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Safety Recommendation Details

Safety Recommendation H-18-058
Details
Synopsis: On March 29, 2017, about 12:20 p.m., a 2007 Dodge Ram 3500 pickup truck, occupied by a 20-year-old driver, was traveling north on US Highway 83, near Concan, Texas, when it crossed into the southbound lane and collided with a medium-size bus. The crash occurred near milepost 553.4, near the end of a right-hand curve. The bus was a 2004 Ford E350 Turtle Top Van Terra medium-size bus occupied by a 66-year-old driver and 13 passengers and operated by the First Baptist Church of New Braunfels, Texas. As a result of the crash, the bus driver and 12 passengers were fatally injured. The driver of the truck and one bus passenger sustained serious injuries.
Recommendation: TO THE NATIONAL TRAFFICS SAFETY ADMINISTRATION: Amend Federal Motor Vehicle Safety Standard 210 to increase the minimum anchorage spacing for individual seat belt assemblies, taking into account the dynamic testing of seat belt designs, seat belt fit, and vehicle configuration.
Original recommendation transmittal letter: PDF
Overall Status: Open - Acceptable Response
Mode: Highway
Location: Concan, TX, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: HWY17MH011
Accident Reports: Preliminary Report: Highway: HWY17MH011Pickup Truck Centerline Crossover Collision With Medium-Size Bus on US Highway 83, Concan, Texas, March 29, 2017
Report #: HAR-18-02
Accident Date: 3/29/2017
Issue Date: 11/20/2018
Date Closed:
Addressee(s) and Addressee Status: NHTSA (Open - Acceptable Response)
Keyword(s):

Safety Recommendation History
From: NTSB
To: NHTSA
Date: 7/1/2019
Response: We note that your research on the effects of novel seat configurations could be subsequently used to assess the need for the recommended regulatory revision regarding anchorage spacing. Because the lap belts’ narrow anchorage points contributed to the severity of injuries to passengers seated in row 4 of the Concan crash bus, we urge you to move forward with these efforts in a timely manner and provide needed federal leadership. Pending your publication of a final rule that incorporates the recommended revisions into FMVSS 210, Safety Recommendation H-18-58 is classified OPEN--ACCEPTABLE RESPONSE.

From: NHTSA
To: NTSB
Date: 4/18/2019
Response: -From Jonathan Morrison, Chief Counsel: Abdominal injuries are mitigated by maintaining the belt on the bony pelvis rather than the pelvis submarining under the seat belt. Many factors can influence the belt positioning/fit and subsequent submarining in a crash, such as seat belt angle and size of the occupant. Photographs in the Concan Report appear to indicate that the seat belt anchorages in the 3rd and 4th rows differed, in vertical as well as lateral anchorage location and belt routing, as a result of differing seat structure geometry for each row. Additionally, because lap/shoulder belts are superior to lap belts in predominantly frontal crashes, the absence of shoulder belts in the Concan bus limits an assessment of how seat anchorage width may have affected the injury outcomes. The current limits on seat belt anchorage location have been in place for decades. However, NHTSA is undertaking research on human responses and injury tolerance in novel seating configurations that may be expected to be prevalent in vehicles with automated driving systems. NHTSA awarded contracts for this work to the University of Michigan Transportation Research Institute, the Medical College of Wisconsin, and the Transportation Research Center/Ohio State University. These research activities are anticipated to involve occupant kinematics and injury associated with submarining. These activities also should provide NHTSA with tools to better assess seat belt geometry, including seat belt anchorage separation, and should be relevant to this topic. NHTSA requests this recommendation be classified as Open, Acceptable Response.

From: NTSB
To: NHTSA
Date: 11/20/2018
Response: On October 16, 2018, the NTSB adopted its report Pickup Truck Centerline Crossover Collision With Medium-Size Bus on US Highway 83, Concan, Texas, March 29, 2017, NTSB/HAR 18/02. The details of this investigation and the resulting safety recommendations may be found in the attached report, which can also be accessed at www.ntsb.gov. Among the safety recommendations are four new recommendations and one reiterated recommendation issued to the National Highway Traffic Safety Administration, which can be found on pages 46 and 47 of the report. The NTSB is vitally interested in these recommendations because they are designed to prevent accidents and save lives. We would appreciate a response within 90 days, detailing the actions you have taken or intend to take to implement these recommendations. When replying, please refer to the safety recommendations by number. We encourage you to submit your response to correspondence@ntsb.gov. If it exceeds 10 megabytes, including attachments, please e-mail us at the same address for instructions. Please do not submit both an electronic copy and a hard copy of the same response.