NTSB Number: HAR-82/03 NTIS Number: PB82-916203SYNOPSIS
The National Transportation Safety Board determines that the probable cause of this accident was the failure of the Pacific Intermountain Express truckdriver to maintain his vehicle within the proper traffic lane during an evasive maneuver in a right curve at a speed in excess of the vehicle's critical overturn stability. Contributing to the driver's loss of control was the driver's cumulative fatigue. Contributing to the accident severity and loss of life were the puncture of the cargo tank and the ignition of the released gasoline cargo immediately following impact.
RECOMMENDATIONS
As a result of its investigation of this accident, the National Transportation Safety Board made the following recommendations:
to the Pacific Intermountain Express Company:
Establish qualifications and standard procedures for selecting new hire hazardous material drivers, and insure that the established qualifications and procedures are adhered to before a driver is allowed to perform driving duties. (Class II, Priority Action) (H-82-19)
Incorporate in its Driver's Manual for the Bulk Commodity Division, a requirement for drivers transporting bulk hazardous materials to promptly report the receipt of specified traffic citations, and a statement of company policy as to disciplinary actions which will be taken in the event of speeding or other unsafe driving practices. (Class II, Priority Action) (H-82-20)
to the National Tank Truck Carriers, Inc.:
Disseminate to its membership, especially
hazardous material carriers, the circumstances of this accident and urge
the member companies to establish qualifications and standard procedures
for selecting new operators of hazardous material vehicles. (Class II,
Priority Action) (H-82-21)
In addition to these recommendations,
the Safety Board reiterates and urges expedited action on the previous
recommendation made to the Federal Highway Administration on February 15,
1980, concerning disqualification rules for driver of commercial vehicles
transporting hazardous materials and other commodities:
Evaluate the need for, and feasibility of, specifying in the Federal Motor Carrier Safety Regulations a threshold level of traffic violations, based upon the total number and relative seriousness of the violations, above which a driver is disqualified to operate a commercial vehicle, and within 1 year publish the findings of the evaluation in the Federal Register for public comment or initiate appropriate rulemaking. (H-80-17)
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