Management & Operations

NTSB Warns of Potential Brake Problem in Buses

Posted on April 5, 2001

The National Transportation Safety Board (NTSB) is advising motorcoach operators to inspect all buses equipped with automatic slack adjusters manufactured by Haldex Brake Products for fractured or disconnected control arms. The NTSB issued its safety recommendation in a report on a 1998 motorcoach crash in which eight passengers were killed and 15 others, including the driver, were seriously injured. The 1992 Van Hool N.V. coach, operated by Bruins Transportation of Brooklyn, N.Y., was transporting 22 passengers from New York City to casinos in Atlantic City, N.J., when the driver lost control of the vehicle during a lane change on the Garden State Parkway near Old Bridge, N.J. The bus careened off the roadway and overturned into a ravine. Although brake performance was not determined to be a factor in the crash, NTSB investigators discovered that the right-side brake was grossly out of adjustment. Further examination revealed that the automatic slack adjuster on the brake had a fractured control arm. Based on wear patterns, the control arm was broken for some time. A brake inspection less than a month before the accident did not catch the problem. Follow-up testing by NTSB investigators at Haldex's corporate facility in Grain Valley, Mo., showed that slack adjusters with broken control arms can lead to a rapid loss of adjustment at the affected wheel. In its report, the safety board recommended that the American Bus Association and the United Motorcoach Association notify their members of this potential problem and urged them to inspect all vehicles with automatic slack adjusters for fractured or disconnected control arms. This self-inspection is particularly important because the location of the slack adjusters, especially on motorcoaches, makes it difficult for commercial vehicle inspectors to examine the control arm. The NTSB also recommended that the National Highway Traffic Safety Administration monitor the progress of Haldex in correcting the problem of rapid deadjustment of brakes caused by a fractured or disconnected control arm.

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

More News

L.A. Metro reconsidering selling naming rights for trains, stations

Since board approval in December, the staff received new information from the Los Angeles County Counsel’s Office saying corporate naming decisions by Metro could lead to free speech entanglements

Metra chief Orseno to retire in December 2017

Orseno began his career in 1974 as a ticket collector on Chicago Rock Island & Pacific Railroad commuter trains.

WSP | PB taps Werkmeister as nat'l strategic pursuit manager

She has 27 years of business development, marketing and sales experience, and has successfully led major strategic campaigns for large infrastructure pursuits across Southern California.

Cubic names Walker Ford VP/GM of Eastern region, Americas

This region includes Miami where the EASY Card revenue management system has become a major Cubic project, which recently expanded under a $33 million contract for upgrades to cloud-based services supporting mobile- and open-payment technologies.

New GSA partnership to reduce D.C. Metro energy costs

The partnership lowers Metro’s electricity supply rate within the District, and is expected to save the authority more than $1 million per year compared with existing supply rates.

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

Global Resource For Limousine and Bus Transportation

Please sign in or register to .    Close