15 minutes.

Siemens, Atlanta Streetcar form techical, digital service partnership

Under the partnership, Siemens will provide technical support and materials for all preventative and corrective maintenance related to the streetcars.

See More News

Post a Comment

Post Comment

Comments (0)

More From The World's Largest Fleet Publisher

Automotive Fleet

The Car and truck fleet and leasing management magazine

Business Fleet

managing 10-50 company vehicles

Fleet Financials

Executive vehicle management

Government Fleet

managing public sector vehicles & equipment

TruckingInfo.com

THE COMMERCIAL TRUCK INDUSTRY’S MOST IN-DEPTH INFORMATION SOURCE

Work Truck Magazine

The number 1 resource for vocational truck fleets

Schoolbus Fleet

Serving school transportation professionals in the U.S. and Canada

LCT Magazine

Luxury Coach & Transportation

Please sign in or register to .    Close